Dann, diagram 4. I think this is the mainline of win for blacks.
[Event "120'/40+60'/20+30'"]
[Site "Residencia"]
[Date "2007.05.02"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "8/1p6/p7/3b4/4kPp1/P5Bp/1P2K3/8 w - -"]
1. b4 Kd4 2. Kf1 Kc3 3. Kg1 Kb3 4. Kh2 Kxa3 5. Be1 b6 6. f5
Ka4 7. Kg3 a5 8. bxa5 bxa5 9. f6 Kb5 10. Bc3 a4 11. Be5 Be6
12. Bd6 Kc4 13. Kh2 Kb3 {-+} *
Later I will go to see the other position without pawns in a3 and b2,
diagram 3.
Paulo Soares
test position is it correct?
Moderators: hgm, Rebel, chrisw
-
PauloSoare
- Posts: 1335
- Joined: Thu Mar 09, 2006 5:30 am
- Location: Cabo Frio, Brasil
-
PauloSoare
- Posts: 1335
- Joined: Thu Mar 09, 2006 5:30 am
- Location: Cabo Frio, Brasil
Re: test position is it correct?
Diagram 3:
[d]8/1p6/p7/3b4/P3kPp1/6Bp/1P2K3/8 b - -
I don´t know how can blacks win.
Paulo Soares
[d]8/1p6/p7/3b4/P3kPp1/6Bp/1P2K3/8 b - -
I don´t know how can blacks win.
Paulo Soares
-
PauloSoare
- Posts: 1335
- Joined: Thu Mar 09, 2006 5:30 am
- Location: Cabo Frio, Brasil
Re: test position is it correct?
Uri, I don´t know if 53. a4 it´s a draw.Uri Blass wrote:It seems that you are rightPauloSoare wrote:I think that 52. Bh2 is a draw too.
Paulo Soares
Black has one more tempo but it does not help him in these lines
Maybe better test position is after Kf2 Kd3 when you need to find f5
[D]8/1p6/p7/3b4/5Pp1/P2k2Bp/1P3K2/8 w - - 0 53
Toga solves it but does not see the idea of Kc2 against other moves:
469: , Let's play chess 2006
8/1p6/p7/3b4/5Pp1/P2k2Bp/1P3K2/8 w - - 0 1
Analysis by Toga II 1.2.1a:
53.b2-b3 Bd5xb3
-+ (-1.85) Depth: 1/2 00:00:00
53.b2-b4
-+ (-1.51) Depth: 1/2 00:00:00
53.f4-f5 Kd3-d4
µ (-1.16) Depth: 1/4 00:00:00
53.f4-f5 Kd3-d4 54.f5-f6 b7-b6
µ (-1.05) Depth: 2/7 00:00:00
53.f4-f5 Kd3-d4 54.f5-f6 b7-b6 55.Bg3-f4
µ (-1.03) Depth: 3/8 00:00:00
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-d6 Kf5xf6
-+ (-1.68) Depth: 4/12 00:00:00
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-d6 Kf5xf6 56.Kf2-g3
-+ (-1.75) Depth: 5/12 00:00:00
53.b2-b4 Kd3-e4 54.Kf2-e2 b7-b6 55.Ke2-f2
-+ (-1.58) Depth: 5/12 00:00:00
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-e4 55.Bh2-g1
µ (-1.40) Depth: 5/12 00:00:00
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-c2 55.b2-b4 Kc2-d3
µ (-1.35) Depth: 6/12 00:00:00 10kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-c2 55.b2-b4 Kc2-b3 56.b4-b5 Kb3xa3 57.b5xa6 b7xa6
