Changes

</pre>

As reported by [[Chrilly Donninger]] <ref>[[Chrilly Donninger]] ('''1999'''). ''Computer machen keine Fehler''. [[Computerschach und Spiele|CSS]] 2/99, [http://www.mustrum.de/chrilly/keine_fehler.pdf pdf] (German)</ref>, Nimzo happily sacrificed the knight with 61... Nxb7, winning the game due to a [[Engine Testing#bugs|bug]]. A winning score was given, applying the [[Rule of the Square]] for its black passer. Instead, as intended, with White having no pieces to make the e-pawn [[Unstoppable Passer|unstoppable]], the winning score was enabled by Black without pieces <ref>[http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=477389&t=44706&sid=8b10031146b44f86ac4c4a129debf451 Your best bug ?] by [[Ed Schroder|Ed Schröder]], [[CCC]], August 06, 2012</ref>!

3n4/KP6/3k2p1/4p2p/8/2N3P1/8/8 b - - 0 61