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Anatolij Bannik vs Viktor Korchnoi
URS-ch21 (1954), Kiev UKR, rd 13, Jan-26
Alekhine Defense: Saemisch Attack (B02)  ·  1-0
ANALYSIS [x]

FEN COPIED

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find similar games 6 more A Bannik/Korchnoi games
sac: 21.Rh7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-20-16  WorstPlayerEver: 30. Qf4 makes things a lot easier :)
30... Kg6 31. Bd3 Kg7 32. Qg5 Kf8 33. Bg6 and now Black has to sacrifice their Knight 33... Nf7 to prevent mate.
Apr-20-16  WorstPlayerEver: PS so 29... Nd8 is a bit of a blunder

29... e5 looks slightly better.
30. Qh4 Kg6 31. Bd3 Kf7 32. Qh7 Kf6 33. Bc4 Rh8 34. Qf7 Kg5 35. Qb7 Na5 36. Qg7 Kf5 37. Qf7 Kg5 38. Bd5 Raf8 39. Qg7 Kf5 40. Qg4 Kf6 41. Qe6 Kg5 42. Qe7 Kf4 43. Qd6 and Black will eventually lose their Knight. Any more peas, someone? ;)

Apr-20-16  stacase: Fun King chase.
Apr-20-16
Premium Chessgames Member
  Appaz: Definitely not an easy/medium. I found the correct first four moves, but gave up since I don't have the strength to evaluate the position as won.

It shouldn't take master strength to solve a medium POD.

Apr-20-16  dfcx: The black king is exposed sitting alone. This gives white a chance to force it into the open.

21.Rh7+ Kxh7 22.Qxf7+

A. 22...Kh8 23.Rh1+ Qh5 24.Rxh5+ gxh5 25.Bd3 and mate next

B. 22...Kh6 23.Rh1+ Qh5 (Kg5? 24.f4#) 24. Qf4+ Kg7 25.Rxh5 gxh5 26.Qg5+ and white should win the end game

Apr-20-16
Premium Chessgames Member
  thegoodanarchist: Game was played before Korchnoi got really good.
Apr-20-16  saturn2: After the first two moves 21 Rh7 Kxh7 and 22 Qf7+ Kh6 white has time for 23 f4. Now if black interposes the Queen on h5 after the rook check then BxQ.
Apr-20-16
Premium Chessgames Member
  thegoodanarchist: <Appaz: Definitely not an easy/medium. I found the correct first four moves>

I would count that as a solution. The combination is played to gain some advantage, but the side that is weakened will sometimes play on and on. If it takes another 100 moves to force mate I don't think finding them all is necessary, even if it were a Sunday.

Apr-20-16  YetAnotherAmateur: So after the initial combination, white's traded 2 rooks for a queen and a pawn. While I admit it's kinda nifty, it also doesn't provide a clear advantage (as evidenced by the fact that the game went on another 14 moves).

What I think really kills Korchnoi is his 29. ... Nd8, which effectively puts his rooks and knight out of play.

Apr-20-16  mcguigan97: I got the first 7 white moves ... after that it was beyond my abilities...
Apr-20-16  AlicesKnight: <saturn2> If 23.f4, what happens after 23......Rf8? If 24 Rh1+ Qh5, a WB capture allows Black to capture the WQ.
Apr-20-16  saturn2: <AlicesKnight> White can play 25 Qd5 But I see that white does not get Queen for rook. Instead it results in Q+P vs 2R and a advantegous position for white.
Apr-20-16
Premium Chessgames Member
  Appaz: <<thegoodanarchist> <Appaz: Definitely not an easy/medium. I found the correct first four moves> I would count that as a solution.>

I doubt if I would have played those move in a game even if I had seen them. The unclear position (in my world) would probably made me choose a safe and weak line instead.

Apr-20-16
Premium Chessgames Member
  Castleinthesky: I'll give myself credit because I saw the combination at least until the 5th move (afterwards my eyes misted and my brain exploded). A good example of "distraction."
Apr-20-16
Premium Chessgames Member
  kevin86: White sacs the rook to be able to chase the opposing king while black's forces are parked.
Apr-20-16  Chess Dad: <I got the first 7 white moves ... after that it was beyond my abilities...>

After the first 7 moves, white has multiple moves that win.

At move 28, Bd3 forces Kd7, then Bf5 skewers the King to get the rook. It's not quite as good as what was played, but it's still a winning advantage. (+2.16)

But then again, what was played wasn't quite as good as 28. Qh3+. I have that one at +5.1 vs about +3.4 for 28. Qg4+.

Apr-20-16
Premium Chessgames Member
  Jimfromprovidence: Just an observation, but it's cool to see some newer kibitzers posting today.

In that vein, <CliftonJ> has worthwhile posts explaining why 20 Rh7+ directly does not work.

Apr-20-16
Premium Chessgames Member
  Marmot PFL: easier than yesterday i think.
Apr-20-16  Est2002: If this was supposed to be easy/medium puzzle then I don't think I'll have a chance tomorrow!
Apr-20-16  stst: A R-sac may do it:
21.Rh7+ KxR (else, only move is ......Kg8, but 22.Qxf7#) 22.Qxf7+
(A)
22................Kh6
23.Rh1+ Kg5
24.f4#
(B)
22.................Kh8
23.Rh1+ Qh5 (only defense)
24.RxQ and Black is Q-less gxR
25.Qxh5+ etc

Another route goes with a Q+ first:
21.Qh6+ Kf6
but this will let the K out and the line will go longer, esp. when the K slips into d7 eventually.

Apr-20-16  stst: Got it - the Black Q-less line... the older Korch resisted quite a long wind after going Q-less!!
Apr-20-16  Moszkowski012273: White kinda lost the thread toward the end here.
Apr-20-16
Premium Chessgames Member
  CHESSTTCAMPS: Black is up N+P for a bishop, but the black king is badly exposed with white controlling the open h-file. How does white finish? On 21.Qh6+(?) Kf6 the king is well-protected by the BQ and the king can slip back behind the lines at d7 or e7 as necessary.

Bu 21.Rh7+! Kxh7 22.Qxf7+ pulls the black king to the edge where it is most vulnerable:

A.22... Kh8 23.Rh1+ Qh5 24.Rxh5+ gxh5 25.Bd3 any 26.Qh7#

B.22... Kh6 23.f4! (my first choice, the forcing 23.Rh1+ runs into tough defense with Qh5 24.Rxh5+ Kxh5 [but not gxh5 25.Bd3 forcing mate] 25.f4+ Kh6) Rf8 24.Rh1+ Qh5 25.Rxh5+ gxh5 26.Qxh5+ Kg7 27.Bd3! Rh8 (Rf6 28.Qh7+ Kf8 29.Qh8+ wins a rook) 28.Qg6+ Kf8 29.Bc4 Nd8 30.f5 Rc8 31.Be6 Rc7 32.c4 and it appears that black gets squeezed into zugzwang.

Ok, I'm either missing something much easier or this problem is seriously underrated.

Apr-20-16
Premium Chessgames Member
  CHESSTTCAMPS: Now I see that my "improvement" 23.f4 fails to 23... Qe3+ 24.Kb1 Qh3
Apr-21-16  TheBish: <CHESSTTCAMPS: Now I see that my "improvement" 23.f4 fails to 23... Qe3+ 24.Kb1 Qh3>

Yes, I was thinking the same thing, that I had found an improvement over the game with the preparatory 23. f4 to win more material, but then I saw Black's queen check (always check for checks!) which spoils it.

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