-+ (-1.48) Depth: 7/12 00:00:00 13kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-c2 55.b2-b4 Kc2-b3 56.b4-b5 Kb3xa3 57.b5xa6 b7xa6
-+ (-1.48) Depth: 8/13 00:00:00 21kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-c2 55.b2-b4 Kc2-b3 56.Bh2-g1 Kb3xa3 57.Bg1-c5
-+ (-1.47) Depth: 9/13 00:00:01 31kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-c2 55.b2-b4 Kc2-b3 56.Bh2-g1 Kb3xa3 57.Bg1-c5 Ka3-b3
-+ (-1.46) Depth: 10/14 00:00:01 47kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 a6-a5 56.Kf2-g3 b7-b5 57.Kg3-h2 b5-b4 58.a3xb4 a5xb4 59.Kh2-g3
µ (-1.25) Depth: 10/35 00:00:01 186kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 Kf5-f4 56.b2-b4 Kf4-f5 57.Kf2-g3 b7-b5 58.Kg3-h2 Kf5-e5 59.Bh4-g5
µ (-1.29) Depth: 11/35 00:00:01 226kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 Kf5-f4 56.a3-a4 Kf4-f5 57.Kf2-g3 a6-a5 58.Kg3-h2 Bd5-b3 59.Kh2-g3 Bb3xa4
µ (-1.40) Depth: 12/35 00:00:01 290kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 Kf5-f4 56.a3-a4 Kf4-f5 57.Kf2-g3 a6-a5 58.Kg3-h2 Bd5-b3 59.Kh2-g3 b7-b6 60.Kg3-h2 Bb3xa4
-+ (-1.47) Depth: 13/37 00:00:01 545kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 Kf5-g6 56.Kf2-g1 Kg6-h5 57.Bh4-f2 Kh5-g5 58.Kg1-h2 Kg5xf6 59.Kh2-g3 Kf6-f5 60.Bf2-d4 b7-b5
-+ (-1.67) Depth: 14/40 00:00:01 1081kN
53.Bg3-h2 Bd5-c4 54.Kf2-g3 Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b4 Ke4-f5 58.Bc5-d6 Be6-c4 59.Bd6-e5 Bc4-d5
µ (-1.21) Depth: 14/40 00:00:02 1500kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 a6-a5 55.Bh2-g1 a5-a4 56.Bg1-c5 Kd3-c4 57.Bc5-b6 Be6-f5 58.Kg3-h2 Kc4-d5 59.Kh2-g3 Bf5-d7 60.Bb6-e3
µ (-1.19) Depth: 15/40 00:00:02 1749kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 a6-a5 55.Bh2-g1 a5-a4 56.Bg1-c5 Kd3-c4 57.Bc5-b6 Be6-f5 58.Bb6-c7 Kc4-c5 59.Bc7-d8 Kc5-d4 60.Bd8-e7 Kd4-d5
µ (-1.18) Depth: 16/40 00:00:02 2043kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-e4 55.Bh2-g1 b7-b5 56.Bg1-c5 a6-a5 57.b2-b4 a5xb4 58.a3xb4 Ke4-f5 59.Bc5-d4 Be6-d5 60.Bd4-e5 Bd5-e4 61.Be5-d4 Be4-f3 62.Bd4-e5
µ (-1.19) Depth: 17/40 00:00:03 2457kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-e4 55.Bh2-g1 b7-b5 56.Bg1-c5 Be6-b3 57.Bc5-g1 Ke4-f5 58.Bg1-d4 Bb3-e6 59.Bd4-e5 Be6-f7 60.b2-b4 Bf7-d5 61.Be5-c3 Bd5-e4
µ (-1.19) Depth: 18/40 00:00:03 3003kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 Kd3-e4 55.Bh2-g1 b7-b5 56.Bg1-c5 Be6-f7 57.Bc5-g1 Ke4-f5 58.Bg1-d4 Bf7-e6 59.b2-b4 Be6-d5 60.Bd4-c3 Bd5-e4 61.Bc3-d4 Be4-f3 62.Bd4-e5
