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- Shatranji. A hybrid of Shatranj and Chessgi. (8x8, Cells: 64) By Fergus Duniho.
- Siamese Chess. 4 player variant where pieces taken from your opponent are given to your partner. (2x(8x8), Cells: 128) (Recognized!)
- Synochess. Asymmetric west vs east variant where the western chess army plays against a Chinese and Korean-inspired army. By Daniel Lee.
- Synchronous Chess. The two sides truly move simultaneously.
- Synchronous Chess. Chess played with written simultaneous moves. By Ralf Hansmann.
- Symmetry Breaking Chess. Units become defined as they are selected and moved. Inventor: Claude Chaunier.
- Symmetron! 44. Most pieces move orthogonally or diagonally according to situation. Inventor: Antoine Fourrière and Roberto Lavieri.
- Symmetron! 44 . Most pieces move orthogonally or diagonally according to situation. By Antoine Fourrière and Roberto Lavieri.
- Symmetron! 44. Most pieces move orthogonally or diagonally according to situation. (7x6, Cells: 44) By Antoine Fourrière and Roberto Lavieri.
- Symmetron! 112. Large version of Symmetron!, with a third modifier. (11x10, Cells: 112) By Antoine Fourrière and Roberto Lavieri.
- Symmetron! 112. Large version of Symmetron!, with a third modifier. Inventor: Antoine Fourrière and Roberto Lavieri.
- Symmetron! 112 . Large version of Symmetron!, with a third modifier. By Antoine Fourrière and Roberto Lavieri.
- The Symmetrical Chess Collection . Web site containing a collection of Chess Variants based on perfect symmetry. By Derek Nalls.
- Symmetrical Chess Collection. Collection of several large symmetric chess variants with only line pieces. By Derek Nalls.
- Symmetrical Chess Collection. Collection of several large symmetric chess variants with only line pieces. Inventor: Derek Nalls.
- Symmetric Unirexal Chess. Each player has a half of a king. (8x8, Cells: 64) By (zzo38) A. Black.
- Symmetric Snark Hunting. Snark hunting game with symmetric positions. (6x11, Cells: 59) By (zzo38) A. Black.
- Symmetric Sissa. Problem based on an actual game. By Ben Good.
- Symmetric Sissa. Missing description By Carlos Cetina.
- Symmetric Sissa. Variant on 9 by 9 board with symmetric setup and two Sissa's (generalized Knight-like sliders). (9x9, Cells: 81) By Carlos Cetina.
- Symmetric Sissa . Variant on 9 by 9 board with symmetric setup and two Sissa's (generalized Knight-like sliders). Inventor: Carlos Cetina.
- Symmetric Monster Chess. Some pieces are single and some are double. (8x8, Cells: 72) By (zzo38) A. Black.
- Symmetric Chess. Variant with two Queens flanking the King and Bishops Conversion Rule. (9x8, Cells: 72) By Carlos Cetina.
- Symmetric Chess. Play chess with a couple of queens flanking the king. By Carlos Cetina.
- Symgi. A Shogi variant with back ranks filled with symmetric pieces. (9x9, Cells: 81) By Charles Gilman.
- Symchess. 10 x 10 setup with Capablanca-esque pieces and camels or fils. By Namik Zade.
- Symchess. Missing description (10x10, Cells: 100) By Namik Zade.
- Sylph. Air nymph, that moves diagonally forwards (non capturing) or forwards or downwards for capturing.
- Switching Realms Chess . All noncapturing moves must change the board subset a piece occupies. Inventor: Jörg Knappen.
- Switching Realms Chess. All noncapturing moves must change the board subset a piece occupies. (8x8, Cells: 64) By Jörg Knappen.
- Switching Chess. In addition to normal moves, switch with an adjacent friendly piece. By Tony Quintanilla.
- Switching Chess. In addition to normal moves, switch with an adjacent friendly piece. By Tony Quintanilla.
- Switching Chess. In addition to normal moves, switch with an adjacent friendly piece. (8x8, Cells: 64) By Tony Quintanilla.
- Switchback Xiang Qi. Folding the Xiang Qi board into 3d has surprisingly little effect. (3x(3x10), Cells: 90) By Charles Gilman.
- Switch-Side Chain-Chess. Optionally swap sides with your opponent upon completing a "chain". (8x8, Cells: 64) By Azlan Iqbal.
- Sweet 16 Chess. Play this hexadecimal variant that uses only Chess pieces on Jocly.
- Swedish Hopper Chess. Features the Swedish Hopper. By Abdul-Rahman Sibahi.
- Swedish Chess. Drop chess with regular pieces. Pieces dropped can relocate friendly pawns. By M Winther.
- Swedish Cannon Chess. Mats Winther's new piece and game on the Game Courier. Inventor: Mats Winther.
- Swedish Cannon Chess. Introducing the Swedish Cannon, a cannon similar to the Korean, but well suitable for a Western piece context (zrf available). By M Winther.
- Swash. Different shaped boards. (Cells: 64) By Robert J. Bell.
- Swarm Chess. Each of your units must move each turn if possible. Inventor: Ralph Betza.
- Swapmate Chess. Pieces have "mates" which they can swap places with. (8x8, Cells: 64) By Adrian Alvarez de la Campa.
- Swapmate Chess . Missing description By Adrian Alvarez de la Campa.
- Swap Chess I. Friendly units may swap places.
- Swap Chess. A move can consist of a series of pieces swapping places. (8x8, Cells: 64) By João Pedro Neto.
- Swap Chess. A move can consist of a series of pieces swapping places. By João Pedro Neto.
- Sveschky. 16 identical pieces per player whose moves are determined by a die. By Sergey Sirotkin.
- Suzumu Shogi. 16x16 variant based on Tenjiku Shogi. (16x16, Cells: 256) By A. M. DeWitt.
- Suzumu Shogi. 16x16 variant based on Tenjiku Shogi. (16x16, Cells: 256) By A. M. DeWitt.
- Surprise Chess. Speed chess combined with an umpire calling out random rule changes.
- Supremo Superchess. Decimal variant with extra powerful pieces. (10x10, Cells: 100) By Lim Ther Peng.
- Superschaak. Book and sets for playing variants with many new types of chess pieces. Inventor: Henk van Haeringen.
- SuperKing. Kings move like queens and leap over friendly pieces, but cannot move through check. (8x8, Cells: 64) Inventor: John Love-Jensen and Richard .
- Superchess. Four-handed chess game playable by two or four players. (Cells: 148) Inventor: Rolf W. Jacobson.
- Superchess in Corus Chess tournament. Missing description Inventor: Henk van Haeringen.
- SuperChess I. Big proprietary game for four. Pawns meet their opponents as in orthochess. Inventor: Rolf W. Jacobson.
- Superchess and Monarch. Booklet in English and Dutch and book in Dutch about large chess variants with fantasy pieces. Inventor: Henk van Haeringen.
- Superchess. Pieces can be put on top of rooks and moved with them. (8x8, Cells: 64) By John Montagna.
- Super4*Chess (four dimensional chess). Four dimensional chess variant played with 96 pieces. (4x(4x(4x4)), Cells: 256) By Kevin Pacey.
