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1.1 ! root 1: .th CHESS VI 11/1/73 ! 2: .sh NAME ! 3: chess \*- the game of chess ! 4: .sh SYNOPSIS ! 5: .bd /usr/games/chess ! 6: .sh DESCRIPTION ! 7: .it Chess ! 8: is a computer program that plays class D chess. ! 9: Moves may be given either in standard (descriptive) notation ! 10: or in algebraic notation. ! 11: The symbol `+' is used to specify check ! 12: and is not required; ! 13: `o-o' and `o-o-o' specify castling. ! 14: To play black, type `first'; ! 15: to print the board, type an empty line. ! 16: .s3 ! 17: Each move is echoed in the appropriate notation followed by ! 18: the program's reply and ! 19: the elapsed time in seconds. ! 20: .sh FILES ! 21: /usr/lib/book opening `book' ! 22: .sh DIAGNOSTICS ! 23: The most cryptic diagnostic is `eh?' which ! 24: means that the input was syntactically incorrect. ! 25: .sh WARNING ! 26: Over-use of this program has been known ! 27: to cause it to go away. ! 28: .sh AUTHOR ! 29: K. Thompson ! 30: .sh BUGS ! 31: Pawns may be promoted only to queens.
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