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| (1) Posted by Michael McDowell [Friday, Jun 30, 2017 07:48] |
Versions of a helpmate
F.Abdurahmanovic, M.McDowell and C.J.Feather
2nd Prize The Problemist 2006
 (= 4+5 )
Helpmate in 3 (2 solutions)
1.Rb5 Bb3 2.Rb8+ axb8S 3.Rc5 Sf5
1.Rb6 Bg4 2.Rb8+ axb8Q 3.Rc6 Qf8
Version
 (= 3+7 )
Helpmate in 3 (2 solutions)
1.Rb4 Sf6 2.Rb8+ axb8S 3.Rd4 Sbd7
1.Rb5 Sg3 2.Rb8+ axb8Q 3.Rd5 Qh8
Improvement or not?
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| (2) Posted by Arpad Rusz [Friday, Jun 30, 2017 09:22] |
Because of the f5 square in the second solution, I don't think it is an improvement.
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| (3) Posted by Miodrag Mladenović [Friday, Jun 30, 2017 09:53] |
Regardless of square f5 and the fact that now it's not a model mate I like more version. I think it's an improvement because white play is more similar between solutions (1st white move guards square(s), 2nd move is promotion and third move is checkmate by promoted piece). Also it's always nice to have corner mate in helpmate.
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| (4) Posted by Frank Richter [Friday, Jun 30, 2017 10:40] |
I prefer original position. One piece less, lighter impression, and solutions are also identically in motivation of moves.
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| (5) Posted by seetharaman kalyan [Friday, Jun 30, 2017 13:55]; edited by seetharaman kalyan [17-06-30] |
I prefer the version... two different knight moves and both mates by the promoted piece make a better impression.. AND a whole white piece less !
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| (6) Posted by Jean-Marc Loustau [Friday, Jun 30, 2017 17:59] |
My personal taste: without no doubt, I prefer the original version.
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| (7) Posted by Nikola Predrag [Friday, Jun 30, 2017 19:48] |
The most thematic original feature is reciprocal anti-dual tempo-play by bRs. Other features look pretty common and the personal tastes may see them differently, so it's wise to respect the authors' preferences.
Economy might be somewhat "objectively" discussed and the "mechanical play" of "extra wB" in the original is not economical, but someone will see it as nice.
What I like in the version is the try which fails due to line opening/closing:
1.Rb4 Sf6? 2.Rb8 axb8Q 3.Ra5+?! Qb2#???
This introduces the need for tempo-losing play.
And with bQf4 instead of bP, White would lack a tempo move:
1.Rb4 ?? 2.Rb8 axb8Q/S 3.Qe4 Qh8/Sc6#
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