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Vassily Ivanchuk vs Alexander Morozevich
Reggio Emilia (2011), Reggio Emilia ITA, rd 9, Jan-06
Nimzo-Indian Defense: Classical Variation (E32)  ·  1-0



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Given 9 times; par: 149 [what's this?]

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Kibitzer's Corner
Jan-06-11  nigelsnoru: Wow, a B+N mate. Now I am lamenting even more that Dvoretsky and Silman chose to ignore this mate in their endgame manuals. Seirawan has it but neglects RBvR and RNvR.

Is there not a comprehensive endgame manual anywhere?

Jan-06-11  nigelsnoru: Whoops, sorry, the one Dvoretsky skips is the two bishops. My bad.
Jan-06-11  Sparta: Haha making Ivanchuk prove B+N mate. Don't see too many of those.

Maybe 15. ... g5 was too much. Seems like it just drove white's DSB to a better diagonal and presented targets for white in the endgame.

Premium Chessgames Member
  4tmac: Leave it to Ivanchuk to play like a freakin TB! In fact, after 58. ..Kf1?? (j/k) he shaved a couple off.
Premium Chessgames Member
  HeMateMe: hmm, the game seemed even till the endgame, the weak black b pawn gets picked off. Seems Short didn't look too closely at the resulting endgame after the swap of the pieces.
Premium Chessgames Member
  tamar: Seems <HeMateMe> didn't look too closely at the names at the top of the game :-)
Jan-06-11  Ulhumbrus: After 29...f5 Ivanchuk manages to show- or at least to suggest- that his bishop is thr superior of either Black knight.

<nigelsnoru: Wow, a B+N mate. Now I am lamenting even more that Dvoretsky and Silman chose to ignore this mate in their endgame manuals. Seirawan has it but neglects RBvR and RNvR. Is there not a comprehensive endgame manual anywhere?> There is Fine's basic chess endings and there is Karsten Muller and Lamprecht's manual on the endgame. Fine's book was a classic in its day and Botvinnik described it as "a brilliant piece of work". However Karsten Muller and Lamprecht's book may be the best book available at present, and it gives you one of the methods of mating with the bishop and knight, the Philidor method, whereby the Knight in its movements describes a "big W" ( as in "It's a mad, mad, mad, mad world". In the present game the big W is inverted, as the black King is on the bottom rank of the board, and the big W consists of the manoeuvre Nf2-e4-c2-b2. A second method is the "Deletang" method and you will find it in the wikipedia, whereby the opposing King is imprisoned in three successively smaller triangles.

Jan-07-11  thickhead: 56...Kf1 is not the losing move but only quick way to lose. As <Ulhumbrus> pointed out big W method or "delatang" method are available for winning systematically. the following site gives you full solution.

Jan-07-11  swr: <nigelsnoru>: Capablanca covers it in his manuals. I can't remember what they're called, maybe somebody knows.
Jan-07-11  wanabe2000: <Sparta> I think you are rightt. Moro seemed to go for the ending and Ivanchuk was up to the task. Difficult ending for sure but at this level all should be able to figure it out. How about Judit Polgar executing the mate blindfolded.

Ljubojevic vs Judit Polgar, 1994

Jan-08-11  Ulhumbrus: A correction to my previous message. I should have said that in the present game the big W consisted of the manoeuvre Nf2-e4-d2-c4-b2.
Jan-09-11  notyetagm: Ivanchuk vs Morozevich, 2011

43 ?

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43 h2-h4! <pin: h6-f4>

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Game Collection: BACKWARD PIN: APPLIED BALEFUL INFLUENCE (ESS) 43 h2-h4! White h6-bishop pins Black g5-pawn to Black f4-knight

Jan-13-11  Dupin: There are two ways to mate with knight and bishop that I know of. One is the "W-method" like in this game. (Or a inverted W, as someone here mentioned). The other is the Deletang Method, about which there is a GREAT video on youtube:

I recommend it to everyone. Even I am capable of executing mate with knight and bishop after this video.

May-07-11  drnooo: At this point you can almost say that This is Moros resignation from chess: his final joke. After this he seems to be saying, okay Ive had enough of this silly game. Maybe Ill take up cricket.
Premium Chessgames Member
  NM JRousselle: Is Black really a GM?
And he kept playing with a King vs Knight and Bishop? Can it be that he did not know it was possible to mate with Knight and Bishop?

What else explains the continued play?

May-07-11  MaxxLange: <NM JRousselle> White may have been very short on time, giving Black some practical hope, or Black may have decided to play to mate out of whimsy, or just to give the spectators some fun.

I find any of those explanations more likely than the idea that Morozevich did not know that mate can be forced with B + N!

Premium Chessgames Member
  Fusilli: <NM JRousselle: Is Black really a GM?>

Of course he is, just like Epishin: R Kempinski vs Epishin, 2001.

I think it is okay to give Ivanchuk the opportunity to show off his technique. Or to give that as a gift to the spectators. Just because this endgame is so rare and it does require technique, as proven by Epishin. Most spectators should enjoy guessing Ivanchuk's moves.

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