µ (-1.19) Depth: 19/40 00:00:04 3718kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 a6-a5 55.Bh2-g1 a5-a4 56.Bg1-c5 Kd3-e4 57.Bc5-b6 Ke4-f5 58.Bb6-c5 Be6-d5 59.Bc5-d4 b7-b5 60.Bd4-c5 Bd5-e6 61.Bc5-d4 Be6-c4 62.Bd4-c5 Bc4-d5
µ (-1.22) Depth: 20/40 00:00:05 6217kN
53.Bg3-h2 Bd5-e6 54.Kf2-g3 a6-a5 55.Bh2-g1 a5-a4 56.Bg1-c5 Kd3-e4 57.Bc5-b6 Ke4-f5 58.Bb6-c5 Be6-d5 59.Bc5-d4 b7-b5 60.Bd4-c5 Kf5-e4 61.Bc5-b6 Bd5-e6 62.Bb6-c5 Be6-f5 63.Bc5-b6
µ (-1.20) Depth: 21/40 00:00:06 7811kN
53.Bg3-h2 Bd5-e6 54.a3-a4 a6-a5 55.Kf2-g3 Kd3-c2 56.Kg3-h4 Be6-d7 57.Kh4-g5 Bd7xa4 58.f4-f5 Ba4-d7 59.f5-f6 Bd7-e6 60.Bh2-e5 a5-a4 61.Kg5-g6 b7-b5 62.Kg6-g5 Kc2-d3 63.Be5-d6 Kd3-e3 64.Kg5-g6 Ke3-f3 65.Kg6-g5
-+ (-1.59) Depth: 22/56 00:00:36 44305kN
53.Bg3-h2 Bd5-e6 54.a3-a4 a6-a5 55.Kf2-g3 Kd3-c2 56.Kg3-h4 Be6-d7 57.Kh4-g5 Bd7xa4 58.f4-f5 Ba4-d7 59.f5-f6 Bd7-e6 60.Bh2-e5 a5-a4 61.Kg5-h4 Kc2-d3 62.Kh4-g5 Kd3-e4 63.Be5-h2 b7-b5 64.Bh2-d6 Ke4-d4 65.Kg5-h4 Kd4-e4
-+ (-1.58) Depth: 23/57 00:01:03 74150kN
53.Bg3-h2 Bd5-e6 54.a3-a4 a6-a5 55.Kf2-g3 Kd3-c2 56.Kg3-h4 Be6-d7 57.Kh4-g5 Bd7xa4 58.f4-f5 Ba4-d7 59.Bh2-e5 Kc2-d3 60.Be5-c7 Kd3-e4 61.f5-f6 Bd7-e6 62.f6-f7 Be6xf7 63.Kg5xg4 Bf7-e6+ 64.Kg4-g3 a5-a4 65.Bc7-b6 Ke4-e5 66.Bb6-c7+ Ke5-d4 67.Bc7-f4 b7-b5
-+ (-1.61) Depth: 24/57 00:01:15 90533kN
53.Bg3-h2 Bd5-e6 54.a3-a4 a6-a5 55.Kf2-g3 Be6-d7 56.Bh2-g1 Kd3-c4 57.Bg1-b6 Kc4-b4 58.b2-b3 Kb4xb3 59.Bb6xa5 Kb3xa4 60.Ba5-b6 Ka4-b5 61.Bb6-d4 Kb5-c4 62.Bd4-b6 Kc4-d5 63.Kg3-h2 Bd7-e6 64.Kh2-g3 Kd5-e4 65.Bb6-c7 b7-b5 66.Bc7-d6 Ke4-f5 67.Bd6-c5
-+ (-1.70) Depth: 25/63 00:02:08 153511kN
53.f4-f5 Kd3-e4 54.f5-f6 Ke4-f5 55.Bg3-h4 Kf5-g6 56.Kf2-g1 Kg6-h5 57.Bh4-f2 Kh5-g5 58.Kg1-h2 Kg5xf6 59.Kh2-g3 Kf6-f5 60.Bf2-b6 Bd5-c4 61.a3-a4 Bc4-a2 62.Bb6-d4 Ba2-d5 63.a4-a5 Kf5-e4 64.Bd4-c5 Bd5-b3 65.Bc5-e7 Ke4-f5 66.Be7-d6 Bb3-d5
-+ (-1.69) Depth: 25/81 00:15:19 1038954kN
(, 02.05.2007)
Alternatively you can have test position after 53.a4 or 53.Bh2 when you need to find Kc2 for black.
Uri
Paulo Soares
-
Uri Blass
- Posts: 10281
- Joined: Thu Mar 09, 2006 12:37 am
- Location: Tel-Aviv Israel
Re: test position is it correct?
It seems that you are right.
Here is a possible different position that I analyzed for more time but I also did not analyze all options
Is it correct that Kc2 is the only way to win?
[D]8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54
[Event "Friend mode"]
[Site "?"]
[Date "2007.04.29"]
[Round "?"]
