Chess on a really big board

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Chess on a really big board: initial position. As Betza did not specify icons for the unorthodox pieces, instead using letters to represent them in diagrams (as for the standard pieces), some Omega Chess symbols have been used to represent some of the unorthodox piece types, along with some relatively standard icons for the knighted pieces from Capablanca chess, and an inverted knight for the rose.

Chess on a really big board is a large chess variant invented by Ralph Betza around 1996. It is played on a 16×16 chessboard with 16 pieces (on the back rank) and 16 pawns (on the second rank) per player. Since such a board can be constructed by pushing together four standard 8×8 boards, Betza also gave this variant the alternative names of four-board chess or chess on four boards.