1CHESS(6) Games Manual CHESS(6)
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6 chess - the game of chess
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9 /usr/games/chess
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12 Chess is a computer program that plays class D chess. Moves may be
13 given either in standard (descriptive) notation or in algebraic nota‐
14 tion. The symbol `+' is used to specify check; `o-o' and `o-o-o' spec‐
15 ify castling. To play black, type `first'; to print the board, type an
16 empty line.
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18 Each move is echoed in the appropriate notation followed by the pro‐
19 gram's reply.
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22 /usr/games/lib/book opening `book'
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25 The most cryptic diagnostic is `eh?' which means that the input was
26 syntactically incorrect.
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29 Over-use of this program will cause it to go away.
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32 Pawns may be promoted only to queens.
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36 CHESS(6)