- Super-Drop-Xiang-Qi. Xiang-Qi with drops and more thing different when cross river, one new piece. (10x9, Cells: 90) By (zzo38) A. Black.
- Super-Chess. On a 12x12 board with slightly more powerful pawns and knights. Armies start back-to-back. (12x12, Cells: 144) By Prashant Hindurao Sawant.
- Super-Chess. www.oteroideas.com. By Superuser .
- super splicers. another army for chess with different armies. (8x8, Cells: 64) By Andy Maxson.
- Super Maharadscha. The Maharaja in Maharaja and the Sepoys is thought to be inferior: What if you added the camel move? Inventor: Namik Zade.
- Super Maharadscha . Missing description By Namik Zade.
- Super Maharadscha. Missing description (8x8, Cells: 64) By Namik Zade.
- Super Knights Grand Chess. Two Chancellors, One Archbishop, no knights and Amazon among Bishops, Rooks... Inventor: Charles Daniel.
- Super Knights Grand Chess. Missing description (10x10, Cells: 100) By Charles Daniel.
- Super Knights Grand Chess . The original Super Knights with the Archbishop, Amazon, and Chancellor, as well as two more exciting and innovative games. By Charles Daniel.
- Super Knights Chess 2. The Archbishop and Chancellor are complimented by a Ferz Knight, a Wazir Knight and Ninja Pawns. By Charles Daniel.
- Super King. King moves as queen but cannot move across a square under attack.
- Super Chess III. Big proprietary game with archers and cyclopses. Inventor: Ed Ginsberg.
- Super Chess III . Big proprietary game with archers and cyclopses. Inventor: Ed Ginsberg.
- Super Chess III . Big proprietary game with archers and cyclopses. (10x10, Cells: 100) By Ed Ginsberg.
- Super Chess II. Proprietary game from the 1970's. Inventor: Ralph Lauterbach.
- Super Chess 1993. Missing description (14x14, Cells: 196) Inventor: Michael N Goldshteyn.
- Sunflower HexChess Zillions zip . Sunflower HexChess Zillions rule file. By Graeme C Neatham.
- Sunflower HexChess. Hexagonal Chess in-the-round. (Cells: 120) By Graeme C Neatham.
- Sun Tzu Chess. Limited information chess inspired by Chinese Chess. (8x8, Cells: 64) By John Kipling Lewis.
- Summoner's Chess. Pieces are created and improved through the use of cards. (8x8, Cells: 64) By Michael Schmahl.
- Summoner's Chess. Pieces are created and improved through the use of cards. By Michael Schmahl.
- Summer 2005 Poll for New Recognized Variant. Vote for the new addition to the recognized Chess variants list for Summer 2005.
- Summary of Game variations, Clock times and other Information. Missing description By Glenn Nicholls.
- Sultanspiel. Play this large 19th century variant on Jocly. Inventor: Peguilhen.
- The Sultan's Game. Variant on 11 by 11 board from 19th century Germany. (11x11, Cells: 121) Inventor: Peguilhen.
- Suicide Void Chess. Variant of Suicide Chess. A piece creating a void in the board is moved after each capture. (8x8, Cells: 64) By Robert Atkinson.
- Suicide Chess. http://www.windowsphone.com/en-us/store/app/suicide-chess-free/b89dc1a3-2d23-410d-b580-aaaff54d81f5. By Freederick .
- Suffocation Chess. FIDE setup with new capture. Inventor: Tarun Moni.
- Suffocation Chess. FIDE setup with new capture. (8x8, Cells: 64) By Tarun Moni.
- Suffix Index to Man and Beast. Alphabetic list of suffixes used in the Man and Beast series. By Charles Gilman.
- Sudoku War. A fight that takes place in a Sudoku. (9x9, Cells: 81) By Joost Aan de Brugh.
- Sudoku War . A fight that takes place in a Sudoku. By Joost Aan de Brugh.
- Sudoku Chess . Missing description By Doug Chatham.
- Sudden Death Chess. If you do not capture, you must remove one of your own units. Inventor: Doug Chatham.
- Sudden Death Chess. A piece must be sacrificed after each non-capturing move. (8x8, Cells: 64) By Doug Chatham.
- Sudden Death Chess . A piece must be sacrificed after each non-capturing move. By Doug Chatham.
- Suction Chess. Pieces swap places instead of being removed from the board, resulting in very different strategy. By Nathaniel Virgo.
- SUCCHESS. Missing description (10x10, Cells: 100) By Djafer Medjahed.
- Subway Chess. In a turn, player moves first middle subway part of board and then a piece. (7x7, Cells: 41) By Francois Tremblay.
- Subway Chess . In a turn, player moves first middle subway part of board and then a piece. Inventor: Francois Tremblay.
- Subversion / Conversion. Pieces can be bribed to switch sides. By Terry H. Jones.
- Submission Illustration - Plutonian Chess. Fictitious Variant for Testing Purposes. By Steven Streetman.
- Stylish victory or stylish fail. Missing description (8x8, Cells: 64) By Daniil Frolov.
- Stupidhouse. Variant of Double Bughouse or Tandem Chess where partners have the same color. (2x(8x8), Cells: 128)
- Stupid. A cross variant between Ultima and orthodox chess. (8x8, Cells: 64) Inventor: Paul Monckton.
- Stuck in the Middle with You. 3 Different Boards and 3 Different Armies! By Jeremy Gabriel Good.
- Strong Yang. Another way of applying the Nearlydouble principle to a variant with Cannons. (13x13, Cells: 169) By Charles Gilman.
- Strong Pawns Chess. Pawns move and promote as minor versions of the pieces they represent.
- String Chess. A one-dimensional variant with a fairy theme. (1x24, Cells: 24) By Aaron Hall.
- String Chess. A one-dimensional variant with a fairy theme. Inventor: Aaron Hall.
- Stratomic Chess. Tactical nuclear missiles may be deployed after a piece is captured.
- Stratomic. Decimal variant with a nuclear missile piece. (10x10, Cells: 100) Inventor: Robert Montay-Marsais.
- Strato Chess. Information (no rules) about a quarter-century old three dimensional chess variant. (3x(8x8), Cells: 192)
- Strategy for Losing Chess . Website with strategic tips for Giveaway chess.
- StrategiChess II . Large, multi-player, mult-board variant with new piece types. (14x14, Cells: 196) By Alan Cartwright.
- StrategiChess . Large multi-player, multi-board chess variant. (14x14, Cells: 196) By Alan Cartwright.
- StrateGems . Chess problem magazine.
- Strategems. Chess problem magazine.
- Strate-Go Chess. Missing description (8x8, Cells: 64) By John Kipling Lewis.
- StrataChess v1.0. separate Strategic and Tactical gameplay. 2-6 players. Element of Chance. Terrain. Build your own armies. By Prussia General.
- Strange Chess. A large (12x12) chess variant. (12x12, Cells: 144) By Mark Hedden.
- Strand. Three dimensional game with pawns and kings that move along straight lines and must remain adjacent. (4x(4x4), Cells: 64) By Mike Cosgriff.
- Straights . Chess-like Naval Battle game from the end of the 19th Century. Inventor: Anne Marriot Watson.