[White "New game"]
[Black "Rybka 2.3.1 32-bit"]
[Result "*"]
[Annotator ",agur"]
[SetUp "1"]
[FEN "8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54"]
[PlyCount "7"]
[EventDate "2007.??.??"]
{512MB, Junior9.ctg, URI-AMD} 54... Kc2 55. Kxg4 (55. a4 a5 56. Kxg4 (56. Bg1
Kxb2 57. Bb6 Kb3 58. Bxa5 Kxa4) 56... Kxb2 57. Kxh3 Kb3 58. Bg1 Kxa4 59. Bb6
Kb4) (55. b4 Kb3 56. Kxg4 (56. Bg1 Kxa3 57. Bc5 Be6 58. Be7 Kb3 59. Bc5 b6 60.
Bxb6 Kxb4) 56... Kxa3 57. f5 Kxb4) (55. Bg1 Kxb2 56. Bc5 Be6) 55... Kxb2 56. a4
Kb3 57. a5 Ka4 *
Here is a possible different position that I analyzed for more time but I also did not analyze all options
Is it correct that Kc2 is the only way to win?
[D]8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54
[Event "Friend mode"]
[Site "?"]
[Date "2007.04.29"]
[Round "?"]
[White "New game"]
[Black "Rybka 2.3.1 32-bit"]
[Result "*"]
[Annotator ",agur"]
[SetUp "1"]
[FEN "8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54"]
[PlyCount "7"]
[EventDate "2007.??.??"]
{512MB, Junior9.ctg, URI-AMD} 54... Kc2 55. Kxg4 (55. a4 a5 56. Kxg4 (56. Bg1
Kxb2 57. Bb6 Kb3 58. Bxa5 Kxa4) 56... Kxb2 57. Kxh3 Kb3 58. Bg1 Kxa4 59. Bb6
Kb4) (55. b4 Kb3 56. Kxg4 (56. Bg1 Kxa3 57. Bc5 Be6 58. Be7 Kb3 59. Bc5 b6 60.
Bxb6 Kxb4) 56... Kxa3 57. f5 Kxb4) (55. Bg1 Kxb2 56. Bc5 Be6) 55... Kxb2 56. a4
Kb3 57. a5 Ka4 *
-
Uri Blass
- Posts: 10281
- Joined: Thu Mar 09, 2006 12:37 am
- Location: Tel-Aviv Israel
Re: test position is it correct?
Here toga1.2.1a can find Kc2 relatively fast
82: New game - Rybka 2.3.1 32-bit, Friend mode 2007
[D]8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 1
Analysis by Toga II 1.2.1a:
54...Kd3-c2 55.Kg3xg4 Kc2xb2 56.Kg4xh3 Kb2xa3
³ (-0.70) Depth: 1/5 00:00:00
54...Kd3-e4 55.Kg3xg4 Bc4-e6+ 56.Kg4-g3
µ (-0.78) Depth: 1/6 00:00:00
54...Bc4-e6
µ (-1.35) Depth: 1/6 00:00:00
54...Bc4-e6 55.Bh2-g1
µ (-1.32) Depth: 2/6 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4
µ (-1.29) Depth: 3/6 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-c5
µ (-1.25) Depth: 4/7 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-c5 a6-a5
µ (-1.14) Depth: 5/8 00:00:00
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b3
µ (-1.22) Depth: 6/9 00:00:00 6kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.b2-b3 Kd5-e4
µ (-1.17) Depth: 7/11 00:00:00 9kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.Bb6-a5 Be6-f5 58.Ba5-c3
µ (-1.26) Depth: 8/13 00:00:00 14kN
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b4 Ke4-d5 58.Bc5-e3 Kd5-e4
