[Retros] Die Schwalbe Heft 224: correction to #13336
liskov at im.bas-net.by
Thu May 24 09:17:06 EDT 2007
The triplet (c) in my problem #13336 has, unfortunately,
an unintentional solution. Correction: (c)=(b) & bPe7->d6
(instead, stipulated "2 solutions" in the published version
of (c) would also make sense).
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