Author: Paulo Soares
Date: 23:02:58 08/28/99
Go up one level in this thread
On August 28, 1999 at 09:31:29, Howard Exner wrote:
>On August 27, 1999 at 19:20:49, Paulo Soares wrote:
>
>>On August 27, 1999 at 13:14:34, Howard Exner wrote:
>>
>>>On August 27, 1999 at 04:54:05, Howard Exner wrote:
>>>
>>>>On August 27, 1999 at 00:00:22, Paulo Soares wrote:
>>>>
>>>>>On August 26, 1999 at 15:26:30, Howard Exner wrote:
>>>>>
>>>>>>On August 26, 1999 at 05:20:10, Paulo Soares wrote:
>>>>>>
>>>>>>>1. c5 really wins? I have my doubts with the following variant: 1.c5 bxc5.
>>>>>>>I didn't still get to find a line that wins.
>>>>>>>
>>>>>>>2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - -
>>>>>>>
>>>>>>>Paulo
>>>>>>
>>>>>>1. c5 bxc5 2. Be1 Kb8 3. Kc4 Kc8 4. Ba5 Bd4 5. Bd8 Be3 6. Bg5 Kc7 7. Kd3
>>>>>>Bc1 8. Bxh4 Bxf4 9. Bd8+ Kc8 10. h4 Be5 11. Ba5 Bg7 12. h5
>>>>>>
>>>>>>This sequence looks like it should win for white. If there's a better
>>>>>>sequence of moves maybe we can continue to work on it.
>>>>>
>>>>>Good line! I didn't get to find defense for black.
>>>>>I am not getting to find a winner endgame for
>>>>>white with the line below, in which black plays
>>>>>4...Kb8 instead of 4...Bd4.
>>>>
>>>>This is a tough one. I'll try some lines and report back.
>>>>I wonder if the author of this test, Frederic Louguet, has
>>>>the solution somewhere? Also I read another reply to your post saying
>>>>that the solution is a long one but no lines were given.
>>>>
>>>>>Paulo
>>>>>
>>>>>[Round ""?]
>>>>>[White ""?]
>>>>>[Black ""?]
>>>>>[Result " *"]
>>>>>[Annotator " Soares,P "]
>>>>>[SetUp " 1 "]
>>>>>[FEN " 2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1 "]
>>>>>
>>>>>1. c5 bxc5 2. Be1 Kb8 3. Kc4 Kc8 4. Ba5 Kb8 5. b6 axb6
>>>>>6. Bxb6 Bd4 7. a7+ Kb7 8. Bc7 Kxa7 9. Bxd6 Kb6
>>>
>>>Here are some lines that look promising:
>>>
>>>
>>>1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. a7+ Kb7 7. Bc7
>>>Kxa7 8. Bxd6 Kb6 9. Be5 Be7 10. Kc4 Bf8 11. Bf6 Bd6 12. Bd8+ Kb7 13. Bxh4
>>>Bxf4 14. Kxc5 Kc7 15. Bf2 Bh6 16. h4 Kd7 17. h5 Bg5 18. Be1 Bh6 19. Kd4
>>>Bg7+ 20. Kc4 Bh6 21. Bb4 Be3 22. Kd3 Bg5 23. Bd2 f4 24. Ke4 f3 25. Be3
>>>Kd6 26. Kxf3 Bf6 27. Ke4 Bg7 28. h6
>>>
>>>1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. a7+ Kb7 7. Bc7
>>>Be7 8. Bb8 Bf8 9. Kc3 Ka8 10. Kc4 Kb7 11. Kb5 Be7 12. Bc7 Kxa7 13. Kc6
>>>Ka6 14. Kd7 Bf8 15. Ke8 Kb7 16. Ba5 Bh6 17. Bd2 c4 18. Kd7 c3 19. Be3 Bf8
>>>20. Ke6 Ka6 21. Kxf5 Kb5 22. Ke6 Kc4 23. f5 Kd3 24. Bg5 c2 25. f6
>>
>>
>>I think that your first line it's bad for black, because 7...Kxa7 seemed
>>wrong. However I didn't find win for white after 7 ...Be7.
>>20 ...c2, seems to be a good move.
>>I am analyzing the position whit Hiarcs 7.32 + hashtables(only from
>>CD), and you?
