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Sankalp Gupta vs Florian Grafl
Rilton Cup (2016/17), Stockholm SWE, rd 2, Dec-28
Nimzowitsch Defense: El Columpio Defense (B00)  ·  1-0



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Kibitzer's Corner
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Apr-19-18  patzer2: For a Black improvement, I'd start early and ditch 2...Nf6 3. e5 Ng4 4. d4 ± (+0.97 @ 27 ply, Stockfish 8) in favor of 2...e5 = to ⩲ (+0.22 @ 27 ply, Stockfish 8).
Apr-19-18  nalinw: I think full points can only be claimed if the lovely in-between move (too chicken to try the German version without checking) 23. Nd4 is seen.

Clears the way for the check at g3 with a tempo.

Apr-19-18  wtpy: This was tough. I went with the third best line--3.08 per Stockfish. 22 Rg7 Kg7 23 Nd4 and I saw that 23 ..Rd4 was the best move but was just happy that black couldn't play 23.. Qe5 because of 24 Ne6+. Maybe I will have the same solution pattern as last week; I whiffed the problem from the So game but got the Friday, Saturday and Sunday problems. I have to start doing these problems in the morning when I have had coffee and am on the company dime. I should be sleeping!
Apr-19-18  Marmot PFL: Move order seems important as 21 Rxg7 Kxg7 22 Rg1+ Kh8 23 Nd4 allows Qb8 24 Qg3 Rg8 which fails for white. Easy to get carried away and overlook such details.
Apr-19-18  wtpy: CHcat,I am sure he will be GM soon; kid is only fifteen, which I guess makes him a late bloomer these days,
Apr-19-18  Dr. Funkenstein: hmm.. the key move to find today seems to be the intermezzo 23. Nd4 which clears the way for the queen to come to g3 with check taking the rook if the queen drops back to b8 and thus leaving white a piece up... I didn't calculate from the start 21. Rxg7 Rxf3 which a poster pointed out above... I think just Qxf3 though and after 22. Qxf3 Kxg7 then 23. Qg3+ covering the e5 pawn and after 23. ...Kh8 24. Rg1 threatening mate on g7 which cannot be avoided without major material loss
Apr-19-18  SpamIAm: <patzer2, agreed, although 2...e5 is hardly unique. He could've simply played 1...e5 in the first place, although it is true that this order of moves avoids the Kings' Gambit. If black wants to play a true "Other Nimzovich Defense" he should try 2...d6.
Apr-19-18  saturn2: <21 Rxg7 Kxg7 22 Rg1+ Kh8 23 Nd4 allows Qb8 25 Qg3 Rg8> If 25 e6 instaed there is the threat of Nc6 attacking queen and king
Apr-19-18  mel gibson: I saw that move.

Stockfish 9 says:

(21. Rxg7

(♖g1xg7 ♕b5-b4 ♕c3xb4 ♖f4xb4 ♖g7-g4 ♖b4xg4
h3xg4 ♔h8-g7 ♖d1-d7 ♖f8-e8 ♖d7xc7 h6-h5 g4xh5 ♔g7-h6 ♖c7xc6+ ♔h6xh5 ♖c6-c4 ♔h5-h6 ♔c1-d2 ♖e8-d8+ ♔d2-e3 ♔h6-g7 ♖c4-c6 ♖d8-a8 c2-c4 h7-h5 ♖c6-c7 ♔g7-f8 ♘f3-g5 ♖a8-e8 ♖c7-a7 h5-h4 ♖a7xa6 f7-f6 ♘g5-e4 ♔f8-g7 ♔e3-f3 ♖e8-d8 e5xf6+ e7xf6 ♘e4xf6 h4-h3) +7.45/29 36)

score for White +7.45 depth 29

Apr-19-18  catlover: 25 Rd1+ looks like a classic "spite check": "Well, all right then...looks like you're going to win. But watch THIS [plays Rd1+]...Hah! Put THAT in your pipe and smoke it!"
Premium Chessgames Member
  takchess: After checking if the queen couldnt be trapped, I looked at the rook take and f6 went with f6. This is what SF said after f6 1) +3.17 (21 ply) 21...exf6 22.e6 Qe2 23.Nd4 Qe5 24.e7 Re8 25.Rge1 Re4 26.Rxe4 Qxe4 27.Nxc6 f5 28.Qc4 Qxc4 29.bxc4 Bf6 30.Rd8 Rxd8 31.exd8=Q+ Bxd8 32.Nxd8 Kg7 33.Nc6 Kf6 34.Nb4 a5 35.Nd5+ Ke5 36.Nxc7 Kd4
Premium Chessgames Member
  Richard Taylor: Good game. The Nimzovich Defence can be tricky to deal with.

25. Rd1 is just a natural way. It is maybe played to shock the opponent into a possible error. Nothing wrong with that.

Nothing spite about it. Chess is a struggle.

Apr-19-18  Walter Glattke: Decisive material also with 21.Rg7 Rxf3 22.Qxf3 Qxe5 23.Rdg1 Qa1+ 24.Kd2 Rd8+ 25.Ke2
Apr-19-18  sombreronegro: Too passive in the center allowing white to crush the main defensive unit the bishop. 11 ... Be6 and its just a squeeze. Saving it once just allowed the g file to be opened where it was pinned and crushed. brutal
Apr-19-18  DrGridlock: 21 f6 and 21 Rxg7 are both winning.
The rook take is more direct, but after:

21 f6 exf6
22 Rxg7 Kxg7
23 exf6+ Kg8
24 Ne5 Rf5
25 f4 Rxf6
26 Nd7 Rd6
27 Rxd6 cxd6
28 Qg3+ Kh8
29 Nxf8

White is a up a knight for a pawn.

