Tri-Ashtapada Chess is played on a 8x8x3 field. Each player has a force of 48 pieces.

• ARCHBISHOP[A] slides diagonal or triagonal.
• BISHOP[B] slides diagonal.
• DRAGON[D] slides orthogonal or triagonal.
• FAVOURITE[F] slides orthogonal or diagonal.
• GARGOYLE[G] steps one or leaps to the next orthgonal, diagonal or triagonal cell.
• HIPPOGRIFF[H] leaps to the opposite corner of a 2x2x3 area.
• KING[K] steps one orthogonal, diagonal or triagonal cell.
• KNIGHT[N] leaps to the opposite corner of a 1x2x3 area.
• PAWN[P] steps without capturing one forward orthogonal cell, captures to any one forward diagonal or triagonal cell and promotes, upon reaching the farthest rank, to any previously captured piece. In Tri-Ashtapada Chess, the Pawn is allowed to make an initial two step move, as long as both cells are vacant. Therefore, since the en passant rule applies, remember that such captures may occur both diagonally and triagonally.
• QUEEN[Q] slides orthogonal, diagonal or triagonal.
• ROOK[R] slides orthogonal.
• UNICORN[U] slides triagonal. Upon perfoming a capture, it has the option of promoting to any previously captured piece.
• WYVERN[W] leaps to the opposite corner of a 2x3x3 area.