Henri Weenink vs Borislav Kostic (1927)

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Henri Weenink vs Borislav Kostic
London Olympiad (1927), London ENG, rd 15, Jul-29
Spanish Game: Schliemann Defense (C63) · 0-1

ANALYSIS [x]

FEN COPIED

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Sep-28-18		offramp: White can't play 21.Rf1 because of 21...Bh3!-+.

Sep-28-18		al wazir: My move was 18...Rxg2+ 19. Kxg2 Qh3+. It doesn't win: 20. Kg1 Rxf3 21. Rxf3 Qxf3 22. Rf3. Now black has to use a move to avoid a back-row mate.

Sep-28-18		FSR: Very nice! I saw the possibility of 18...R8xf3! but it didn't seem to lead anywhere. I overlooked 20...Qd2! when it turns out that White is remarkably helpless.

Sep-28-18		Walter Glattke: I had 18.-Nd4 19.cxd4 Rxg2+ 20.Kxg2 Qh3+ 21.Kg1 exd4 22.Nxd4 Qg4+ 23.Rg3 Qxd4+ 24.Kg1 Qf2 or 18.-Nd4 19.Nxd4 Rxg2+ 20.Kxg2 exd4 21.Rg3 Qxd2+ 22.Kg1 Qxe1 better 19.Kxf2 Nxb3 20.Bxd7 Nc5 only advantage for black

Sep-28-18		nalinw: Yes - 18. .... Rxg2+ is a real red herring and 20... Qd2 is a impossible to see quiet move

Sep-28-18		Granny O Doul: I thought White was Weenink?

Sep-28-18		agb2002: Black is one pawn ahead. The rook on f2 is trapped. Black has Rxg2+, R2xf3 and R8xf3. Most promising seems to be 18... R8xf3: A) 19.gxf3 Qxh2#. B) 19.Rxf3 Rxf3 B.1) 20.gxf3 Qd2 B.1.a) 21.Rf1 Bh3 22.Rf2 Qe1+ 23.Rf1 Qxf1#. B.1.b) 21.Qb1 Bh3 and mate in two. B.1.c) 21.Qf7 Qxe1+ 22.Kg2 Qd2+ B.1.c.i) 23.Kg1(3) Qg5+ 24.Kf2 Qe7 wins a piece. B.1.c.ii) 23.Kh1 Qc1+ 24.Kg2 Qg5+ transposes to B.1.c.i. B.1.c.iii) 23.Kf1 Bh3+ 24.Kg1 Qg2#. B.2) 20.Bxc6 Qd2 B.2.a) 21.Rf1 Qe3+ and mate in two. B.2.b) 21.Bxf3 Qxe1#. B.2.c) 21.Rb1 Qf2+ 22.Kh1 Qf1+ 23.Rxf1 Rxf1#. B.2.d) 21.Qb1 Bxc6 wins a piece (22.gxf3 Bxf3 23.Re2 Qxe2). B.2.e) 21.gxf3 Qxe1+ 22.Kg2 Bxc6 - + [b+p]. C) 19.Bxc6 Rf1+ 20.Rxf1 Qxe3+ and mate in two.

Sep-28-18		Walter Glattke: B1d) 21.Bxc6 Bh3 22.f4 Qxe1# B1e) 21.Rd4 Bh3 22.Rg4 Qe1#

Sep-28-18		An Englishman: Good Evening: "I Thought I Was Weenink!"

Sep-28-18		leRevenant: Who said Weaklink ?

Sep-28-18		malt: Have 18...R8:f3 19.R:f3 R:f3 20.Qd5 (20.gf3 Qd2 21.Rf1 Bh3 22.Rf2 Qe1+ 23.Rf1 Q:f1# ) 20...Rf6 21.Bc4 Be6 22.Qe4 Rf4 23.Qe2 B:c4

Sep-28-18		manselton: I missed that 18...Rxg2+ 19.Kxg2 Qh3+ 20.Kg1 Rf6 loses to 21.Nxe5! However in this line 20.Kh1 Rxf3 21.Rxf3 Qxf3+ 22.Kg1 Qg4+ and Be6 is better for Black (provided he avoids 22...Bh3?? 23.Bxc6!)

Sep-28-18		patzer2: For today's Friday (18...?) puzzle, I looked at 18...Nd4? as my first candidate move, but dismissed it as Black is on the verge of losing after 18...Nd4? 19. cxd4 exd4 20. Kxf2 dxe3+ 21. Rxe3 ± (+1.25 @ 42 ply, Stockfish 9). Though I rejected 18...Nd4? 19. cxd4 exd4 (diagram below) as allowing White too much advantage after 20. Kxf2 ±, click for larger view I missed (diagram above) White's much stronger option 20. Qf7! +- (+2.82 @ 42 ply, Stockfish 9) with decisive advantage. I finally settled on 18...R8xf3 19. Rxf3 Rxf3 20. gxf3 Qg6+? = (0.00 @ 30 ply, Stockfish 9) which is only good for equality. What I missed is 20...Qd2!, which wins due to the threat 20...Qd2! 21. Rf1? Bh3 -+ (mate-in-five, Stockfish 9) or the game continuation 20...Qd2! 21. Qf7 Qxe1+ 22. Kg2 Qd2+! 23. Kh1 Qc1+ 24. Kg2 Qg5+ 25. Kf2 Qd8 -+ (-5.95 @ 33 ply, Stockfish 9). P.S.: So where did White go wrong? The clear losing move was 17. Rfe1?, allowing 17...Rxf2 -+ (-5.53 @ 29 ply, Stockfish 9). Instead, 17. Bxc6 Bxc6 18. Re2 ⩱ (-0.45 @ 34 ply, Stockfish 9) would have kept White in the fight. Earlier in the game, instead of the passive 10. Nd2?! = to ⩱ (-0.32 @ 31 ply, Stockfish 9) White could have done better with the active 10. Bc4+ = to ⩲ (+0.32 @ 31 ply, Stockfish 9).

Sep-28-18		PJs Studio: I really like the second Qd2+ and Qc1. Very nice

Oct-05-18		leRevenant: déjà-vu

Oct-05-18		mel gibson: White's move 17. Rfe1 was a blunder. It's obvious that the f2 pawn could not be left defenseless. Stockfish 9 says the correct move was 17. Bxc6 (17. Bxc6 (♗b5xc6 ♗d7xc6 ♖e3-e2 g7-g5 d3-d4 ♕h6-h4 d4-d5 ♗c6-d7 c3-c4 ♗d7-f5 c4-c5 b7-b6 c5xd6 c7xd6 ♕b3-e3 ♗f5-g6 ♖f1-e1 ♕h4-f4 f2-f3 ♗g6xc2 ♖e1-c1 ♗c2-g6 ♖c1-c7 ♖f8-f7 ♖c7-c6 ♔h8-g7 ♕e3xf4 g5xf4 ♘d2-e4) -0.50/26 ) score for White -0.50 depth 26.

Oct-05-18		gofer: Pointless repetition of an earlier POTD... ...worse than providing none.

Oct-05-18		jrredfield: Looks like current POTDs are being recycled from the previous week's POTDs.

Oct-05-18		swclark25: I went with 18...R2xf3 and wound up in same position to 20.gxf3. But I went with 20...Qg5+ which was not near as nice as 20...Qd2. I appreciate great moves by great players. The game continues to humble me.

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