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Fidel Corrales Jimenez vs Julio Ernesto Granda Zuniga
Continental Absolute Champions (2009), Sao Paulo, rd 8, Jul-31
French Defense: Steinitz. Boleslavsky Variation (C11)  ·  1-0



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Kibitzer's Corner
Jul-07-12  LoveThatJoker: GG and solid win from GM Corrales Jimenez!


Premium Chessgames Member
  An Englishman: Good Evening: Completely baffled. Probably shouldn't have had wine with dinner tonight.
Dec-15-19  The17thPawn: <An Englishman> I probably should have drank the bottle and then gone to bed rather than ponder this gordian knot.
Dec-15-19  mel gibson: Stockfish 10 is calling it a draw:


(20. axb4 (a3xb4 ♗b7xd5 c2-c3 g7-g6 ♗e2-d3 ♕c7-d7 ♗e3-d4 ♗d5-c4 ♗d3xc4 ♖c8xc4 ♕f4-e3 ♖c4-c8 ♕e3-d3 ♕d7-e6 ♖f1-a1 ♖c8-d8 ♕d3-e3 ♗e7-f8 ♘f3-e1 ♗f8-g7 ♘e1-d3 h7-h5 ♖a1-e1 ♕e6-d5 h2-h3 ♔g8-h7 ♖e1-a1 ♕d5-e6 ♔g1-h2 ♖d8-e8 ♕e3-e2 ♔h7-g8 ♔h2-g1 ♕e6-c6 ♕e2-e3 ♕c6-e6 ♘d3-c5 ♕e6-d5 ♘c5xe4 f5xe4 ♖a1xa6) 0.00/36 86)

score = 0.00 depth 36

Dec-15-19  JimmyRockHound: According to Stockfish, 21......Bxb4 draws.
Dec-15-19  Walter Glattke: No puzzle visible, equal after 20.axb4 Bxd5, material and tactical. 21.Rc1 Qxb2 22.Rxc8+ Bf8 23.Bh6? Qxe2 24.Qg4!? Qd1+ no "petite combinaison" visible.
Dec-15-19  Cheapo by the Dozen: Once again, a puzzle whose solution isn't a forced win. And so I'm glad I didn't spend much time on it. But I am a little embarassed at not noticing how difficult it would be for Black to retreat or otherwise move his knight.
Dec-15-19  landshark: I actually gave this one a go (rarely on Sundays anymore because I don't like to surrender the time) and was - baffled. I probably would have proceeded OTB as white did for at least the first 3-4 moves, from the mentality of just trying to keep the position balanced. Nice sharp, attractive game!
Dec-15-19  patzer2: White's situation in today's Sunday (20. ?) puzzle reminded me of a quote by the Christian, evangelical missionary Jim Elliot (see Almost seven years before losing his life on the mission field, Jim wrote "he is no fool who gives what he cannot keep to gain that which he cannot lose."

In this position (20. ?), White has no choice but to surrender the Rook. It's best to surrender the Rook immediately with 20. axb4! Bxd5 21. Qxf5!? = (0.00 @ 39 ply, Stockfish 10) or 21. c3 (+0.09 @ 39 ply).

If White tries to save the Rook with 20. Rd1?, Black forces its surrender under unfavorable circumstances for White with 20...Nd5! 21. Rxd5 Bxd5 22. Qxf5 Bc5 23. Nd4 g6 ∓ (-0.62 @ 37 ply).

P.S.: So if 20. axb4! Bxd5 21. Qxf5! = merely avoids a bad position to maintain equality, where did Black go wrong?

Black's mistake was falling into White's trap after 21. Qxf5! and taking the poisoned pawn with 21..Qxc2?

After 21...Qxc2?, White gained a strong advantage with 22. Nd4 ± (+0.84 @ 41 ply). Apparently, even stronger and more nearly decisive after 21...Qxc2? is 22. Bd3! Qc6 23. Nd4 ± to +- (+1.36 @ 41 ply).

Instead of 21...Qxc2?, allowing 22. Bd3! ± to +-, Black can maintain equality with 21...Bxb4 = (0.00 @ 38 ply) or 21...g6 22. Qf4 Bxb4 = (-0.09 @ 38 ply).

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

Black threatens Nxd5, Bxd5 and Nxc2.

I don't know. I'd probably play 20.axb4 Bxd5 21.c3 preparing an attack against the black king.

Dec-15-19  catlover: <Patzer2> I love that quote by Jim Elliot.

As is usually the case for me with Sunday puzzles, this one was beyond me.

Dec-15-19  Arn Zufeld: I was just snowed under trying to figure out 18 moves. Iím a Minnesotan so that takes a lot!
Premium Chessgames Member
  Oginschile: LoL Arn... born and raised in Rochester Mn, no stranger to getting lost in a snowstorm myself... i tipped my hat to this one and enjoyed the rest of the game.

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