White:
King a1; Queen b2; Bishop a2, b1; Rook a3, c1; Knight b3, c2; Pawn a4, b4, c3, c4,
d1, d2, d3, d4.
Black:
King h8; Queen g7; Bishop g8, h7; Rook f8, h6; Knight f7, g6; Pawn e5,
e6, e7, e8, f5, f6, g5, h5.
All rules are as in orthodox chess, except the movement of pawns: pawns move without taking diagonally in the direction of the opponent, and take horizontally and vertically `forwards'. Pawns promote when they reach one of the two edges at the opponents side of the board, i.e., when they cannot make a non-capturing move anymore.