- Straights. Chess-like Naval Battle game from the end of the 19th Century. (9x11, Cells: 81) Inventor: Anne Marriot Watson.
- Storm the Ivory Tower . Play this Smess adaptation of Chinese Chess with Zillions of Games. By Fergus Duniho.
- Storm the Ivory Tower. Play this Smess adaptation of Chinese Chess by email. By Fergus Duniho.
- Storm the Ivory Tower. A Smess adaptation of Chinese Chess. (9x10, Cells: 90) By Fergus Duniho.
- Stones and Relays. Pieces get to re-originate from neutral relay squares they attack. Inventor: Jim Aikin.
- Stones and Relays. An extended version of Eight-Stone Chess. (8x9, Cells: 72) By Jim Aikin.
- Stone's Chess. Chess variant with the addition of two Archbishops. (10x8, Cells: 80) By rhett applestone.
- Stone Garden Chess. The animal statues in the stone garden came to life and attacked the two rival kings! With the help of a policeman each, they…. (8x8, Cells: 64) By Lev Grigoriev.
- Stoltz Chess. Regular pieces plus a Swedish Cannon and an Archbishop, which are dropped onto the board (with zrf). By M Winther.
- Stockschach. 3d game with "stock" 3d analogues to FIDE pieces. (6x(6x6), Cells: 216) By Charles Gilman.
- Stock Goes East 49 files. Stockschach-style analogues to Shogi, Xiang Qi, and offshoots. (7x(7x9), Cells: 441) By Charles Gilman.
- Stock Goes East 25 files. Stockschach-style analogues to Shogi, Xiang Qi, and offshoots. (5x(5x9), Cells: 225) By Charles Gilman.
- Sting. A game where Kings can move like Grasshoppers in addition to their normal move. (8x8, Cells: 64)
- Sting . A game where Kings can move like Grasshoppers in addition to their normal move.
- Stheno Chess. Introducing the repulsive Stheno, which repels pieces as far as possible in the alignment direction (zrf available). By M Winther.
- Steward Chess. Kings are able to "crown" pieces, giving them extra moves. (8x8, Cells: 64) By Adrian Alvarez de la Campa.
- Steward. Omnidirectional Pawn. Inventor: Philip Marinelli and John William Brown.
- Stevenson's Four-Player Chess. A game for two 2-player teams on a regular Chess board with the object of capturing all opposing pieces. By Jake Stevenson.
- Stereo Chess. 8 by 8 board with four 4 by 4 boards stacked on top of it. (4x(), Cells: 128) Inventor: Gerhard W. Jensch.
- Steps Chess. Board looking like steps of many stairs.
- Stepping-stones of Chess. A Book by Shaye-Alexander Ellis Nicholls of Merridonia. By Glenn Nicholls.
- Step by Step Handicap Chess . Missing description By Namik Zade.
- Step and Circle TrigChess. Presentation of a short example game. By Graeme C Neatham.
- Step and Circle TrigChess . contains rules file with 2 boards and 2 piece sets. By Graeme C Neatham.
- Step and Circle TrigChess. Trigonal entry for the 45 or 46 cell 2007 design contest. (9x6, Cells: 46) By Graeme C Neatham.
- Steno-Chess. A variation on retrograde analysis. By Éric Angelini.
- Stelliform 6 player Chess. Stellisch from Wellisch, Stellicorn from Revergent, and Stellgi and Hexgi. (17x17, Cells: 121) By Charles Gilman.
- Steffan O' Sullivan's Three-players Chess. Three player chess variant on a board with 58 squares. By Steffan O'Sullivan.
- Steeple Chess . Crossover between race game and chess.
- Stealth Ninja Chess. Chess with two pairs of linear short-range leapers, and drop zone to add the Stealth Gryphon, Anti-Gryphon and Ninja Pawns. (10x10, Cells: 104) By Charles Daniel.
- Stealth Ninja Chess . Dynamic but balanced game with short-range leapers, and unusual sliding pieces: the Stealth Gryphon and Anti-Gryphon. By Charles Daniel.
- Stealth Ninja Chess. Features a Drop Zone and diverse pieces such as Ninja Guards, Ninja Warriors, Stealth Gryphon, Anti-Gryphon, and Ninja Pawns. By Charles Daniel.
- Stealth Chess. Commercial game with elements from Chess and from Stratego. (8x8, Cells: 64) Inventor: Dice Corporation.
- Stealth Chess. You must guess which opponent unit is which.
- Statistics for 3-piece piece Hexagonal Chess. Endgame statistics. By Dave McCooey.
- Stations . Missing description By Larry L. Smith.
- Stations. Missing description (9x5, Cells: 61) By Larry L. Smith.
- Stationary King Chess . Kings can't move.
- Static Chess. Take turns placing a unit so that none attacks another.
- Startchess.com . Chess search engine.
- Start-Again Chess II. Each unit may return to its original square if.
- Start-Again Chess I. Each unit may return to its original square if.
- The Starbound Sliders. A Chess With Different Armies team featuring rook-inspired sliders. By Andrew L Smith.
- Star Trek 3D Chess for Tournaments. A variation of Star Trek 3D Chess designed for tournament play. Inventor: Jens Meder and Andrew Bartmess.
- ST3DRoth. Charlie Roth's Revision of Star Trek 3D Chess. Inventor: Charles Roth and Andrew Bartmess.
- Star Pool Chess Zillions Saved Game . Download this file to see a saved game. By Peter Aronson and Tony Quintanilla.
- Star Pool Chess. Large variant of Makruk, with a center non-square that acts as a bridge. By Peter Aronson and Tony Quintanilla.
- Star Pool Chess . Large variant of Makruk, with a center non-square that acts as a bridge. Inventor: Peter Aronson and Tony Quintanilla.
- Star Pool Chess. Large variant of Makruk, with a center non-square that acts as a bridge. (Cells: 84) Inventor: Peter Aronson and Tony Quintanilla.
- Star of David 2 Level Hex Chess. An AOF offshoot on two side-10 triangles opposite ways round. (2x(), Cells: 110) By Charles Gilman.
- Star Chess. 3d-chess variant on two round levels. (Link.).
- Stanley Random Chess . Missing description Inventor: Austin Lockwood.
- Standoff Chess. A threat to capture the opponent's King does not give check if it opens one's own King to immediate recapture. (8x8, Cells: 64) By Robert Shimmin.
- Stallmate Chess. Both players win or both players loose. (8x8, Cells: 64) By punkus martyrus.
- Stalemate chess. Missing description (8x8, Cells: 64) By Daniil Frolov.
- Stahlberg Chess. Regular pieces plus a Swedish Cannon and a Chancellor, which are dropped onto the board (with zrf). By M Winther.
- Stacked-Copying Shogi. Missing description (9x9, Cells: 81) By (zzo38) A. Black.
- Stack Chess. Pieces are stacks of chips. (10x10, Cells: 100) By Doug Chatham.
- Stability Chess. Designed to minimize the first-move advantage by white, maximize fairness, and simplify the rules of chess. Inventor: Various.
- SSShess . Missing description By Namik Zade.
