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Boris Katalymov vs Mikhail Kolpakov
Riga (1975)
Queen's Gambit Declined: Modern. Knight Defense (D51)  ·  1-0


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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Aug-17-11  alexrawlings: Hmm... bit disappointed I didn't get this one. Hopefully I'll recognise the pattern if I see it in another puzzle, or even better, OTB.
Aug-17-11  abuzic: <cyclon: <abuzic:>..... After your proposal 33. -Kb8 (As an answer to 33.Qg6), IŽd play 34.Qxf7 winning a Rook with NO counterplay for Black.>

Absolutely, after 33...Kb8 34.Qxf7 white will be a R up, but I was analyzing a line where mate is accelerated just for fun, white's position was so strong! Black took the short and due action here, 33...he resigned.

Aug-17-11  abuzic: <Dr. J: <abuzic: 33. Qg6 Qxf2 34. Qxf7 Black can try a trick here: 34...Qxe3+ 35.Kb2?? Qxd4+! [and draws]> (I have corrected the move numbering.)> Thanks you for the correction and comment. Sorry for the mess. The line I was referring to was actually 33...Qxf2 <34.Rxf7>, not <34.Qxf7> when the trick will not work and black will force draw by perpetual after 34...Qe1+ etc.

in the case of <33...Qxf2 34.Rxf7> black sets a small trap with 34...Qxe3+, and if 35.Kb2?? Qxd4+

<(the ?? in this position is because white still has clear win after 35.K to d1, b1 or c2 but black will have the chance to equalize, draw or trap the white king if white blunders 35.K to b2)>:

36.Kc1 (or Kc2) Qxc5+ and black may survive the position;

36.Ka2 Qd2+ 37.Ka3 Qc1+ 38.Ka2 draws (38.Kb4?? a5+ Kxa5 39.Qxc5+ Ka6 40.Qb5#); (38...Qe1+ also mates 39.Ka3 Qa1+ 40.Kb4 a5#).

36.Kb1 Qd1+ 37.Ka2 Qd2+ 38.Ka3 Qc1+ and draws

36.Ka3?? Qa1+ 37.Kb4 a5#

I hope I made my point correctly and clearly now?

Aug-17-11  magerk: 33.Qg6 Qxf2 34. Rh8+ Rf8 35. Qe8+ also leads to mate. No need to take the rook.
Aug-17-11  sevenseaman: <David2009> Crafty had a tepid day today. Its 33...Ne7 is inconsequential. Nevertheless I am grateful to see you post the link regularly. I rarely let it pass.

<Black could have tried 33...Qxf2! (much better than Crafty EGT's 33...Ne7?) which gives White a chance to go wrong. 34.Qxc6+! wraps it up quickly, but 34.Qxf7? seems only to draw after 34...Qe1+.>

Any departure by Black Q away from the 6th rank is calamitous. If Katalymov was brilliant in finding 33. Qg6, a tough move OTB, we can expect him to be good enough to find <33...Qxf2 34. Qxc6+ Kb8 35 Rh8+ 36. Rf8 Qb7#>, as suggested by the brilliant <morf>.

click for larger view

Hopes of a draw are only wishful speculation.

Premium Chessgames Member
  kevin86: Qg6!!. A unique back row mate theme!

Sudden death!

Aug-17-11  sevenseaman: < magerk: 33.Qg6 Qxf2 34. Rh8+ Rf8 35. Qe8+ also leads to mate. No need to take the rook.>

Good thinking!

Premium Chessgames Member
  Marmot PFL: In a game I'm not sure I would find 33 Qg6. It didn't really jump off the board at me like some of the key moves.
Aug-17-11  dadoktor: I spotted Qg6 immediately deflectin either the queen or the rook from protectin the back rank mate. Easier than yesterday for me
Aug-17-11  BOSTER: <dzechiel> <I'm sure black resigned after the key move (Qg6)>. I'd prefer to play this game one move after, because many greedy players can play 34.Qxf7.
Aug-17-11  MiCrooks: sevenseaman: on your Nc8 simplest is need for the Knight to dance :) just win the Rook outright as Black has to trade Queens to avoid Qb7++.
Aug-17-11  kramputz: Got it in 10 seconds.....Qg6
Aug-17-11  IRONCASTLEVINAY: deflection theme easiest ever. found it in less than 7 seconds (maybe less).
Aug-17-11  sevenseaman: Tolosa y Carreras 1890

click for larger view


White to move and mate in two moves.

