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The Chess Variant Pages



This page is written by the game's inventor, Daniel Lee.

Shinobi Chess

Shinobi Chess is a chess variant designed in 2021 by Couch Tomato with help from Fables, fourth in the series of asymmetric games. The Western chess army (“the Kingdom,” black) has invaded the land of the Sakura Clan (pink/sakura). While having mostly weak pieces at the start, the Clan is very resourceful and can instantly recruit and summon allies to defend at a minute’s notice. The Clan starts with many pieces in hand and can drop them on its side of the board in lieu of moving a piece. Furthermore, they can promote upon reaching the far end of the board – these abilities are similar to the game of shogi, with the major exception that captured pieces do not go into a player’s hand, so each drop counts! The game itself is incredibly balanced by engine evaluation on Fairy Stockfish, with a near 50-50 win ratio for the Kingdom and Clan.

Setup

Board Setup

The starting positions are as above. The Clan starts with pieces in hand also as shown above.

Pieces

Imperial Pieces

There are five new units unique to the Clan: the Ninja, the Dragon, Lances, Wooden Horses, and Monks. Captains are a new piece available to both sides, but only the Clan starts with one on the board. Do not be intimidated; all these pieces have movements that are very similar to the original chess pieces! The Ninja and Dragon are special pieces more unique pieces to the Clan, while the other new pieces are essentially weaker version of their Kingdom counterparts. The Ninja, the Dragon, and Captains do not promote.

The Clan also has access to the Kingdom pieces of the Rook, Bishop, and Knight after promotion. The Clan’s king is called a Kage (K) and has a different symbol, but the change is purely aesthetic and thematic: it behaves like an orthodox King. Clan Rooks and Bishops look different, but the changes are also aesthetic.

Captain (C)

Soldier 

The Clan starts with one Captain in the Queen's spot. Additional Captains can be obtained by both sides by promoting their pawns at the 7th rank. The Captain has the same movement of a King. Of course, unlike the King, capturing a Captain does not end the game.

Ninja (J)

Elephant

The Ninja is a hybrid piece that combines the movements of the bishop and the knight. In many variants, this is also known as the Archbishop. The Ninja is the Clan's strongest piece and is a very tricky piece that can easily penetrate defenses. The Ninja is also the only piece capable of checkmating on its own! The Ninja is slightly weaker than the Queen.

The Ninja does not promote.

Dragon (D)

Cannon

The Dragon is a hybrid piece that combines the movements of the rook and king (or for purists, rook and ferz). This is identical to the Dragon King (promoted Rook) in Shogi. The Dragon is weaker than the Ninja, but stronger than the Rook.

The Dragon does not promote.

Lance (L)

Advisor

The Lance is like a Rook but can only move straight forward. This is identical to the Lance in Shogi. One Lance starts in hand and can be thought of a droppable skewer. Because it can't retreat, make sure the drop counts! The Lances that start on the board are much less fiexible and serve to control the board. The Lance promotes to a Rook upon reaching the 7th (optional) or 8th (mandatory) ranks. The Lance is valued less than the typical minor Kingdom piece; however, it has hidden value in its ability to promote to one of the strongest pieces in the game.

Wooden Horse (H)

Advisor

The Wooden Horse (or Horse, for short) is like a Knight but can only move to the forward-most two spots. This is identical to the Knight in Shogi. One Horse starts in hand and can be thought of a droppable fork. Because it can't retreat, make sure the drop counts! The Knights that start on the board can exert pressure similarly, but must be moved carefully because they cannot retreat. The Horse promotes to a Knight upon reaching the 7th or 8th rank; promotion is mandatory. The Horse is valued less than the typical minor Kingdom piece; however, it has hidden value in its ability to promote to a Knight.

Monk (M)

Advisor

The Monk moves one space diagonally, either forwards or backwards. In other variants, this is also known as a Ferz/Fers. Both Monks start in hand. Monks may promote into a Bishop upon reaching the 7th or 8th ranks. The Monk is weaker than the typical minor Kingdom piece; however, it has hidden value in its ability to promote to a Bishop.

Rules

Notes

Shinobi Chess can be played at Pychess.



This 'user submitted' page is a collaboration between the posting user and the Chess Variant Pages. Registered contributors to the Chess Variant Pages have the ability to post their own works, subject to review and editing by the Chess Variant Pages Editorial Staff.


By Daniel Lee.

Last revised by Daniel Lee.


Web page created: 2021-08-28. Web page last updated: 2022-01-26