µ (-1.19) Depth: 9/13 00:00:01 23kN
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b4 Ke4-f5 58.Bc5-b6 Be6-d5 59.Bb6-d4
µ (-1.24) Depth: 10/14 00:00:01 42kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.b2-b4 Kd5-e4 58.a3-a4 Be6-d7 59.Bb6-c5 Bd7-e6
µ (-1.17) Depth: 11/16 00:00:01 74kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Be6-d5 57.b2-b4 Bd5-e6 58.Bb6-c5 b7-b5 59.Bc5-b6 Ke4-d3 60.Bb6-c5
µ (-1.19) Depth: 12/18 00:00:01 123kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.Bb6-d4 Be6-b3 58.Bd4-c3 Bb3-d5 59.Bc3-d4 Kf5-e4 60.Bd4-c5 Ke4-f5
µ (-1.17) Depth: 13/23 00:00:01 245kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.a3-a4 Be6-d7 58.a4-a5 Kf5-e4 59.Bb6-c5 Bd7-e6 60.Bc5-e7 Ke4-d4 61.Be7-f6+ Kd4-e4
µ (-1.18) Depth: 14/24 00:00:01 320kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.a3-a4 Kf5-e4 58.Bb6-c5 b7-b5 59.a4-a5 Be6-b3 60.Bc5-b6 Ke4-f5 61.Bb6-d4 Bb3-d5
µ (-1.18) Depth: 15/24 00:00:01 595kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 b7-b5 57.Bc5-b6 a5-a4 58.Bb6-c5 Kd3-e4 59.Bc5-b6 Ke4-f5 60.Bb6-e3 Be6-d5 61.Be3-c5 Bd5-e4 62.Bc5-d4
µ (-1.22) Depth: 16/24 00:00:02 1101kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 b7-b5 59.Bd4-c3 Kc2-d3 60.Bc3-e5 Kd3-e4 61.Be5-f6 Ke4-e3 62.Bf6-e7 Ke3-e4
µ (-1.21) Depth: 17/25 00:00:02 1365kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-e4 58.Bb6-c5 Ke4-d5 59.Bc5-b6 Be6-f5 60.Bb6-c7 Bf5-d7 61.Bc7-e5 Kd5-e4 62.Be5-d6 b7-b6 63.Bd6-e5
µ (-1.19) Depth: 18/25 00:00:03 1717kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-d7 59.Bc5-b4 Kd3-d4 60.Bb4-c3+ Kd4-e4 61.Bc3-e5 Bd7-b5 62.Be5-f6 Bb5-d3 63.Bf6-e7 Ke4-f5 64.Be7-c5
µ (-1.19) Depth: 19/42 00:00:04 2305kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-c8 59.Bc5-b4 Bc8-d7 60.Bb4-d6 Bd7-e6 61.Bd6-c5 Kd3-e4 62.Bc5-b6 Be6-d7 63.Bb6-c5 Ke4-d5 64.Bc5-e3
µ (-1.19) Depth: 20/42 00:00:04 3081kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-c8 59.Bc5-b4 Bc8-d7 60.Bb4-d6 Bd7-e6 61.Bd6-c5 Kd3-e4 62.Bc5-b4 Ke4-d5 63.Bb4-c3 Be6-d7 64.Bc3-b4 Bd7-f5
µ (-1.18) Depth: 21/42 00:00:06 7678kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-b6
µ (-1.19) Depth: 22/42 00:00:08 9744kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-a5 Bd7-c8 65.Ba5-c7 Bc8-d7
µ (-1.18) Depth: 23/44 00:00:13 16855kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-b6
µ (-1.18) Depth: 24/44 00:00:18 23243kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-e3 Kd5-e4
µ (-1.19) Depth: 25/44 00:00:23 29391kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-e3 b7-b5 67.Be3-b6