Aug-17-11  Schach and Awe: It took me about 5 minutes to convince myself the Qg6 was irrefutable. The position of the N on c5 holds the key. Wondering how Black managed to get himself in such a position. Scrolling back through the game I noticed the R arrived on the 7th rank on White's 23rd move, and was never asked to leave. This could have occurred as early as Black's 24th move with Rd7, leading White to either exchange Rs (d7 or h7) or a retreat back along the h-file. After Kb8, this option lapsed, as the marauding a-pawn's attack on the N made it unplayable. A lesson from Nimzo's in depth analysis of the power Rooks can hold on the seventh rank.
Aug-17-11  HowDoesTheHorsieMove: I found Qg6, but the response I had in mind for Qxf2 would have drawn. No cookie for me.
Aug-17-11  estrick: A retort:
Gee, I wonder how so many "idiots" are able to get this kind of advantage over you?

<sfm> <I knew a guy who, in a situation like after 33.-,Qxg6 34.Rh8+ would interpose queen, rook and knight - and after Rxc8# he'd say something like "A rook and a knight ahead, eh? Well, with that material advantage any idiot can win!">

Premium Chessgames Member
  DarthStapler: Got it
Premium Chessgames Member
  morfishine: <sevenseaman> Good imagination with the <33...Nc8> defense, very good indeed
Aug-17-11  CHESSTTCAMPS: Material is even, but the active rook on the 7th gives white a winning advantage. Most likely, black just played 32... R(8)f7 to counter the threat of 33.Rxa7+ (forcing mate in 5), but this left the back rank unguarded.

33.Qg6! is the perfect way to exploit this weakness:

A) 33... Qxg6 34.Rh8+ forces mate.

B) 33... Rf8 34.Qxf6 Rxf6 35.Rh8+ wins.

C) 33... Qxf2! 34.Rh8+! Rf8 35.Qe8+ Nc8 36.Qxc8+ Rxc8 37.Rxc8#

D) 33... Kb8, Nc8, a4 etc 34.Qxf7 wins.

The C line looks like the one defensive continuation worth trying in view of the trap 34.Qxf7?? Qe1+ with a perpetual. Time for game review....

Aug-17-11  CHESSTTCAMPS: I overlooked 34.Qc6+ in the C line (pointed out previously) which is quicker and more direct.
Aug-17-11  rusticbull: very easy . . . in less than 5 seconds
Aug-17-11  M.Hassan: <simonWebbTiger: 11...Qxg2 runs into 12.0-0-0 surely? Black's Queen looks to be in trouble.>

True. But look at this line:
11.Nh3 Qxg2
12.0-0-0 Ndf6
13.Rdg1 Bxh3
14.Rxg2 Bxg2
15.Rh2 Bf3

click for larger view

This is the position after move 15. Black has lost his Queen but appears to be ahead in material count.

Aug-17-11  hedgeh0g: A pretty straightforward back-rank combination. 33.Qg6! hits the rook and exploits Black's vulnerable back rank. The multiple threats of taking the rook or exchanging queens and delivering checkmate should be enough to force resignation. 33...Qxf2 fails to Rh8+ Rf8 Qe8+.
Aug-17-11  TheBish: B Katalymov vs M Kolpakov, 1975

White to play (33.?) "Medium/Easy"

I realized pretty quickly that this was a back-rank problem. The White rook can't play Rh8+ (without losing it), but the Black queen is partially overloaded, guarding the rook on f7 as well as stopping the rook from checking.

33. Qg6!

This nice move exploits the situation. I said the queen was partially overloaded, because even if 33. Rh8+ were playable (like if another rook was backing it up), Black could play 33...Rf8. But if now 33...Qxg6, 34. Rh8+ is possible, leading to forced mate after a few interpositions (three if Black chooses).


Nothing else is any better. The rook needs to guard the queen (33...Rxh7 allows either 34. Qxf6 or better yet, 34. Qe8+! leading to mate), and 33...Qxf2 opens the White queen's path on the 6th rank to the c-pawn, i.e. 34. Qxc6+ Kb8 25. Na6#.

34. Qxf6 Rxf6 35. Rh8+ Rf8 36. Rxf8+ Nc8 37. Rxc8#.

Of course, Black will resign long before this. Probably on move 33!

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