- SSShess. Attempt at optimal setup with the most popular in the West and in the East chess pieces with the optimum piece density. By Namik Zade.
- SSShess. Missing description (10x10, Cells: 100) By Namik Zade.
- Squirrels and Camels Chess. Squirrels camels and renn cavaliers along with FIDE pieces and guards on this 10 x 10 board. Inventor: Eric V. Greenwood.
- Squirrel Chess. Adapted from Squirrels and Camels Chess and reintroducing a unique old piece with zone of influence. By Vitya Makov.
- Squirrel Chess. Adapted from Squirrels and Camels Chess. (10x10, Cells: 100) By Vitya Makov.
- Squirrel. Jumps two orthogonally, two diagonally, or like a knight. Inventor: Dr. Francesco Piacenza.
- SquireKnight. Squire Knight combines Knight and Forward/Backward Pawn like moves. (8x8, Cells: 64) By Stephane Burkhart.
- Square graphics: empty squares. Images of empty squares for the creation of diagrams.
- Square Attrition Chess. Squares can be visited a limited number of times. By Thomas .
- Square and hex on same board. Missing description (16x8, Cells: 128) By Daniil Frolov.
- Squarcle Chess. Orthogonal pieces travel in square loops, diagonal pieces reflect. (8x8, Cells: 64) By Christan Hupp.
- Squarcle Chess . Orthogonal pieces travel in square loops, diagonal pieces reflect. Inventor: Christan Hupp.
- Squadron Chess. Uses only one type of piece besides the King. By Ken Franklin.
- Sputnik Chess. Rooks, bishops, and knights on the enemy half of the board.
- Springermühle . Chessboard Morris game played with Knights.
- Springboard. Missing description By Glenn Nicholls.
- SPQR. The perfect battle formation of Roman infantry. (12x12, Cells: 144) By Florin Lupusoru.
- Split Phase Tri-Plane. 3 Boards. Captured pieces split for use on other boards occupied only by kings. By Gary K. Gifford.
- Split Phase Tri-Chess. Pieces captured on Board "A" split into 2 [someimes not equal] units. These are dropped in Shog-style on the other 2 boards. (3x(8x8), Cells: 192) By Gary K. Gifford.
- Split Board Chess. Swap halves of the board every 5 moves.
- Spire orth triangular xiang-qi. Missing description (7x14, Cells: 98) By Daniil Frolov.
- Spiral Chess. The royal pieces slide along a spiral trajectory. By H. G. Muller.
- spIndecision Beryl. Two players fight with three armies on board formed by 39 triangles. (Cells: 39) By Alexandre Muñiz.
- Spinal Tap vs Terror Chess . The Spinal Tap Chess army vs the Terror Chess army in the battle of the 11x11 variants. Inventor: David Short.
- Spinal Tap vs Terror Chess. The Spinal Tap Chess army vs the Terror Chess army in the battle of the 11x11 variants. (11x11, Cells: 121) By David Short.
- Spinal Tap Chess Redux. Updated version of Spinal Tap Chess with some pieces from Existentialist Chess. (11x11, Cells: 121) By David Short.
- Spinal Tap Chess . Variant on an 11x11 board with a once-a-game mass 'Battle Move' of Pawns and Crabs. Inventor: David Short.
- Spinal Tap Chess. Variant on an 11x11 board with a once-a-game mass 'Battle Move' of Pawns and Crabs. (11x11, Cells: 121) By David Short.
- Spinach Chess. Right to make powerfull move alternates between players in variant with two kings. (8x8, Cells: 68) By Hans L. Bodlaender.
- Sphinx Chess. Likely the first 4D chess variant. Inventor: Vernon Rylands Parton.
- Sphinx Chess. Four dimensions. Inventor: Vernon Rylands Parton.
- Spherical Guard Chess. Hiashatar (Mongol Grand Chess) on a spherical board. (10x10, Cells: 100) By Graeme C Neatham.
- Spherical Guard Chess . Play with either the single-board or dual-board sphere projection . By Graeme C Neatham.
- Spherical Corner Chess. Game on a truly topologically spherical board with corner‐camp arrays. By Bn Em.
- Spherical Chinese Chess. XiangQi with a spherical board. (9x10, Cells: 92) By Graeme C Neatham.
- Spherical chess. Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) Inventor: Don Miller and Leo Nadvorney.
- SphereChess . Downloadable files to play a spherical chess variant. By Lukas A. Saul.
- Spell Chess. A limited supply of freeze and jump spells allow you to hinder the opponent or get extra moves. (8x8, Cells: 64)
- Spartan Skaki. Missing description (9x9, Cells: 81) By Larry L. Smith.
- Spartan Chess 28 for Zillions . Zip file with Zillions rules file and graphics. By Graeme C Neatham.
- Spartan Chess 28. Small board game created as simple diversion by brilliant hexagonal chess inventor Graeme C. Neatham. Inventor: Graeme C Neatham.
- Spartan Chess 28. Missing description (4x7, Cells: 28) By Graeme C Neatham.
- Spartan Chess. A game with unequal armies. (8x8, Cells: 64) By Steven Streetman.
- Spartan Chess. Play this unequal armies variant on Jocly. Inventor: Steven Streetman.
- Spartan Chess. The spartan army with 2 Kings and novel pieces fights against the persians (standard chess army). By Nick Wolff.
- Spanish Rules 1500. Missing description
- Spanish Rules 1283. Missing description
- Spacious Torus Chess. Toroidal 8 x 8 using "spacious" FIDE pieces which require the next square beyond to be empty to either move or capture. Inventor: Jianying Ji.
- Spacious Torus Chess. Chess on a toroidal board, using Ralph Betza's spacious pieces. (8x8, Cells: 64) By Jianying Ji.
- Spacious Torus Chess . Chess on a toroidal board, using Ralph Betza's spacious pieces. By Jianying Ji.
- Spacious Pieces. Pieces that need a bit more open space to move.
- Spacious Cannoneers vs Betza's classic armies. Several presets featuring Spacious Cannoneers vs Colorbound Clobberers, Nutty Knights and Remarkable Rookies. By Carlos Cetina.
- Spacious Cannoneers . Experimental Army for Chess with Different Armies vs the traditional CDA Armies. Inventor: Ralph Betza.
- SpaceWarp44 Chess. 44 square board has warp squares that allow a teleport to another warpsquare. By Jeff Rients.
- SpaceWarp44. 44 square board has warp squares that allow a teleport to another warpsquare. (5x9, Cells: 44) By Jeff Rients.
- SpaceWar. SpaceWar. By Joe Joyce.
- SpaceWar. SpaceWar rules. (16x12, Cells: 192) By Joe Joyce.
- Space Chess Photos. Missing description
- Space Chess. Three dimensional commercial chess variant. (3x(8x8), Cells: 192)
- Sovereign Chess. Ten neutral armies can be activated on this 16 x 16 board. (16x16, Cells: 256) By Mark Bates.
- Southern Shogi. Shogi variant where pieces move like friendly pieces `south' of them. (9x9, Cells: 81)
- Soul Reaver Chess. Missing description (8x8, Cells: 64) By Robert Kalin.
- Soucie. Moves on queen-lines exactly as many squares as there are pieces on that line. By Ben Good.
