Berolina chess Berolina chess Berolina chess is a chess variant using a popular fairy chess piece called the Berolina pawn (also known as "Berlin pawn" or "Anti-pawn"). The Berolina pawn was invented by Edmund Nebermann in 1926 and has found frequent use in chess problems. Berolina chess follows the same rules as standard chess, including castling, except that all eight pawns are replaced by Berolina pawns. The Berolina pawn moves, without capturing, one square diagonally forward. It captures one square straight forward. (So, it is the converse of a standard chess pawn, which moves straight forward and captures diagonally forward.) Like a
Infinite chess a checkmate. Theorists conceive of infinite chess variations to expand the theory of chess in general, or as a model to study other mathematical, economic, or game-playing strategies. For infinite chess, mathematical investigations have shown that in a general endgame, one player can force a win in a finite number of moves. More specifically, it has been found that infinite chess is decidable; that is, given a position (such as formula_1, and assuming pawns do not promote) of a finite number of chess pieces which are uniformly mobile and with constant and linear freedom, and (for example) White to move,