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Georges Koltanowski vs Winston Churchill Doby
"We Will Fight Them On The D File" (game of the day May-08-2021)
Blindfold simul, 8b (1966) (blindfold), Los Angeles, CA USA
Queen Pawn Game: Colle System. Anti-Colle (D04)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
May-08-21
Premium Chessgames Member
  Phony Benoni: Noble words, but he wound up surrendering.
May-08-21
Premium Chessgames Member
  An Englishman: Good Evening: Wondering if Black would have had more compensation for his pawn deficit with 17...cxd4; 18.exd4,Qe2.
May-08-21  Brenin: <An Englishman>: After 17 ... cxd4 18 exd4 Qe2 19 Qxe2 Rxe2 20 Nc4 Bb8 21 a4, Black's compensation is minimal. He has a nice square d5 for his N to block the d-pawn, and (for the time being) he has a R on the 7th, but it isn't threatening much there. I think White can anticipate a comfortable endgame win.
May-08-21  Messiah: Terrible!
May-08-21  goodevans: <An Englishman> That's probably what I'd have played in that position although objectively I don’t think it makes much difference. It depends on whether you see the IQP as a strength or a weakness for White.

After <17...cxd4 18.exd4> I'd probably continue <18...Qd7> with a mind to establishing my N on d5 and maybe doubling Rs on the e-file but either way Black doesn’t really have full competition for the P he lost earlier and faces a hard slog even with accurate play.

May-08-21  goodevans: * compensation
May-08-21
Premium Chessgames Member
  OhioChessFan: 24...Nd2 is an instructive error. The easiest way to respond to a Knight fork is to move one piece with check, then the other piece attacking something. This is a textbook example. I think Black missed that moving the Knight opened the diagonal for White's Queen to give check.
May-08-21  Ironmanth: Kolty!
May-08-21  goodevans: I reckon that Black thought that the threat of <24...Nd2> meant White couldn't play < 24.Bb2> otherwise he wouldn't have put his R in harms way with <23...Rf6>.

After <26.Rfc1>, Black's only reasonable alternative to blocking with the B would be to move his Q but both <26...Qa6> and <26...Qd8> would lose to <27.Nf6>, uncovering simultaneous attacks on the errant N and that R on f6.

Regardless of whether he thought 24.Bb2 wasn't possible it would have been prudent to think again once it had been played. I can only imagine that the fact that his illustrious opponent was playing blindfold beguiled him into thinking he'd made a very basic blunder.

May-08-21  RandomVisitor: Maybe Koltanowski did not "see" that after 22.Nd4, 22...Re5 leads to an equal game for black:


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Stockfish_21050709_x64_modern:

<56/36 12:01 -0.00 22...Re5> 23.Rd1 Rd8 24.Bd2 Ng5 25.Qg4 Qb7+ 26.Kg1 h6 27.Rac1 Ree8 28.Nc6 Rd6 29.h4 Ne4 30.Nxb8 Nxd2 31.Nc6 Rg6 32.Qa4 Qd7

May-08-21  RandomVisitor: 10.Nxf6 Qxf6 11.Qa4 is good for white


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Stockfish_21050709_x64_modern:

<47/77 08:14 +2.96 10.Nxf6+ Qxf6 11.Qa4> Rd8 12.e4 Bxe4 13.Bg5 Qg6 14.Bxd8 Qxg2 15.Rg1 Qxf3 16.Bxd7+ Kxd8 17.Bg4 Bc6 18.Bxf3 Bxa4 19.Rxg7 Ke7 20.dxc5 Bxc5

May-08-21  RandomVisitor: "We shall defend our king, whatever the cost may be, we shall fight in the center, we shall fight on the wings, we shall fight on the kingside and on the queenside, we shall fight a pawn or more down; we shall never surrender."

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