Author: John Merlino
Date: 12:31:30 02/24/04
Go up one level in this thread
On February 24, 2004 at 13:50:08, Chessfun wrote:
>On February 23, 2004 at 23:43:01, Mike S. wrote:
>
>>On February 23, 2004 at 17:55:47, John Merlino wrote:
>>
>>>This should be the last position after 27.Bh4. My bad....
>>
>>[D]2r2r1k/p6B/1qn1b3/3pP3/1P1P1P1b/P1p2NR1/6P1/1K5R w - - 0 28
>>
>>According to results of a quick analysis with Hiarcs 9 on my internet pc (which
>>is a bit slow though, 700 MHz), this position ist clearly won for white because
>>the threats against the bk are too strong. Black's going to have to return
>>material to avoid a direct mate. After the last move in your variant 27...Bh4,
>>28.Bd3 simply threats #1. It seems that only 28...Qd8 or 28...Rxf4 are defense
>>attempts which make some sense, but are not sufficient:
>>
>>22...bxc3 23.Qxe6+ Bf7 24.Bxg6 Qb6 25.b4 Bxe6 26.Bxh7+ Kh8 27.Rh1 Bh4 28.Bd3 Qd8
>>(28...Rxf4 29.Nxh4 Bg4 30.Ng6+ Kg8 {(or Kg7)} 31.Nxf4) (28...c2+ {achieves
>>nothing.}) 29.Nxh4 Qd7 30.Nf3+ Bh3 31.Rhxh3+ Qxh3 32.Rxh3+)
>>
>>(I didn't check the analysis prior to 28.Bd3)
>>
>>
>>[Event "New York"]
>>[Site "New York"]
>>[Date "1947.??.??"]
>>[Round "?"]
>>[White "Evans, L."]
>>[Black "Pilnick, C."]
>>[Result "1-0"]
>>[ECO "C13"]
>>[PlyCount "57"]
>>[EventDate "1947.??.??"]
>>
>>1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4 O-O 8.
>>O-O-O c5 9. h4 cxd4 10. Nce2 Nc6 11. f4 Qa5 12. Kb1 d3 13. cxd3 Bd7 14. Rh3
>>Rac8 15. Rg3 g6 16. d4 b5 17. h5 Nb4 18. a3 Nc6 19. hxg6 fxg6 20. Nc3 b4 21.
>>Bd3 Be8 22. Nf3 bxa3 (22... bxc3 23. Qxe6+ Bf7 24. Bxg6 Qb6 25. b4 Bxe6 26.
>>Bxh7+ Kh8 27. Rh1 Bh4 28. Bd3 Qd8 (28... Rxf4 29. Nxh4 Bg4 30. Ng6+ Kg8 {
>>(or Kg7)} 31. Nxf4) (28... c2+ {achieves nothing.}) 29. Nxh4 Qd7 30. Nf3+ Bh3
>>31. Rhxh3+ Qxh3 32. Rxh3+) 23. Qxe6+ Bf7 24. Bxg6 axb2 25. Bxh7+ Kh8 26. Qh6
>>Qa1+ 27. Kc2 b1=Q+ 28. Rxb1 Nb4+ 29. Kd1 1-0
>
>I don't think you looked at 28...c2+ long enough or maybe with a variety of
>engines. There are many variations but I think the following best for both
>sides.
>
>[Event "New York"]
>[Site "New York"]
>[Date "1947.??.??"]
>[Round "?"]
>[White "Evans, L."]
>[Black "Pilnick, C."]
>[Result "1-0"]
>[ECO "C13"]
>[PlyCount "57"]
>[EventDate "1947.??.??"]
>
>1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4 O-O 8.
>O-O-O c5 9. h4 cxd4 10. Nce2 Nc6 11. f4 Qa5 12. Kb1 d3 13. cxd3 Bd7 14. Rh3
>Rac8 15. Rg3 g6 16. d4 b5 17. h5 Nb4 18. a3 Nc6 19. hxg6 fxg6 20. Nc3 b4 21.
>Bd3 Be8 22. Nf3 bxa3 (22... bxc3 23. Qxe6+ Bf7 24. Bxg6 Qb6 25. b4 Bxe6 26.
>Bxh7+ Kh8 27. Rh1 Bh4 28. Bd3 c2+ 29. Kc1 Rxf4 30. Nxh4 Bg4 31. Ng6+ Kg8 32.
>Nxf4 Nxe5 33. dxe5 Kf8 34. Rf1 Ke8 35. Nxd5 Qh6+ 36. Ne3 Rc3 37. Kd2 Qf4 38.
>Kxc3 Qxe5+ 39. Kxc2 Qc7+ 40. Kd2 Qxg3 {See analysis}) 23. Qxe6+ Bf7 24. Bxg6
>axb2 25. Bxh7+ Kh8 26. Qh6 Qa1+ 27. Kc2 b1=Q+ 28. Rxb1 Nb4+ 29. Kd1 1-0
>
>(28. Bd3 c2+ 29. Kc1 Rxf4 30. Nxh4 Bg4 31. Ng6+ Kg8 32.
