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IO Chess. Variant on 16 by 16 board with many pieces. (16x16, Cells: 256) [All Comments] [Add Comment or Rating]
George Duke wrote on Sat, Mar 12, 2005 07:21 PM UTC:Good ★★★★
'GHI,LargeCV': Normally the line is drawn at 12x12 for working coherence. Contrariwise Europan(14x14) and IO(16x16), having lower piece-type density, are superior to Ganymede(12x12). Pawn initial five-step at option. There is the sense to pair the following pieces: Gryphon; Spider as diagonal equivalent of Gryphon; Supercomputer(Trebuchet + Alfil + Camel); two-square-occupancy Wall; and Crooked Knight. The latter is called Straight Narrow Crooked Nightrider by Jorg Knappen in 2002 Nachtmahr. Pieces promote as they do in more recent 2003 Pocket Mutation Chess(hey it's all about promotion, isn't it?). Promotees include Gnu(N+Camel); Fortress(R+N+A); Hippogriff(G+R); Tarantula(Spider + B); Moonrider(NN + Zebra); Quantum Computer(Supercomputer + K + N). A further innovation is that the act of castling itself creates an alternate promoted form of the Rook then and there.