- Sosarian Chess. 12x8 Game with Capablanca-type pieces plus two lions. By Greg Strong.
- Sorry, King!. Two parallel games of Chess and Sorry (Ludo) influence one another. (10x10, Cells: 100) By Florin Lupusoru.
- Sorchess. A somewhat unorthodox Wizard enters the 64sq arena, yet with good charm. By Simon Edward Jepps.
- Sorcerer Chess. Big board chess featuring the Sorcerer (Zebra compund) and the Conjurer (Camel compound). By Charles Daniel.
- Sorcerer Chess. Practice the art of sorcery with two pairs of extra long leaping pieces: the Sorcerers and Conjurers. (10x10, Cells: 104) By Charles Daniel.
- The Sons of Mithra. Computer program for playing fantasy variant. Inventor: Michael Chang Gummelt and Holly Gummelt.
- The Sons of Mithra. Elaborate Fantasy variant with 13 different types of pieces per side. (10x10, Cells: 100) Inventor: Michael Chang Gummelt and Holly Gummelt.
- Sonic the Hedgehog Chess Advanced version. Missing description (8x8, Cells: 64) By Daniil Frolov.
- Sonic the Hedgehog Chess. After capturing, the capturing piece bounces off the enemy piece and continues moving. (8x8, Cells: 64)
- Solitary Patience Chess. Variant Chess Magazine vol 7, issue 56. (8x8, Cells: 64) By Stephane Burkhart.
- Solitaire dice chess. Solitaire dice chess (concept works with variants & board games of skill too). (8x8, Cells: 64) By Kevin Pacey.
- Solitaire chess puzzles . Several chess puzzles to try with Zillions of Games.
- Solar Chess. 2 to 6 players on a hexagonal board with quadrilateral tiles and Shogi-inspired drop rules. By Jeff Cornell.
- SOHO Chess. Chess on a 10x10 board with Champions, FADs, Wizards & Cannons. (10x10, Cells: 100) By Kevin Pacey.
- SOHO Chess. Chess on a 10x10 board with Champions, FADs, Wizards & Cannons. By Kevin Pacey.
- Soccer Chess I. Missing description
- Soccer Chess. Chess Variant inspired by soccer. (11x17, Cells: 189) By João Pedro Neto.
- So what's YOUR favorite?. Yeah, we've got a list of recognized variants. But what games are YOUR personal favorites? By Jared B. McComb.
- Snowplow Chess. Missing description
- Snowflake Xiang Qi. A better Xiang Hex. (Cells: 140) By John Smith.
- Sniper Chess. Frank Maus' game where most pieces move differently when capturing from how they move without capturing. Inventor: Frank Maus.
- Sneaky. A WinBoard Compatible Chess Engine that plays Cheapmate Chess. Inventor: Robert Price.
- Snark Hunt . Variant with unequal armies on board with 41 squares, inspired by a poem of Lewis Carroll's. By Peter Aronson.
- Snark Hunt. Variant with unequal armies on board with 41 squares, inspired by a poem of Lewis Carroll's. (6x8, Cells: 41) By Peter Aronson.
- Snake vs. Mongoose. White is supplemented by Mongooses, while Black has Snakes. (10x10, Cells: 100) By Bob Greenwade.
- Snake Chess. A variant played on a 2 by 12 cyclindrical board. (2x12, Cells: 24) By Sergey Sirotkin.
- Snake Chess . A variant played on a 2 by 12 cyclindrical board. Inventor: Sergey Sirotkin.
- SMIRF. Program that plays various 8x10 chess variants.
- Smess. Play this Parker Brothers Chess variant on Jocly. Inventor: Perry Grant.
- Smess. Play this old Parker Brothers game in which arrows direct movement. (Recognized!) Inventor: Reuben Klamer.
- Smess. British name of Smess, a Parker Brothers game in which arrows on squares determine the directions pieces may move. (7x8, Cells: 56) (Recognized!) Inventor: Perry Grant.
- Smegi Photographs. Photo's of small chess variant, a hybrid of Smess and Shogi. By Fergus Duniho.
- Smegi . Arrows on squares show where pieces can go - crossover between Smess and Shogi. By Fergus Duniho.
- Smegi. Arrows on squares show where pieces can go - crossover between Smess and Shogi. (5x8, Cells: 40) By Fergus Duniho.
- Smallest possible 2D and 3D chess. Missing description (2x(2x2), Cells: 4) By Daniil Frolov.
- Smaller Alice Chess. Missing description Inventor: Vernon Rylands Parton.
- Small-Deacon Chess. Missing description (7x7, Cells: 49) By (zzo38) A. Black.
- Small Spherical Chess. Board of form of sphere, with 38 squares. (Cells: 38) By Andrea Mori.
- Small Game Nearlydoubles. Nearlydouble versions of Diana, Los Alamos, et cetera. (7x10, Cells: 70) By Charles Gilman.
- Slippery Center Chess. Units slide over the center squares.
- SliderChess. Variant of Capablanca Chess with two extra Bishops per side replacing the Archbishop and Chancellor. By James Zuercher.
- Slide-shuffle. Variation of Shuffle Chess with special castling. (8x8, Cells: 64) By Patrick O'Neal.
- Slide-Chess. Variant on 44 squares with moving cages. (7x8, Cells: 44) By João Pedro Neto.
- Slide Chess . Variant on 44 squares with moving cages. Inventor: João Pedro Neto.
- Slide Chess. Variant on 44 squares with moving cages. Inventor: João Pedro Neto.
- Slanted Escalator Chess . Chess on an asymmetric board with interesting connectivity. Inventor: David Short.
- Slanted Escalator Chess. Chess on an asymmetric board with interesting connectivity. (8x8, Cells: 60) By David Short.
- Sky. Brilliant original game by Christine Bagley-Jones. Pieces promote through a succession of odd leapers eventually to a rooks. Inventor: Christine Bagley-Jones.
- Sky . Missing description By Christine Bagley-Jones.
- Skock. 64 pieces on an 8 x 8 board. Dice determine how far pieces can be moved. (8x8, Cells: 64) By Ulf Göransson.
- Skirmish56 Chess. This is Skirmish Chess on an Simplified Chess board. (7x8, Cells: 46) By Rich Hutnik.
- Skirmish Chess. Tony Paletta Modest proposal as separate link for discussion. (8x8, Cells: 64) Inventor: Tony Paletta.
- Skirmish Chess. Pawns start on the 3rd and 6th ranks with no double-move, pieces on the 2nd and 7th ranks. Inventor: Tony Paletta.
- Skirmish Chess . Pawns start on the 3rd and 6th ranks with no double-move, pieces on the 2nd and 7th ranks. Inventor: Tony Paletta.
- Skidoo Chess. Pieces can "skidoo" into an interior board. (2x(8x8), Cells: 128) By John Smith.
- Skica. 10x10 with Ski pieces and Camels. (10x10, Cells: 100) By Daniel Zacharias.
- Skica. 10x10 with Ski Pieces and Camels. (10x10, Cells: 100) By Daniel Zacharias.
- Skandaran Chess. Download Skandaran Chess at Zillions Website. By Francisco Marzoa.
