Author: Timothy J. Frohlick
Date: 20:21:08 05/14/02
Go up one level in this thread
From Move 19. You can see that the move for white, Rh3 doesn't help white very
much.
Frohlick,Tim - Hiarcs 8
1...Nxb2 2.Kxb2 Ba3+ 3.Kxa3 Qc3+ 4.Nb3 a4 5.Ba7 axb3 6.Rh3 bxc2+ 7.Rxc3 cxd1Q
8.Bxb5 Qxd5 9.Kb4 0-0 10.a4 Qb7 11.Bc5 Rfb8 12.Qc2 Nf6 13.Rd3 Qe4+ 14.Kc3 Nd5+
15.Rxd5 Qxd5 16.Kb4 Qh1 17.Qd3 Qa1 18.Qc2 Qe1+ 19.Kb3 Qg3+ 20.Qc3 Qxg4 21.Qc4 e4
22.Qc1 Qxh4 23.Qe3 Qh1 24.Kc2 Rxb5 25.axb5 Qf1 26.Qxe4 Rc8 27.Qb4 Qf5+ 28.Kb3
Qd5+ 29.Qc4 Qxc5 30.Qd3 Ra8 31.Qd2 Ra3+ 32.Kb2 Rf3 33.Kb1 Rb3+ 34.Qb2 Qxb5
35.Qxb3 Qxb3+ 1-0
Tim
On May 14, 2002 at 21:46:53, Jim Monaghan wrote:
>Hi everyone,
>
>In Horizon's current series of test games, the following game was recently
>played:
>
>[Event "Computer chess game"]
>[Site "JUBBY"]
>[Date "2002.05.02"]
>[Round "2"]
>[White "Horizon 3.1"]
>[Black "King of Kings 2.02"]
>[Result "1-0"]
>[TimeControl "40/900"]
>
>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8.
>Be3 Be7 9. Qd2 Nbd7 10. g4 h6 11. O-O-O b5 12. h4 Nb6 13. Qf2 Nfd7 14. Kb1
>Qc7 15. Nd5 Bxd5 16. exd5 Nc4 17. f4 a5 18. fxe5 dxe5 19. Nd2 Nxb2 20. Kxb2
>Ba3+ 21. Kxa3 Qc3+ 22. Nb3 a4 23. Ba7 axb3 24. Rh3 bxc2+ 25. Rxc3 b4+ 26.
>Kxb4 cxd1=Q 27. Bb5 Qxg4+ 28. Rc4 Qg6 29. Qc5 Qf5 30. Ka5 h5 31. a4 Rf8 32.
>Qb6 Ke7 33. Rc7 Rfd8 34. Qb7 e4 35. Bc6 Rxa7+ 36. Qxa7 Ke8 37. Kb4 Qg4 38.
>d6 e3+ 39. Ka3 Qg6 40. Qxe3+ Qe6 41. Bxd7+ Rxd7 42. Rc8+ Rd8 43. Qxe6+
>fxe6 44. Rxd8+
>{Black resigns} 1-0
>
>In this position:
>
>[D] r3k2r/2qnbpp1/7p/pp1Pp3/2n3PP/4B3/PPPN1Q2/1K1R1B1R b kq - 1 19
>
>KOK 2.02 uncorked 19... Nxb2!? A speculative knight sacrifice in the style of
>Tal. A sequence of forced moves followed. Then:
>
>[D] r3k2r/B2n1pp1/7p/1p1Pp3/6PP/Kpq5/P1P2Q2/3R1B1R w kq - 0 23
>
>Hori's 24. Rh3!? giving up a rook is surprising. Engines like Yace and Crafty
>consider this to be a serious error. What's amazing is that Hori's king
>continues to march up the queenside. Black "thinks" it's up a number of pawns.
>But, in reality, Hori establishes a devasting pin on the black knight. This ties
>KOK up, his QR is blocked off on the a-file and his KR is locked in by his king
>who is busy defending the pinned knight. Hori's king is safely surrounded by
>friendly pieces and the BQ cannot attack alone. In the end, the pin proves KOK's
>undoing.
>
>A few questions/comments:
>
>A) Is KOK's 19... Nxb2?! a correct sacrifice? Or should the solid 19... Nxe3
>have been played?
>
>B) Is Hori's 24. Rh3!? a valid defense? Or should the prosaic 24. axb3 have been
>played?
>
>C) In this position:
>
>[D] r3k2r/B2n1pp1/7p/1B1Pp3/1K4PP/2R5/P4Q2/3q4 b kq - 0 27
>
>I think KOK should have castled and gave back the knight with a wild, but
>perhaps roughly level position. Instead he played 27... Qxg4+? and after 28.
>Rc4 the BQ moved to 28... Qg6 and the opportunity to castle was lost after
>Hori's 29. Qc5!
>
>So, I believe that (A) and (B) above were played correctly by both engines. The
>losing error occured at Black's 27th. But I'm not sure ... The game was played
>on an AMD Athalon 1.6. My Cel-300 :-( and me are not sure on the above
>evaluations.
>
>A really amazing game. Not at all easy for engines to evaluate.
>
>Kind Regards,
>Jim
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.