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Subject: Re: Endgame Testpostition

Author: Eduard Nemeth

Date: 12:15:32 04/04/04

Go up one level in this thread


On April 04, 2004 at 14:08:49, Robert Hyatt wrote:

>On April 04, 2004 at 08:52:41, Eduard Nemeth wrote:
>
>>Endgame Testpostition
>>
>>The Game:
>>
>>[Event "4NCL West Bromwich ENG"]
>>[Site "?"]
>>[Date "2004.??.??"]
>>[Round "5"]
>>[White "Collinson, A."]
>>[Black "King, D."]
>>[Result "0-1"]
>>[ECO "B50"]
>>[WhiteElo "2390"]
>>[BlackElo "2495"]
>>[PlyCount "105"]
>>[EventDate "2004.??.??"]
>>
>>1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bd3 Nc6 5. Bc2 Bg4 6. d3 e6 7. Nbd2 Be7 8. h3
>>Bh5 9. Nf1 d5 10. Ng3 Bg6 11. Qe2 Qc7 12. Bg5 O-O-O 13. e5 Nh5 14. Bxe7 Qxe7
>>15. Nxh5 Bxh5 16. g4 Bg6 17. O-O-O d4 18. c4 h5 19. a3 Qc7 20. Rde1 hxg4 21.
>>hxg4 Rxh1 22. Rxh1 a6 23. Ba4 Ne7 24. Nd2 b5 25. Bc2 Qb7 26. Rh2 Kc7 27. f4 Rb8
>>28. Qf3 Qxf3 29. Nxf3 Nc6 30. b3 Rf8 31. Nh4 Rh8 32. Kd2 f6 33. exf6 gxf6 34.
>>Nf3 Rxh2+ 35. Nxh2 b4 36. a4 f5 37. Bd1 Kd6 38. Nf1 e5 39. gxf5 Bxf5 40. Ng3
>>Ke6 41. Bf3 Na5 42. Bd5+ Kf6 43. fxe5+ Kxe5 44. Kc2 Kf4 45. Nxf5 Kxf5 46. Be4+
>>Kf4 47. Bg2 Ke3 48. Be4 Ke2 49. Bg2 Nxb3 50. Bb7 Na1+ 51. Kb2 a5 52. Be4 Kd2
>>53. Kxa1 0-1
>>
>>After move 49 white:
>>
>>Collinson,A - King,D
>>
>>
>>[D]8/8/p7/n1p5/PpPp4/1P1P4/2K1k1B1/8 b - - 0 1
>>
>>Nxb3!
>>
>>Great move by D. King.
>>
>>                      Eduard.
>
>
>I don't believe this is a tough computer position. crafty finds this and sticks
>with it after .12 seconds...
>
>
>(this on my 750mhz laptop)
>
>              depth   time  score   variation (1)
>                1     0.00  -1.32   1. ... Nxb3
>                1->   0.00  -1.32   1. ... Nxb3
>                2     0.00     -1   1. ... Nxb3
>                2     0.00  -0.87   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3
>                2->   0.00  -0.87   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3
>                3     0.00  -0.87   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3
>                3->   0.00  -0.87   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3
>                4     0.00  -1.17   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3 Ke2
>                4->   0.00  -1.17   1. ... Nxb3 2. Bf1+ Kxf1 3. Kxb3 Ke2
>                5     0.00  -1.29   1. ... Nxb3 2. Kxb3 Kxd3 3. Bd5 Kd2
>                5->   0.00  -1.29   1. ... Nxb3 2. Kxb3 Kxd3 3. Bd5 Kd2
>                6     0.00  -1.25   1. ... Nxb3 2. Kxb3 Kxd3 3. Bb7 a5
>                                    4. Bd5
>                6->   0.01  -1.25   1. ... Nxb3 2. Kxb3 Kxd3 3. Bb7 a5
>                                    4. Bd5
>                7     0.01  -1.31   1. ... Nxb3 2. Kxb3 Kxd3 3. Bb7 a5
>                                    4. Bf3 Ke3
>                7->   0.01  -1.31   1. ... Nxb3 2. Kxb3 Kxd3 3. Bb7 a5
>                                    4. Bf3 Ke3
>                8     0.01     -1   1. ... Nxb3
>                8     0.01   1.97   1. ... Nxb3 2. Kxb3 a5 3. Be4 Ke3 4.
>                                    Bh7 Kd2 5. Be4
>                8     0.02   0.17   1. ... Ke3 2. Be4 Kf2 3. Kb2 Ke2 4.
>                                    Ka2 Kd2 5. Kb2
>                8->   0.05   0.17   1. ... Ke3 2. Be4 Kf2 3. Kb2 Ke2 4.
>                                    Ka2 Kd2 5. Kb2
>                9     0.06   0.27   1. ... Ke3 2. Be4 Kf2 3. Kb2 Ke2 4.
>                                    Ka2 Kd2 5. Kb2 Ke3
>                9     0.09     +1   1. ... Nxb3!!
>                9     0.10     +3   1. ... Nxb3!!
>                9     0.12  -1.73   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3
>                9->   0.12  -1.73   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3
>               10     0.16  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3 6. a5 <HT>
>               10->   0.18  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3 6. a5 <HT>
>               11     0.25  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3 6. a5 Kd4
>               11->   0.28  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. Bh3 Ke3
>                                    4. Bf5 d3 5. Bxd3 Kxd3 6. a5 Kd4
>               12     0.53     +1   1. ... Nxb3!!
>               12     0.56  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bxd3+ Kxd3 6. Ka4 Kd2
>                                    7. Kb3 Kd3
>               12->   0.61  -1.70   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bxd3+ Kxd3 6. Ka4 Kd2
>                                    7. Kb3 Kd3
>               13     0.81     +1   1. ... Nxb3!!
>               13     1.27  -2.70   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bg6 d2 6. Bh5+ Ke1 7.
>                                    Bf3 Kf2 8. Bd1 Ke1 <HT>
>               13->   1.31  -2.70   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bg6 d2 6. Bh5+ Ke1 7.
>                                    Bf3 Kf2 8. Bd1 Ke1 <HT>
>               14     1.86  -2.48   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bg6 Ke3 6. Bh5 Kf2 7.
>                                    Bd1 Ke3 8. Bg4
>               14->   1.93  -2.48   1. ... Nxb3 2. Kxb3 Kxd3 3. a5 Ke2
>                                    4. Be4 d3 5. Bg6 Ke3 6. Bh5 Kf2 7.
>                                    Bd1 Ke3 8. Bg4


Thanks Robert!

Fritz 8 can not find this move Nxb3 (on my PC). Why this? ;)

Best,
Eduard



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