- Skandaran Chess. Large variant with 32 pieces per side. (12x12, Cells: 144) By Francisco Marzoa.
- Sjah. Three or four player chess variants. By Eric Wouters.
- Sixteen Pawns. Trade a queen for 8 extra pawn. (8x8, Cells: 64) Inventor: M. de Kemur.
- Six Fortresses Short Range. A short-range-piece version of Six Fortresses. (9x9, Cells: 81) By Gary K. Gifford.
- Six Fortresses Short Range. A variation of Six Fortresses using short-ranged pieces. By Gary K. Gifford.
- Six Fortresses. Capture Fortress to releases free pieces to drop. Imposter Kings will complicate checkmates. By Gary K. Gifford.
- Six Fortresses. Capture Fortress to releases free pieces to drop. Imposter Kings will complicate checkmates. (9x9, Cells: 81) By Gary K. Gifford.
- Sittuyin (Burmese Chess). Missing description (8x8, Cells: 64)
- Sissa Chess. Missing description By Carlos Cetina.
- Sissa. Variant on 9 by 9 board with Sissa's. (9x9, Cells: 81) By Carlos Cetina.
- Sissa . Variant on 9 by 9 board with Sissa's, which move like a Bishop than a Rook, or like a Rook, then a Bishop. Inventor: Carlos Cetina.
- Sissa. Move exists of moving a number of squares as rook and an equal number of squares as bishop. Inventor: Carlos Cetina.
- Sirlin's Chess. Alternative presentation of "Chess 2 - The Sequel". (8x8, Cells: 64) Inventor: David Sirlin.
- Sir Bombalot. A variant of chess with pieces offering a myriad of different options at any given time. Inventor: Bruce Harper and Duncan Suttles.
- Sinojewish Chess. Hexagonal approximate analogue to Wildeurasian Qi. (13x13, Cells: 127) By Charles Gilman.
- Sino-European Chess. Missing description (9x9, Cells: 81) By Andy Thomas.
- Sino-European Chess . Missing description By Andy Thomas.
- Single Combat Chess. Missing description (8x8, Cells: 64) By Brett Ward.
- Single check chess. Checking the opponent wins the game. (8x8, Cells: 64)
- Sinyeonsanggi (新演象棋). I dramatized Sin-yeon-sang-hui (新演象戱), one of the variations of the Joseon Dynasty, in Xiangqi style. By Daphne Snowmoon.
- Simultaneous Chess. A variant of chess where players select moves at same time. (8x8, Cells: 64) By Rich Hutnik.
- Simply XiangQi. Correspondence Chinese Chess (Xiangqi) website. By Andy .
- Simplified Makpong. Makruk variant. By Henk Drost.
- Simplified chess. Simple subset of the chess rules. (8x8, Cells: 64) By Michiel Tas.
- Simplified Chess. Missing description (8x7, Cells: 56) By John Kipling Lewis.
- Simpleton's Chess Preset. This is an even simplier version of Simplified Chess. By Rich Hutnik.
- Simpleton's Chess. This is an even simplier version of Simplified Chess. (7x8, Cells: 56) By Rich Hutnik.
- A Simple Proposal. Variant where promotion may occur on the 7th or 8th rank, and may be delayed, but only to captured pieces. Inventor: Ted Clancy.
- Simple Marseillais Chess . Simplified version of Marseillais Chess. By Fergus Duniho.
- Silver General. Shogi piece that moves one square diagonally, or forward.
- Silver Elephant Chess. Missing description (10x8, Cells: 80) By Jose Carrillo.
- A Silly 42-Squares Board. A Silly 42-squares board with a little Unirexial variant you can play on it. (Cells: 42) By Jared B. McComb.
- Sigma 4 Shogi. Missing description (7x7, Cells: 49) By Daniel Roth.
- Siege Chess. Historic chess variant with fortress on cross-shaped board.
- Siege chess. A hexagonal three-player chess variant. (Cells: 192) By Ross Durossette.
- Siege. Missing description (10x8, Cells: 72) By Glenn Nicholls.
- Sideways Hourglass chess. Small variant on 6 by 7 board with two squares punched out. (7x6, Cells: 40)
- Side view chess. Missing description (8x8, Cells: 64) By Daniil Frolov.
- Siberian Chess. Missing description
- Shuuro. Large variant where you build your own army. (12x12, Cells: 144) Inventor: Alessio Cavatore.
- Shuffle Version Azchess . Missing description By Namik Zade.
- Shuffle Chess 4. Missing description
- Shuffle Chess 3. Missing description
- Shuffle Chess 2. Missing description
- Shuffle Chess 1. Missing description
- Shrink Chess II. Emptied edge rows and edge columns vanish permanently.
- Shrink Chess. The board is shrinking. (8x8, Cells: 64)
- Shrink Chess. Emptied rows and columns vanish permanently.
- Shrapnel Chess. Nearest units at 45 degree angles from line of capture.
- Shoxiang 108. A combination of Shogi and Xiang Qi on a number of ranks divisible by both 2 and 3. (9x12, Cells: 108) By Charles Gilman.
- Showdown Chess. No draws permitted. (8x8, Cells: 64) By Devin .
- Shosu Shogi. 10x10 Shogi variant with Queens and more powerful promoted pieces. By A. M. DeWitt.
- Shosu Shogi. 10x10 Shogi variant with Queens and more powerful promoted pieces. By A. M. DeWitt.
- The ShortRange Project . Missing description By Christine Bagley-Jones and Joe Joyce.
- The ShortRange Project. Missing description
- The short splicers. An experimental chess with different armies army. (8x8, Cells: 64) By Andy Maxson.
- Short Sliders. Pieces are initially limited to 4 spaces (if that), and promote to longer moves. (12x16, Cells: 192) By Bob Greenwade.
- Short Leaper Chess. Missing description (8x8, Cells: 64) By Petar Djurickovic.
- SHORANJI Maximus. 9 x 12 variant of Six Fortresses Short Range. 2-Step pawn initial move option. By Gary K. Gifford.
- SHORANJI. 9 x 10 variant of Six Fortresses Short Range which allows pawns to have an initial 2-step move. By Gary K. Gifford.
- Shop for Games. Selected games and search results for games from Amazon.
- Shop for Chess Variants. Chess variant equipment and books from Amazon.
- Shop for Chess Books. Selected Chess books and Chess book search results from Amazon.
- Shop for Board Games. Selected board games and board game search results on Amazon.
- Shoot Chess. Rifle chess with mandatory captures.
- Shoko Shogi. Smaller variant of Hook Shogi on a 13x13 board. (13x13, Cells: 169) By A. M. DeWitt.
- Shogun Chess. Pieces promote and can be dropped, similar to Shogi. By Daniel Lee.
- Shogi-set Nearlydouble Variants. Variants using two Shogi sets, minus a second King aside, but with moves adjusted for a large board. (13x12, Cells: 156) By Charles Gilman.
- Shogi-of-Chesstonia. 9 x 12 Shogi Variant that includes a Queen and some Modern Shatranj Pieces. (9x12, Cells: 108) By Gary K. Gifford.
