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A136257 Number of possible plays on the nth move in Mirror Chess in which Black's play is always the mirror image of White (White must either mate or play such that Black can mirror the move). +0
1
1, 20, 433 (list; graph; listen)
OFFSET

0,2

COMMENT

By the number of possible plays on the nth move is meant the total number of legal lines of play for white under the rules of mirror chess at a depth of n moves from the standard initial position.

If white cannot play a legal move under the rules of mirror chess then the game is considered to be a draw.

LINKS

Jeremy Gardiner, Mirror Chess

CROSSREFS

Adjacent sequences: A136254 A136255 A136256 this_sequence A136258 A136259 A136260

Sequence in context: A068772 A130832 A109116 this_sequence A099278 A111158 A049382

KEYWORD

nonn,bref,more

AUTHOR

Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Apr 18 2008

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.


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