Kriegspiel (chess) follows. The game is played with three boards, one for each player; the third is for the umpire (and spectators). Each opponent knows the exact position of just their pieces, and does not know where the opponent's pieces are (but can keep track of how many there are). Only the umpire knows the position of the game. The game proceeds in the following way: The umpire announces: Pawn promotions are not announced. Kriegspiel is sometimes used in chess problems. In these, usual variations introduced by different black moves are replaced by variations introduced by different announcements. An example of a
John Cochrane (chess player) chess aware of how strong Cochrane was at his peak, and described him as "Father of the English Chess School". During the second part of Cochrane's career in India his main opponents were the Indian players Moheschunder Bannerjee and Saumchurn Guttack. Cochrane's first recorded use of the Cochrane Gambit against Petrov's Defence was in a game against Bannerjee in 1848. Bannerjee's fondness for fianchettoed openings, as reported by Cochrane, eventually led to the Indian defence class of openings. Another game, published in William Norwood Potter's "City of London Chess Magazine" shows Bannerjee playing with the black pieces and beating Cochrane