µ (-1.18) Depth: 26/44 00:00:34 44319kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b4 Bd7-e6 62.Bb4-c5 b7-b5 63.Bc5-b6 Ke4-f5 64.Bb6-e3 Be6-d5 65.Be3-c5 Bd5-f3 66.Bc5-e3 Bf3-e4 67.Be3-d4 Be4-d5
µ (-1.18) Depth: 27/51 00:01:16 99176kN
54...Kd3-c2 55.Kg3xg4 Kc2xb2 56.a3-a4 Kb2-b3 57.a4-a5 Kb3-a4 58.Kg4xh3 Ka4xa5 59.Kh3-g3 b7-b5 60.Bh2-g1 b5-b4 61.Bg1-d4 Ka5-b5 62.Kg3-f2 a6-a5 63.f4-f5 a5-a4 64.Kf2-e3 a4-a3 65.Ke3-d2 b4-b3 66.Kd2-c1 Bc4-d5 67.Bd4-e5 Kb5-c4 68.f5-f6 Kc4-c5 69.Kc1-d2 Bd5-c4 70.Kd2-c1
-+ (-1.58) Depth: 27/63 00:02:24 186232kN
(, 03.05.2007)
82: New game - Rybka 2.3.1 32-bit, Friend mode 2007
[D]8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 1
Analysis by Toga II 1.2.1a:
54...Kd3-c2 55.Kg3xg4 Kc2xb2 56.Kg4xh3 Kb2xa3
³ (-0.70) Depth: 1/5 00:00:00
54...Kd3-e4 55.Kg3xg4 Bc4-e6+ 56.Kg4-g3
µ (-0.78) Depth: 1/6 00:00:00
54...Bc4-e6
µ (-1.35) Depth: 1/6 00:00:00
54...Bc4-e6 55.Bh2-g1
µ (-1.32) Depth: 2/6 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4
µ (-1.29) Depth: 3/6 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-c5
µ (-1.25) Depth: 4/7 00:00:00
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-c5 a6-a5
µ (-1.14) Depth: 5/8 00:00:00
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b3
µ (-1.22) Depth: 6/9 00:00:00 6kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.b2-b3 Kd5-e4
µ (-1.17) Depth: 7/11 00:00:00 9kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.Bb6-a5 Be6-f5 58.Ba5-c3
µ (-1.26) Depth: 8/13 00:00:00 14kN
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b4 Ke4-d5 58.Bc5-e3 Kd5-e4
µ (-1.19) Depth: 9/13 00:00:01 23kN
54...Bc4-e6 55.Bh2-g1 b7-b5 56.Bg1-c5 Kd3-e4 57.b2-b4 Ke4-f5 58.Bc5-b6 Be6-d5 59.Bb6-d4
µ (-1.24) Depth: 10/14 00:00:01 42kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-d5 57.b2-b4 Kd5-e4 58.a3-a4 Be6-d7 59.Bb6-c5 Bd7-e6
µ (-1.17) Depth: 11/16 00:00:01 74kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Be6-d5 57.b2-b4 Bd5-e6 58.Bb6-c5 b7-b5 59.Bc5-b6 Ke4-d3 60.Bb6-c5
µ (-1.19) Depth: 12/18 00:00:01 123kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.Bb6-d4 Be6-b3 58.Bd4-c3 Bb3-d5 59.Bc3-d4 Kf5-e4 60.Bd4-c5 Ke4-f5
µ (-1.17) Depth: 13/23 00:00:01 245kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.a3-a4 Be6-d7 58.a4-a5 Kf5-e4 59.Bb6-c5 Bd7-e6 60.Bc5-e7 Ke4-d4 61.Be7-f6+ Kd4-e4
µ (-1.18) Depth: 14/24 00:00:01 320kN
54...Bc4-e6 55.Bh2-g1 Kd3-e4 56.Bg1-b6 Ke4-f5 57.a3-a4 Kf5-e4 58.Bb6-c5 b7-b5 59.a4-a5 Be6-b3 60.Bc5-b6 Ke4-f5 61.Bb6-d4 Bb3-d5
