Problem 41619

[tomohawk]

Sorry if this has already been mentioned. I looked through the threads and didn't find it.

This problem has an alternative solution. Although the correct solution is convincing, a move like 1...Kh4 is also totally winning, imo. White has no way to prevent Black from putting his K on g3 and pushing the kingside pawns.

[richard]

Yes, this is one of the examples where table bases would help, I'm hoping to have them in play for the next problem set verification run (I'm still generating new problems without the table bases).  It's a pity as the underpromotion is nice, but that does look like a legitimate alternative (although its still over 20 moves away from translating to mate [according to nalimov, and that is from the final position in the computer line for that branch (which is down to 6 pieces)]).  Unless others disagree I'll disable this one.

Richard.