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Portela & Lopez Martinez vs Jose Raul Capablanca
Consultation game (1914), Buenos Aires ARG, Sep-22
Caro-Kann Defense: Exchange Variation (B13)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Mar-02-05
Premium Chessgames Member
  beatgiant: What happens on 20. Nfe5, stopping the e-pawn? I wasn't able to find anything for Black, for example 20...Nxe5 21. dxe5 Bc6 22. f3 d4 23. Be4 d3 24. Qe3, etc.
Mar-03-05
Premium Chessgames Member
  tpstar: <beatgiant> The consultants played the opening pretty well here, without us knowing their strength, although 11. Bxf4 Qxf4 12. Nbd2 should improve, also 13. g4!? proved too weakening. Along with your 20. Nfe5, I wonder about 18. Nxf7 Nxg4 19. Nfe5 blocking the Queen out while swiping the exchange. This looks like a case where White was overwhelmed after not making any provisions for defense.
Mar-03-05
Premium Chessgames Member
  beatgiant: <tpstar>
On 18. Nxf7, Black can still reply 18...Qf4! and in that case, I don't see a good defense for White.
Mar-03-05
Premium Chessgames Member
  tpstar: <beatgiant> I agree that 18. Nxf7 Qf4 19. Qe3 (19. N3e5? Qh2+ mates lol) Qxg4+ 20. Kf1 Rh3 21. Ke2 Rf8 is awkward for White, but how about 19. Nxh8 Qxg4+ 20. Kh1 Rxh8+ 21. Nh2 Qh3 22. f3, then White must return the exchange after 22 ... Nh5 23. Rg1 Ng3+ 24. Rxg3 Qxg3 25. Qg2 with an even endgame. Does Black have an improvement here?
Mar-03-05
Premium Chessgames Member
  beatgiant: <tpstar>
<Does Black have an improvement here?>

The improvement is 18. Nxf7 Qf4 19. Nxh8 Qxg4+ 20. Kh1 Rxh8+ 21. Nh2 <Qf4!>, so that 22. f3 Rxh2+ 23. Qxh2 Qxf3+ followed by 24...Qxd3, with three minor pieces and a pawn for two rooks, and White's king still exposed.

Mar-03-05
Premium Chessgames Member
  beatgiant: Back to my original question, maybe Capa's idea was 20. Nfe5 Nxe5 21. dxe5 Bc6 22. f3 d4 23. Be4 <dxc3!> threatening ...Rd2, as is 24. Red1 Bxe4 25. fxe4 Rxd1 26. Rxd1 cxb2 with three pawns for a knight and a continuing attack.
Mar-04-05  Calli: <beat> really don't think there is a forced win. In fact, white's last move is a blunder. Just 23.Qe3 Rxg4+ 24.Nxg4 Qxg4+ 25.Qg3 is at least equal.
Mar-04-05
Premium Chessgames Member
  beatgiant: <Calli>
<Just 23.Qe3>
Good point.

Also if 21...Rh4 22. Qe3! Bxg4 23. Qxf4 exf4 24. Nxg4 Rxg4+ 25. Kf3 looks good for White.

So maybe Capa should have played 21...exd4, to answer 22. cxd4 Rh4 23. Qe3 with 23...Rxg4+ 24. Nxg4 Qxg4+ winning the d-pawn as well (if 25. Kf1 Re8, etc.) with two pawns for the exchange and White's king still a bit exposed.

May-25-14  roybot: i feel like black could have threatened a mate on 17. by sacrificing Nxg4, if white takes, the queen can move Qg3, if not, at least he wins a pawn and a menacing position

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