George Duke wrote on Thu, Nov 4, 2010 05:16 PM UTC:
Time Travel recommends additional Kings for markers. (1)Bifurcators > (2)Great Shatranj > (3)Time Travel > (4)Mastodon > (5)Three Player > (6)Unicorn Great > (7)Sissa > (8)Big Board > (9)Eurasian > (10)Schoolbook > (11)Fischer Random > (12)Bilateral > (13)Centennial > (14)Kings Court > (15)Wildebeest.... The other Mutators, whether or not exclusively such, besides Time Travel now placed third would be Big Board, Fischer Random, Transactional(16), Eight-Stone(19), and Switching(24). http://www.chessvariants.org/index/displaycomment.php?commentid=25116.
Jeremy Good describes how this does work with appropriate damping so things are not unwieldy:
http://www.chessvariants.org/index/displaycomment.php?commentid=16576. How can Chess time travel? Analysis, Gifford explains, is 'what if?' time
travel, and T.T. Chess just puts that into practice when Problem Solving may be the fastest growing aspect: http://www.chessbase.com/newsdetail.asp?newsid=6768. Joyce nominated Time Travel a year ago, http://www.chessvariants.org/index/displaycomment.php?commentid=24679. These things take time. All travel forward up to 10, and King backwards up to 5 in process that Computer may, or may not, dislike. Candidates must be adjacent to King signalling something is up. Is backward-travelling King like Take-back? Yes, somewhat but only allowed are once or twice per game. Sports/games other than Chess have comparable substitutions or mis-directions, for example, skill gambling with odds always being in flux, Scrabble(tm) with continual renewal the tile-letters, bridge hands of cards each different. [Gifford has many CVs on the Track I/II interface hard to decide which category best suits for NextChess #29 nomination. Also relevant that Purvis has Time Traveler's Chess with rules lost in time at this moment.]