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MatPlus.Net Forum Threemovers Knights galore
 
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(1) Posted by Michael McDowell [Sunday, Jul 17, 2011 20:14]

Knights galore


I included this three-mover in an article in the May Problemist, and simply mentioned the theme - four Holst promotions. It struck me later that I should have commented further on what is a phenomenal problem. I could imagine having the idea - "let's make a three-mover where four black pawns promote to knight and in response four white pawns promote to knight", but to get from the initial conception to a sound matrix where the thematic variations show complete unity of strategy, seems to me a quite astounding achievement.

The 1st prizewinner must have been quite a problem! Can anyone quote it? Who was the judge?


L.I.Loshinski and G.Golubev
2nd Prize Tchigorin MT 1938

(= 12+10 )

Mate in 3


1.Rhh4 (>2.Sb6+ or 2.Sf6+ Kc5 3.Sxb3; 2…Ke5 3.Sf3)

1…a1S 2.e8S > 3.Sf6; 2…Sxc7 3.Rd4; 2…e5 3.f8~
1…c1S 2.b8S >3.Qxc6
1…e1S 2.f8S >3.Bxe6
1…g1S 2.a8S >3.Sb6
 
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(2) Posted by Dan Meinking [Sunday, Jul 17, 2011 20:34]

There's a 1st Prize listed for the "Chigorin MT" here...

http://www.saunalahti.fi/~stniekat/pccc/WCCT-9_announcement.doc

... but the year given is different.
 
 
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(3) Posted by Bojan Basic [Monday, Jul 18, 2011 02:39]; edited by Bojan Basic [11-07-18]

It seems that this is is the winning problem.

Рафаэль Кофман
1st Prize, Chigorin MT, 1938
(= 9+10 )
#3 (9 + 10)

1.Qd4 ! [2.Rd8+]
1...Bd5 2.Bb7 [3.Ra8#]
1...Rd5 2.Bb5 [3.Ra8#]
1...Qd5 2.Bc4 [3.Ra8#]
1...Sd5 2.Be2 [3.Ra8#]
 
   
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(4) Posted by Michael McDowell [Tuesday, Jul 19, 2011 19:54]

Thank you Bojan. Another very fine problem, but I would have placed the joint above it.

Dan, There have been at least three Chigorin MTs, at the end of the 1930s, 40s and 50s.
 
   
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(5) Posted by seetharaman kalyan [Monday, Jul 25, 2011 20:51]; edited by seetharaman kalyan [11-07-25]

There can be two views on the placing obviously. In Loshinski problem, you find one variation, others follow, there is the symmetry also. The white second moves in Kofman problem are much more subtle and interesting. I could not readily find the logic of each of the variations.
 
 
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MatPlus.Net Forum Threemovers Knights galore