.lit
	INSTRUCTIONS FOR CHESS V001D
	----------------------------

1)	COMMANDS		ACTION
	-------			------
	PW			COMPUTER PLAYS FOR WHITE
	PB			COMPUTER PLAYS FOR BLACK
	PN			COMPUTER PLAYS FOR NEITHER
	BD			BOARD DISPLAY
	RE			RESET GAME
	D=N			SETS DIFFICULTY (LOOK AHEAD INDEX).
				LARGE N MAY CAUSE THE PROGRAM TO
				GET STUCK.
	W=N1,N2,N3,...		SET WIDTHS TO N1,N2,N3,...
	SK			SKIP A MOVE
	C=N1[,N2]		SET CLOCKS TO N1 OR SET WHITE'S CLOCK
				N1 AND BLACK'S TO N2 (SECONDS)
	P=N			SET MOVE NUMBER TO N AND ACCEPT
				A BOARD POSITION IN FORSYTHE NOTATION
	EX			EXIT TO RT11

2)	DEBUG COMMANDS		ACTION
	--------------		------
	T=N			PRINT TREE (ON LP:) TO DEPTH N
	PS			PRINT STATISTICS INFORMATION
	HI			PRINT EXECUTION HISTOGRAM

3)	SAMPLE MOVES		EXPLANATION
	------------		-----------
	P-K4			MOVE PAWN TO KING 4
	P*P			PAWN CAPTURES PAWN
	P#P			PAWN CAPTURES PAWN ENPASSANT
	OO			CASTLE KING SIDE
	OOO			CASTLE QUEEN SIDE
	P/K4*N/Q5		PAWN ON KING 4 CAPTURES KNIGHT ON
				QUEEN FIVE (SPECIFY FROM/TO SQUARES TO
				ELIMINATE AMBIGUITY)
	P-QR8=R			PAWN TO QUEEN ROOK 8 PROMOTE TO ROOK

4)	MESSAGES		EXPLANATION
	--------		-----------
	W.			WHITE IS TO MOVE
	B.			BLACK IS TO MOVE
	W. N			WHITE TO MOVE HAS N SECONDS REMAINING ON
				HIS CLOCK
	B. N			BLACK TO MOVE HAS N SECONDS REMAINING ON
				HIS CLOCK
	WHAT?			UNRECOGNIZABLE INPUT
	ILLEGAL MOVE		MOVE HAS LEGAL SYNTAX BUT IS NOT LEGAL
				FROM THE CURRENT BOARD POSITION
	AMBIGUOUS		TWO OR MORE POSSIBLE LEGAL MOVES EXIST
				WHICH MATCH THE TYPED MOVE ... MUST BE
				MORE SPECIFIC  (I.E. USE FROM/TO SQUARE
				DESIGNATIONS)
	CHECK			THE SIDE TO MOVE IS IN CHECK
	CHECKMATE		THE SIDE TO MOVE IS CHECKMATED
	STALEMATE		THE GAME IS A STALEMATE
	FLAG DROPPED		THE SIDE TO MOVE HAS RUN OUT OF TIME
	I RESIGN		THE COMPUTER RESIGNS

--------------------------------

	HOW TO GET STARTED.

	WHEN YOU INITIALLY RUN CHESS, YOU SHOULD FIRST TYPE:

	D=N		< N MUST BE IN (1,8) . THE DEFAULT IS D=2 >
	PB		< OR PW . TELLS THE COMPUTER TO PLAY BLACK >
	BD		< GET AN INITIAL BOARD DISPLAY >

	THEN YOU MAY ENTER YOUR MOVE. THE COMPUTER WILL THEN
	FOLLOW WITH A RESPONSE AFTER A SHORT PAUSE.