15 lines
		
	
	
		
			223 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			223 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
/*
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   ?- s([win(white)],P).
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P = 0.5 ?
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yes
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   ?- s([win(black)],P).
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P = 0.5 ?
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yes
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   ?- s([win(black),win(white)],P).
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P = 0 ?
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*/
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win(white) :- \+ win(black).
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win(black):- \+ win(white).
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win(white) : 0.5 ; win(black) : 0.5.
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