>Nxf4 Nxe5 33. dxe5 Kf8 34. Rf1 Ke8 35. Nxd5 Qh6+ 36. Ne3 Rc3 37. Kd2 Qf4 38.
>Kxc3 Qxe5+ 39. Kxc2 Qc7+ 40. Kd2 Qxg3) See analysis
>
>Evans,L - Pilnick,C
>4k3/p7/8/8/1P4b1/P2BN1q1/3K2P1/5R2 w - - 0 1
>
>XP 2600 128 Mb
>
>Analysis by Hiarcs 9:
>41.Nxg4 Qxg4 42.Re1+ Kd8 43.Be4 Qd7+ 44.Ke2 Qg4+ 45.Kd3 Qd7+ 46.Kc3 Qc7+ 47.Kd4
>Qd6+ 48.Bd5 Qf6+ 49.Re5 Qf4+ 50.Be4
> ² (0.66) Depth: 14/39 00:07:53 157284kN, tb=2763
>
>Analysis by Shredder 8:
>41.Bb5+ Kd8 42.Rf8+ Kc7 43.Rf7+ Kb8 44.Bc4 Bc8 45.Rf3 Qe5 46.Bd5 Qd4+
> ² (0.48) Depth: 15/41 00:03:20 69215kN, tb=14211
>
>Sarah.
Thanks Sarah,
My analysis of the line ended at 35...Qh6+ because here things get sticky. White
has three reasonable replies -- Ne3, Nf4 and Rf4. Depending on the time control,
CM_SKR could choose Nf4 or Re4 -- and your analysis chose Ne3 :-). This is on a
P4-2.4:
Time Depth Score Positions Moves
0:00 1/7 1.41 120692 36.Rf4 Qh1+ 37.Bf1 Be6 38.Nf6+
Kd8 39.Rd3+ Ke7 40.Rd6 Qh2
0:01 1/8 0.98 273207 36.Rf4 Qh1+ 37.Bf1 Be6 38.Nf6+
Kd8 39.Rg7 Qh6 40.Nh5 Rc7
0:03 1/8 1.33 581165 36.Ne3 Rc3 37.Kd2 c1=Q+ 38.Rxc1
Rxc1 39.Kxc1 Qf4 40.Rxg4 Qxe3+
41.Kc2 Qxe5 42.Kd1
0:05 1/8 2.00 953175 36.Nf4 Qg5 37.Bg6+ Kd8 38.Rd3+
Ke7 39.Re3 Bd1 40.Nd5+ Ke6 41.Bf7+
Kd7 42.Rf6
0:08 1/9 1.67 1461754 36.Nf4 Qg5 37.Bg6+ Kd8 38.Rd3+
Kc7 39.Rd5 Bf5 40.e6 Qf6 41.Rc5+
Kb7
0:16 1/10 1.21 2950627 36.Nf4 Qg5 37.Bb5+ Kd8 38.Re3 Bf5
39.e6 Ke7 40.Re5 Kf6 41.Re2 Qg3
0:29 1/10 1.32 5389627 36.Rf4 Qh1+ 37.Bf1 Be6 38.Ne3 Qh2
39.Rff3 Qh5 40.Bb5+ Kd8 41.Rf8+
Ke7 42.Rxc8 Bxc8
0:39 1/11 1.41 7442794 36.Rf4 Qh1+ 37.Bf1 Be6 38.Ne3 Rc6
39.Rgf3 Ke7 40.b5 Rc5 41.Ra4 Rxb5
42.Rxa7+ Bd7
1:21 1/12 1.22 15132600 36.Rf4 Qh1+ 37.Bf1 Be6 38.Ne3 Rc3
39.Rf6 Bb3 40.Rh3 Qg1 41.Rh8+ Kd7
42.Ng4 Rd3 43.Rh7+ Ke8
1:58 1/12 1.32 22310238 36.Nf4 Qg5 37.Bb5+ Kd8 38.Re3 Kc7
39.Ba6 Re8 40.Nd5+ Kc6 41.Rf6+
Re6 42.Bc4 Rxf6 43.exf6 Qg6
4:04 2/13 1.09 46776948 36.Nf4 Qg5 37.Bb5+ Kd8 38.Re3 Kc7
39.g3 Kb8 40.Ba6 Rc6 41.Bd3 Bf5
42.e6 Bxd3 43.Rxd3 Rxe6 44.Kxc2
5:41 2/13 1.15 66968395 36.Rf4 Qh1+ 37.Bf1 Be6 38.Ne3 Rc3
39.Rg6 Bb3 40.Nf5 Rd3 41.Nd6+ Kd7
42.Rg7+ Ke6 43.Kb2 Kxe5
But the eval doesn't look all that convincing in any case....
Quite an amazing game!
jm
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