µ (-1.18) Depth: 15/24 00:00:01 595kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 b7-b5 57.Bc5-b6 a5-a4 58.Bb6-c5 Kd3-e4 59.Bc5-b6 Ke4-f5 60.Bb6-e3 Be6-d5 61.Be3-c5 Bd5-e4 62.Bc5-d4
µ (-1.22) Depth: 16/24 00:00:02 1101kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 b7-b5 59.Bd4-c3 Kc2-d3 60.Bc3-e5 Kd3-e4 61.Be5-f6 Ke4-e3 62.Bf6-e7 Ke3-e4
µ (-1.21) Depth: 17/25 00:00:02 1365kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-e4 58.Bb6-c5 Ke4-d5 59.Bc5-b6 Be6-f5 60.Bb6-c7 Bf5-d7 61.Bc7-e5 Kd5-e4 62.Be5-d6 b7-b6 63.Bd6-e5
µ (-1.19) Depth: 18/25 00:00:03 1717kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-d7 59.Bc5-b4 Kd3-d4 60.Bb4-c3+ Kd4-e4 61.Bc3-e5 Bd7-b5 62.Be5-f6 Bb5-d3 63.Bf6-e7 Ke4-f5 64.Be7-c5
µ (-1.19) Depth: 19/42 00:00:04 2305kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-c8 59.Bc5-b4 Bc8-d7 60.Bb4-d6 Bd7-e6 61.Bd6-c5 Kd3-e4 62.Bc5-b6 Be6-d7 63.Bb6-c5 Ke4-d5 64.Bc5-e3
µ (-1.19) Depth: 20/42 00:00:04 3081kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Be6-f5 58.Bb6-c5 Bf5-c8 59.Bc5-b4 Bc8-d7 60.Bb4-d6 Bd7-e6 61.Bd6-c5 Kd3-e4 62.Bc5-b4 Ke4-d5 63.Bb4-c3 Be6-d7 64.Bc3-b4 Bd7-f5
µ (-1.18) Depth: 21/42 00:00:06 7678kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-b6
µ (-1.19) Depth: 22/42 00:00:08 9744kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-a5 Bd7-c8 65.Ba5-c7 Bc8-d7
µ (-1.18) Depth: 23/44 00:00:13 16855kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-b6
µ (-1.18) Depth: 24/44 00:00:18 23243kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-e3 Kd5-e4
µ (-1.19) Depth: 25/44 00:00:23 29391kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b6 Bd7-f5 62.Bb6-c7 Bf5-e6 63.Bc7-b6 Be6-d7 64.Bb6-c5 Ke4-d5 65.Bc5-g1 Bd7-e6 66.Bg1-e3 b7-b5 67.Be3-b6
µ (-1.18) Depth: 26/44 00:00:34 44319kN
54...Bc4-e6 55.Bh2-g1 a6-a5 56.Bg1-c5 a5-a4 57.Bc5-b6 Kd3-c2 58.Bb6-d4 Be6-d7 59.Bd4-c3 Kc2-d3 60.Bc3-a5 Kd3-e4 61.Ba5-b4 Bd7-e6 62.Bb4-c5 b7-b5 63.Bc5-b6 Ke4-f5 64.Bb6-e3 Be6-d5 65.Be3-c5 Bd5-f3 66.Bc5-e3 Bf3-e4 67.Be3-d4 Be4-d5
µ (-1.18) Depth: 27/51 00:01:16 99176kN
54...Kd3-c2 55.Kg3xg4 Kc2xb2 56.a3-a4 Kb2-b3 57.a4-a5 Kb3-a4 58.Kg4xh3 Ka4xa5 59.Kh3-g3 b7-b5 60.Bh2-g1 b5-b4 61.Bg1-d4 Ka5-b5 62.Kg3-f2 a6-a5 63.f4-f5 a5-a4 64.Kf2-e3 a4-a3 65.Ke3-d2 b4-b3 66.Kd2-c1 Bc4-d5 67.Bd4-e5 Kb5-c4 68.f5-f6 Kc4-c5 69.Kc1-d2 Bd5-c4 70.Kd2-c1
-+ (-1.58) Depth: 27/63 00:02:24 186232kN
(, 03.05.2007)
-
Kirk
- Posts: 5699
- Joined: Sat Mar 11, 2006 3:44 am
Re: test position is it correct?