Sankalp Gupta - Florian Grafl

click for larger view

Apr-19-18  5hrsolver: <Marmot PFL: Move order seems important as 21 Rxg7 Kxg7 22 Rg1+ Kh8 23 Nd4 allows Qb8 24 Qg3 Rg8 which fails for white. Easy to get carried away and overlook such details.>

Very true.

Premium Chessgames Member
  agb2002: White has a knight for a bishop.

Black threatens Rxf5 and Rxf3-Bxe5 with chances along the dark diagonals.

White can use the open g-file to try and attack the black king. This suggests 21.Rxg7:

A) 21... Kxg7 22.Nd4

A.1) 22... Qxe5 23.Ne6+ Kf6 (23... fxe6 24.Qxe5+ + - [Q vs r+p]) 24.Qxe5+ Kxe5 25.Nxf8 wins decisive material (25... Rxf2 26.Rd7 Kf6 27.Rxc7, etc.).

A.2) 22... Qb8 25.Qg3+ Kh8 26.Qxf4 (26.Rg1 Rg8) + - [N].

A.3) 22... Qd5 25.Qg3+ as in A.2.

A.4) 22... Rxd4 23.Qg3+ (23.Rg1+ Rg4) 23... Kh8 24.Rg1 wins decisive material to avoid mate (24... Qf1+ 25.Rxf1 Rg8 26.Qe3, etc.).

B) 21... Rxf3 22.Qxf3 Kxg7 23.Qg3+ Kh8 24.Rg1 as in A.4.

C) 21... Qb4 22.Qxb4 Rxb4 23.Rg4 + - [N].

Premium Chessgames Member
  agb2002: 22.e6+ is much stronger than the immediate 22.Nd4 because after 22... Rxd4 23.Qg3+ Kh8 24.Rg1 Black also has 24... Rg4 (25.Qxg4 Qxe5).

Very instructive.

Apr-19-18  Mayankk: I had 21 Rxg7 Kxg7 22 f6+ exf6 23 exf6+ Kh8 24 some magical intermezzo move to transport White Queen to the attacking side, and then continue the attack.

Most likely a plan with the right themes but a lot of loopholes...

I didnít have the skill to realise that 22 e6+ f6 can still win. I thought it was a watertight defence from Black after that.

Apr-19-18  cormier:

click for larger view

Analysis by Houdini 4: d 22 dpa done

1. + / = (0.64): 9.Nc3 Rg8 10.Rg1 Rb8 11.b3 Qd7 12.Qe2 c5 13.dxc5 Qc6 14.Qe3 Qxc5 15.Qxc5 dxc5 16.Rd1 Bg7 17.Nd5 Rb7 18.Ke2 c6 19.Ne3 f6 20.Nc4 Bf5 21.Rd2 Kf7 22.Rgd1

2. + / = (0.52): 9.Qe2 Rg8 10.g3 Rb8 11.b3 Be6 12.Qxa6 Qd7 13.Nbd2 h5 14.0-0-0 Bh6 15.Kb1 Kf8 16.h4 Kg7 17.Qd3 Bg4 18.Rhe1 f6 19.exf6+ exf6 20.Kb2 Bf5 21.Qc4 Bg4 22.Rb1 Rge8

Apr-19-18  cormier: it could have transpose into an alekine with 3...Nd5
Apr-19-18  ChessHigherCat: : <Mayankk> 22) f6+ wins, too, but it's not as strong as the game line:

1) +5.57 (24 ply) 22. f6+ exf6 23.exf6+ Kg6 24.Rg1+ Kh5 25.Re1 Rg8 26.Re5+ Rg5 27.Nxg5 hxg5 28.Rxb5 cxb5 29.Qxc7 Rxf6 30.Qc5 Kg6 31.Qe3 h6 32.Kd2 h5 33.f3 h4 34.Qe4+ Kh6 35.Qd5 Kg6 36.c4 bxc4 37.bxc4 Re6 38.Kc3 Kf6

Apr-19-18  ChessHigherCat: That's the "feature length" version but white wins the Q for a rook and black has a resignable position after only a few moves:

22. f6+ exf6 23.exf6+ Kg6 24.Rg1+ Kh5 25.Re1 Rg8 26.Re5+ Rg5 27.Nxg5 hxg5 28.Rxb5

Premium Chessgames Member
  Penguincw: Since I was able to get something out of Wednesday's puzzle, I guess I should try Thursday's puzzle.

And I almost got it. The correct line is a line I saw, but rejected. 21.Rxg7 Kxg7 22.e6+ f6 23.Nd4 Rxd4. At this point, I would've played 24.Rg1+, but black has a saving move of 24...Rg4, and now the rook is in front. Material is equal, but the pawn structure most certainly isn't. Would be an interesting position.

I think I also considered 22.f6+.

I'll give myself half credit. 3.5/4 this week.

And I guess I better solve Friday's puzzle.

Premium Chessgames Member
  Marius: 21.Rxg7 Kxg7 22. Nd4 Qxe5 23.Ne6+ Kf6 24.Qxe5+ Kxe5 25.Nxf8 with a knight more.
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