>
>I use Rebel 10 to help me go through games. Your analysis below
>has many improvements for black. This got me thinking that maybe
>we are pushing the white pawn on a6 too soon. This ending is all
>about tempos and white having the better king position as well as better
>pawn placement. It looks like there should be a win here. How about these
>alternative lines:
>
>A.1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. Kc4 Bd4 7. Bd8
>Be3 8. Bxh4 Bxf4 9. Bf6 Bg3 10. h4 f4 11. Kd3 f3 12. Ke3 f2 13. Ke2 Ka7
>14. h5 Bf4 15. Bg7 Kxa6 16. Kxf2 Kb5 17. Kf3 Bg5 18. h6
>
>B.1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. Kc4 Kc8 7. Kb5
>Kb8 8. Kc6 Be7 9. Kd7 Bf8 10. Ke6
>
>By sharing different lines we might come up with a possible solution.
>
>>
>>[Event "?"]
>>[Site "?"]
>>[Date "????.??.??"]
>>[Round "?"]
>>[White "Analises"]
>>[Black "?"]
>>[Result "*"]
>>[Annotator "Soares,P"]
>>[SetUp "1"]
>>[FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1"]
>>[PlyCount "48"]
>>
>>1. c5 bxc5 2. Be1 Kb8 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 6. a7+ Kb7 7. Bc7 Be7
>>8. Bb8 Bf8 9. Kc3 Ka8 10. Kc4 Kb7 11. Kb5 Be7 12. Bc7 Kxa7 13. Kc6 Ka6 (13...
>>c4 {!?}) 14. Kd7 Bf8 15. Ke8 Kb7 16. Ba5 Bh6 17. Bd2 c4 18. Kd7 c3 19. Be3 Bf8
>>(19... c2 {!?}) 20. Ke6 Ka6 (20... c2 21. Kxf5 Bg7 22. Bc1 (22. Kg6 Bd4 23. Bc1
>>Kb6 24. f5 Kc5 25. f6 Bxf6 26. Kxf6 Kxd5 {=}) (22. Ke6 Bb2 23. Kxd6 c1=Q 24.
>>Bxc1 Bxc1 25. f5 Kc8 26. Ke6 Kd8 {=}) 22... Kb6 23. Ke6 Kc5 24. f5 Be5 25. f6
>>Bxf6 26. Kxf6 Kxd5 27. Kf5 Kd4 28. Kf4 (28. Kg4 Ke4 29. Kxh4 Kf3 30. Kg5 d5 31.
>>h4 d4 32. h5 d3 33. h6 Ke2 {=}) 28... Kd3 29. Kf3 d5 30. Kf2 d4 31. Kf3 Kc3 32.
>>Ke4 d3 33. Ke3 Kc4 {=}) 21. Kxf5 Kb5 22. Ke6 Kc4 23. f5 Kd3 24. Bg5 c2 {
>>f6[Event "?"]} *
Line "B.1" seemed a win for white. I worked hard on line "A.1",
but I think it's too good for white.
I tried to win a tempo with 14...f1=Q+, and I got to think that black
could draw. Illusion.
I increased a variant that we didn't have analyzed, 2 ...Bd8, that avoids
3. Ba5, but I think that 3.Bc3! win.
I was tired and I didn't to find the winner line for white for
move (5...Bb2!?), but seemed dificult to find a draw for black.
See some lines below.
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Annotator "Soares,P"]
[SetUp "1"]
[FEN "2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - 0 1"]
[PlyCount "35"]
1. c5 bxc5 2. Be1 Kb8 (2... Bd8 3. Bc3! Kb8 4. Bg7 Kc8 5. Bh6 Kd7 6. Bg5 Ba5 7.
Bxh4 Ke8 8. Bg5 Kf7 9. h4 Bb6 10. h5 Bc7 11. h6 Kg6 12. Kc4 Kh7 13. Be7 Kxh6
14. Bxd6 {+-}) 3. Ba5 Kc8 4. b6 axb6 5. Bxb6 Kb8 (5... Bb2 {!?}) 6. Kc4 Bd4 7.
Bd8 Be3 8. Bxh4 Bxf4 9. Bf6 Bg3 10. h4 f4 11. Kd3 f3 12. Ke3 f2 13. Ke2 Ka7 14.
h5 Bf4 (14... f1=Q+ 15. Kxf1 Bf4 16. Bg7 Kxa6 17. Ke2 (17. h6 {?} 17... Bxh6
18. Bxh6 Kb5 {=}) 17... Kb5 18. Kd3 c4+ 19. Ke4 Bd2 20. h6 c3 21. Kd3 (21. h7 {
?!} 21... c2 22. Bb2 Bc3 23. Bxc3 c1=Q 24. h8=Q) 21... Bxh6 22. Bxh6 Kc5 23.
Ke4 c2 24. Bd2 Kc4 25. Be3 {+-}) 15. Bg7 Kxa6 16. Kxf2 Kb5 17. Kf3 Bg5 18. h6 *
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