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Promotion problem in 1964

 
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tacman1123
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Joined: 13 Sep 2007
Posts: 1

PostPosted: Thu Sep 13, 2007 6:22 pm    Post subject: Promotion problem in 1964 Reply with quote

http://www.chessproblems.com/prob.php?id=1964

Look like it won't animate or show the correct solution.

I believe the correct solution is Qa1, bxa1=anything, Rd-c1#. However, the animation shows R-c3 after Qa1.

Trying 1) Rd-c1 is followed by bxc1 (no promtion), then Qxb3#, BUT there's no promotion on black's move. IF the promotion is to a Knight, then there's an immediate check.

So, it looks like there's a promotion issue as well as a solution issue in this particular problem.

Cool site, thanks for creating and maintaining it!

Tac
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mrmip
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Joined: 05 Nov 2005
Posts: 230
Location: Finland

PostPosted: Fri Sep 14, 2007 2:29 am    Post subject: Reply with quote

Yes, it seems that way. Leaving Caissa to handle a two mover (i.e. no solution given by the submitter), which she should be more than capable herself, runs into problems in a promotion case. "She's got nothing suitable to wear" - and even may not promote anything, especially if
(a) An underpromotion is called for
(b) If none of the promotions help

I think this is something (along with castling bug) Adum or other applet people should look into and repair. Rolling Eyes
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