- Shogi-of-Chesstonia. 9 x 12 Shogi Variant that includes a Queen and some Modern Shatranj Pieces. By Gary K. Gifford.
- Shogi With Pokémons. Pokemons with special powers are added to an otherwise normal shogi board. (11x11, Cells: 121) By (zzo38) A. Black.
- Shogi with Impassable Kings. A modest fix to Shogi that makes impasses impossible. By Fergus Duniho.
- Shogi with Cannons. Missing description (9x9, Cells: 81) By John Smith.
- Shogi WDA: Alquerque army. Experimental army, supposed to be played against standart Shogi army. (9x9, Cells: 81) By Daniil Frolov.
- Shogi Variants Site. Wikipedia dedicated to Shogi Variants.
- Shogi Variant Software . Index of shogi variant software (in Japanese).
- Shogi Variant Program. Home page of a freeware program, that allows humans to play shogi and 11 variants of shogi. (Link.).
- Shogi set. Photographs of a Shogi set.
- Shogi set. Photo's of shogi (Japanese chess) set.
- Shogi Pieces. Graphics of shogi pieces and symbols.
- Shogi Photo. Photo of crafted Shogi set.
- Shogi of the Central Madness. The center square is madness! You need card and dice to decide its effect. (9x9, Cells: 81) By (zzo38) A. Black.
- Shogi for Chess Players. Introduction to Shogi geared for western chess players.
- Shogi for Beginners. Missing description
- Shogi : Japan's Game of Strategy. Missing description
- Shogi 59. Shogi on half of a 9x12 board. (9x13, Cells: 59) By John Smith.
- Shogi web site . Web site on Shogi and its variants.
- Shogi . Westernized version using Alfaerie graphics.
- Shogi. Play the Japanese form of Chess, in which captured pieces can be dropped back as your own. (Recognized!)
- Shogi. Missing description (9x9, Cells: 81) (Recognized!)
- Shogi, Mortal Shogi, and Kamikaze Mortal Shogi . Optimized ZRFs for Japanese Chess and some recent variants.
- Shogi. Play the Japanese form of Chess with Jocly.
- Shogessi.... A link to the Tabletop Simulator module. Updated rules/graphics. (17x(17x19), Cells: 289) By Eric Watkins.
- Shogessi (The Allday Wars) . An original large, multiplayer Chess/Shogi variant.
- Shogchess. Missing description (9x11, Cells: 99) By Hafsteinn Kjartansson.
- Shocky. A program that plays Shogi.
- Shock Troops . Make a regular move or drop one of two pieces into a vacant space in the back rank. By Charles Daniel.
- Shock Troops. System of chess with standard board and pieces, but with new leaping pieces entering during play. By Charles Daniel.
- Shock Troops. The usual chess until the War Knight, Elephant Knight and Ninja Pawns enter the game. (8x8, Cells: 64) By Charles Daniel.
- Sho Shogi. Historic predecessor of shogi. (9x9, Cells: 81)
- Shinobi Chess. Asymmetric variant where one army has droppable Shogi-inspired pieces that start in hand. By Daniel Lee.
- Shikaar. Missing description (9x9, Cells: 79)
- Shifting Sands Chess . Special squares -- which can be dropped and moved -- change the types of pieces that land on them. By Tony Quintanilla.
- Shifting Sands Chess. Special squares -- which can be dropped and moved -- change the types of pieces that land on them. (6x7, Cells: 42) By Tony Quintanilla.
- Shifting Chess. Variant inspired on shifting puzzles; one can move pieces of the board. (8x8, Cells: 56) By David Howe.
- Shifted Square Chess. One square is removed from the normal playing area and one square is added at the edge of the normal playing area. (8x8, Cells: 64) By Ralph Betza.
- Shatranjian Shogi. Ferz and wazir, dabbaba and elephant offset each other in this new Shatranj drop game. Inventor: Gary K. Gifford.
- Shatranjian Shogi. Shatranj with extra pieces from days gone by and with Shogi drops. (9x9, Cells: 81) By Gary K. Gifford.
- Shatranjian Dragon Shogi. Shatranjian Shogi with pawn promotes to Dragons and capture revert to pawns. By Gary K. Gifford.
- Shatranjian Dragon Shogi. Shatranjian Shogi with Pawn-to-Dragon promotions- but when captured revert back to pawns. (9x9, Cells: 81) By Gary K. Gifford.
- Shatranji. Chessgi with Shatranj pieces. By Fergus Duniho.
- Shatranj With Different Armies. Like Chess with Different Armies, but for Shatranj. By Andrew L Smith.
- Shatranj Plus . Play four large historical variations of Shatranj including Tamerlane Chess!
- Shatranj of Troy. A Shatranj variant with Shogi-like drops, a Trojan Horse (with 6 pieces inside). By Gary K. Gifford.
- Shatranj of Troy. A Shatranj variant with Shogi-like drops, a Trojan Horse (with 6 pieces inside). Inventor: Gary K. Gifford.
- Shatranj of Troy. A Shatranj variant with Shogi-like drops, a Trojan Horse (with 6 pieces inside),. (9x9, Cells: 81) By Gary K. Gifford.
- Shatranj N W. catsmas. By Mark Simpson.
- Shatranj Kamil X. Shatranj Kamil, now with Chinese Cannons and Padwars (Jetan). By David Paulowich.
- Shatranj Kamil X. Shatranj Kamil, with new pieces from Jetan, Shogi and Xiangqi. (10x10, Cells: 100) By David Paulowich.
- Shatranj Kamil II. Large historic shatranj variant with new piece: dabbabah or war machine. (10x10, Cells: 100)
- Shatranj Kamil I. Large shatranj variant with new piece: camel. (10x10, Cells: 100)
- Shatranj Kamil (64). Modern Shatranj-based variant with new pieces. Inventor: David Paulowich.
- Shatranj Kamil (64). Modern Shatranj based variant on 8 by 8 board with new pieces. (8x8, Cells: 64) By David Paulowich.
- Shatranj Kamil. Shatranj Kamil or "Perfect Chess" a historical variant combining alfils, camels rooks and ferz.
- Shatranj Extended Tournament Scoring (S.E.T.S) Rules. An attempt at an improved scoring system for chess tournaments. (8x8, Cells: 64) By Rich Hutnik.
- Shatranj Elephants. Shatranj-like game, but with all short-range, limited-capturing pieces. By Christine Bagley-Jones.
- Shatranj Darwinian. A game that shows the evolution of today's classic pieces. Wazirs and Ferz evolve into modern pieces. By Gary K. Gifford.
- Shatranj Darwinian. Missing description (9x9, Cells: 81) By Gary K. Gifford.
- Shatranj al-Sultan. Normal Chess + Alibaba , with a Sultanic flavour . (10x8, Cells: 80) By Abdul-Rahman Sibahi.
- Shatranj Al-Husun - Citadel Chess. Historical variant of Shatranj.
- Shatranj. The widely played Arabian predecessor of modern chess. (8x8, Cells: 64) (Recognized!)
- Shatranj . Version with fancy graphics.
- Shatranj. The widely played historic Arabian game, predecessor of modern chess. (Recognized!)
- Shatranj. Persian chess, ancestral to the Western forms.
