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A102784
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In chess, the number of "at home" dual-free proof games in n plies.
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1
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1, 0, 0, 0, 0, 0, 0, 0, 10, 41, 116, 335, 1111, 2619, 6067, 12788, 26692
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OFFSET
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0,9
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COMMENTS
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Among all the proof game problems counted in A090051, this is the number of problems where all the surviving pieces are apparently on their start squares.
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LINKS
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CROSSREFS
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KEYWORD
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hard,nonn,fini
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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