- Shatranj . The widely played historic Persian game, predecessor of modern chess.
- ShatraDev2 . Windows program to play Shatra against the computer.
- Shatra. Old game from the Altai from Russia, on special shaped board with draughts-like capture.
- Shatra . Old game from the Altai from Russia, on special shaped board with draughts-like capture.
- Shatra . Old game from the Altai from Russia, on special shaped board with draughts-like capture.
- Shatar, Old 1 Hia. Old Shatar with one Hia. (8x8, Cells: 64) By Gary K. Gifford.
- Shatar. Mongolian chess. (8x8, Cells: 64)
- shat2diag2. A tool to make uncheckered chess and fairy / variant chess diagrams. By Hans L. Bodlaender.
- Shatranj. Play this historic predecessor of Chess on Jocly.
- Sharp Chess. Drawless Chess with minor victory conditions. (8x8, Cells: 64) By Daniel Zacharias.
- On ShareDebate International. Online BBS magazine, and software for chinese chess, Korean chess, and for making sets for these games.
- Share Squares. AKA Two's Company; Three's a Crowd. By JT K.
- Shanghai Palace Chess . Download these files to play this blend of Chinese, Japanese and Western Chess with Zillions of Games. Inventor: Gary K. Gifford.
- Shanghai Palace Chess. Play this blend of Chinese, Japanese and Western Chess on Game Courier! Inventor: Gary K. Gifford.
- Shanghai Palace Chess. A blend of Chinese, Japanese, and Western Chess. (9x9, Cells: 81) By Gary K. Gifford.
- Shambhala chess. Maybe, it's the misterious first form of chess? Actually, most probably, not. (8x8, Cells: 64) By Daniil Frolov.
- Shamanic Chess. Pieces may be transformed into 'Shamans'. By M Winther.
- Shamanic Chess . Pieces may be transformed into 'Shamans'. By M Winther.
- Shakti. Christian Freeling's simple, elegant game with disappearing squares. Inventor: Christian Freeling.
- Shakti. On a 7 by 7 board with disappearing squares. (7x7, Cells: 49) By Christian Freeling.
- Shako_Balbo. Game with Diamond Shape Board. By .
- Shako . Cannons and elephants are added in variant on 10 by 10 board. (10x10, Cells: 100) By Jean-Louis Cazaux.
- Shako. Play this Xiangqi-inspired decimal variant on Jocly. Inventor: Jean-Louis Cazaux.
- Shako. Cannons and elephants are added in variant on 10 by 10 board. Inventor: Jean-Louis Cazaux.
- Shako. Cannons and elephants are added in variant on 10 by 10 board. (10x10, Cells: 100) Inventor: Jean-Louis Cazaux.
- Shafran's Hexagonal Chess. Play this Hexagonal variant from the Soviet Union on Jocly. Inventor: Isaak Grigorevich Shafran.
- Shafran's Hexagonal Chess. Hexagonal variant from the early Soviet Union. Inventor: Isaak Grigorevich Shafran.
- Shafran's Hexagonal Chess. I G Shafran's Game on the Game Courier. Inventor: Isaak Grigorevich Shafran.
- Shafran's Hexagonal Chess. A classic hexagonal variant from Russia. Inventor: Isaak Grigorevich Shafran.
- Sha'rah. Missing description (13x13, Cells: 169) By Patrik Hedman.
- sFhIoDgEi. A variant nesting two different smaller variants within it. (17x17, Cells: 289) By Charles Gilman.
- Seventeen Pawns. You can replace opponent's queen by nine pawns. (8x8, Cells: 64) By (zzo38) A. Black.
- Seven Knights Chess. Unusual army for Red.
- Sesqui-dimensional Chess. 1d circular variant where pieces move clockwise, counterclockwise, and *across the center* of the circle. By Jeff Cornell.
- SerPent Chess 50. Pentagonal cells form hexagonal blocks in two ways. (Cells: 50) By Charles Gilman.
- Sergeant. A combination of the Berolina and usual Pawns.
- Sequence Of M X N Chess Games. A chess variant for boards of size M by N, for about all pairs of positive integers M, N.
- Sequence of Fibonacci and Lucas Chess Design Games. Variants based on Fibonacci numbers.
- Separate Realms Chess II. A Variant of Separate Realms Chess with standard FIDE King, and more powerful Knights and Queens. (8x8, Cells: 64) By Jörg Knappen.
- Separate Realms Chess. Pieces capture like normal FIDE pieces, but have limited moves that only take them to part of the board when not capturing. Inventor: Michael Nelson and Peter Aronson.
- Separate Realms Chess . Pieces capture like normal FIDE pieces, but have limited moves that only take them to part of the board when not capturing. Inventor: Michael Nelson and Peter Aronson.
- Separate Realms Chess. Pieces capture like normal FIDE pieces, but have limited moves that only take them to part of the board when not capturing. (8x8, Cells: 64) By Michael Nelson and Peter Aronson.
- Separate. FIDE Chess but with Queens starting trapped behind enemy lines. Inventor: Brian Wong and Adrian Alvarez de la Campa.
- Separate. Queens start trapped behind enemy lines. (8x8, Cells: 64) By Brian Wong.
- Separate . Queens start trapped behind enemy lines. Inventor: Brian Wong.
- Sentinel Chess. Instead of queens, players have sentinels who can transform into 8 pawns. (8x8, Cells: 64)
- Senterej . Missing description
- Sentai Chess. Chess variant inspired by Power Rangers; precursor to Fusion Chess. By Fergus Duniho.
- semisho. Chess, but the left half of the pieces are shogi-based. (8x8, Cells: 64) By Argon Teuhai.
- Semedo. Missing description (5x8, Cells: 40)
- Self's three-handed chess. 19th century chess variant for three players. (Cells: 144) Inventor: Henry J. Self.
- Self Eliminator. You may capture your own units.
- Self Eliminator. You are allowed to take your own pieces. (8x8, Cells: 64) Inventor: John Gallicano.
- Seireigi. Variant of standard Shogi with promotable Gold Generals, as well as more varied and animalistic promotions. (9x9, Cells: 81) By A. M. DeWitt.
- Seireigi. Variant of standard Shogi with promotable Gold Generals, as well as more varied and animalistic promotions. (9x9, Cells: 81) By A. M. DeWitt.
- Seirawan Chess. It's Chess with the option to drop some additional pieces on the board. (8x8, Cells: 64) Inventor: Yasser Seirawan and Bruce Harper.
- Seirawan Chess. Play this variant with extra pieces to drop into the game. By M Winther.
- Seirawan Chess. Normal rules, except two extra pieces can be introduced: Hawk and Elephant (with zrf). By Stephen R. Stockman.
- Seirawan Chess. FIDE chess, put players have N+R and N+B in hand to drop. Inventor: Yasser Seirawan and Bruce Harper.
- Seirawan Chess. invented by GM Yasser Seirawan, a conservative drop chess (zrf available). Inventor: Yasser Seirawan and Bruce Harper.
- Seikaku Ni Wanai Shogi. Shogi with no strong pieces, but very strong promotions. (9x9, Cells: 81) By Lev Grigoriev.