On this position Ktulu calculates Kc2 as best but Rybka Winfinder and Deep Sjeng select Be6
Analysis by Ktulu 7.5:
1. -+ (-1.47): 1...Kc2 2.Kxg4 Kxb2 3.a4 Kb3 4.a5 Ka4 5.Kxh3 Kxa5 6.f5 b5 7.Kg4 b4 8.Bf4 Kb5 9.Kg5 a5 10.Bd6 a4 11.Kf6
2. µ (-1.29): 1...Be6 2.Bg1 a5 3.Bc5 a4 4.Bd6 b5 5.Be5 Ke4 6.Bd6 Kd5 7.Be5 Bf5 8.Bc7 Bd3 9.Be5 Bc4 10.Bc7 Ke4 11.Be5 Bb3 12.Bc7 Bf7 13.Be5 Bc4
3. µ (-1.28): 1...b5 2.Bg1 Kc2 3.Bd4 Bd3 4.Be5 Kb3 5.Bd4 a5 6.Be5 a4 7.Bd4 Kc4 8.Be5 b4 9.axb4 Kxb4 10.Bd6+ Kb3 11.Be5 Kc4 12.Bd6 Be4 13.Be5 Kb4 14.Bd6+
Analysis by Rybka WinFinder 2.2 mp 32-bit:
1. µ (-1.00): 1...Be6 2.Bg1 Kc2 3.Bd4 a5 4.Be5 a4 5.Bd4 Kd3 6.Bb6 Ke4 7.Bc5 Bd7 8.Bb6
2. ³ (-0.60): 1...Kc2 2.Kxg4 Kxb2 3.a4 a5 4.Kxh3 Kb3 5.f5 Kxa4 6.f6 Kb3 7.Kg4 a4
Analysis by Deep Sjeng 2.5:
1. -+ (-1.46): 1...Be6 2.Bg1 Kc2 3.Bd4 a5 4.Be5 a4 5.Bf6 Kd3 6.Be7 b5 7.Bc5 Ke4 8.Bg1 Kf5 9.Bf2 Bf7 10.Bg1 Bb3
2. µ (-1.14): 1...a5 2.Kxg4 Kc2 3.f5 Kxb2 4.a4 Kb3 5.Kxh3 Kxa4 6.Kg4 Kb3 7.Kf4 b5 8.Ke5 a4 9.f6 a3 10.Kd6 b4
3. µ (-1.14): 1...Kc2 2.f5 Kxb2 3.a4 a5 4.Kxg4 Kb3 5.Kxh3 Kxa4 6.Kg4 Kb3 7.Kf4 b5 8.Ke5 a4 9.f6 a3 10.Kd6 b4
Analysis by Ktulu 7.5:
1. -+ (-1.47): 1...Kc2 2.Kxg4 Kxb2 3.a4 Kb3 4.a5 Ka4 5.Kxh3 Kxa5 6.f5 b5 7.Kg4 b4 8.Bf4 Kb5 9.Kg5 a5 10.Bd6 a4 11.Kf6
2. µ (-1.29): 1...Be6 2.Bg1 a5 3.Bc5 a4 4.Bd6 b5 5.Be5 Ke4 6.Bd6 Kd5 7.Be5 Bf5 8.Bc7 Bd3 9.Be5 Bc4 10.Bc7 Ke4 11.Be5 Bb3 12.Bc7 Bf7 13.Be5 Bc4
3. µ (-1.28): 1...b5 2.Bg1 Kc2 3.Bd4 Bd3 4.Be5 Kb3 5.Bd4 a5 6.Be5 a4 7.Bd4 Kc4 8.Be5 b4 9.axb4 Kxb4 10.Bd6+ Kb3 11.Be5 Kc4 12.Bd6 Be4 13.Be5 Kb4 14.Bd6+
Analysis by Rybka WinFinder 2.2 mp 32-bit:
1. µ (-1.00): 1...Be6 2.Bg1 Kc2 3.Bd4 a5 4.Be5 a4 5.Bd4 Kd3 6.Bb6 Ke4 7.Bc5 Bd7 8.Bb6
2. ³ (-0.60): 1...Kc2 2.Kxg4 Kxb2 3.a4 a5 4.Kxh3 Kb3 5.f5 Kxa4 6.f6 Kb3 7.Kg4 a4
Analysis by Deep Sjeng 2.5:
1. -+ (-1.46): 1...Be6 2.Bg1 Kc2 3.Bd4 a5 4.Be5 a4 5.Bf6 Kd3 6.Be7 b5 7.Bc5 Ke4 8.Bg1 Kf5 9.Bf2 Bf7 10.Bg1 Bb3
2. µ (-1.14): 1...a5 2.Kxg4 Kc2 3.f5 Kxb2 4.a4 Kb3 5.Kxh3 Kxa4 6.Kg4 Kb3 7.Kf4 b5 8.Ke5 a4 9.f6 a3 10.Kd6 b4
3. µ (-1.14): 1...Kc2 2.f5 Kxb2 3.a4 a5 4.Kxg4 Kb3 5.Kxh3 Kxa4 6.Kg4 Kb3 7.Kf4 b5 8.Ke5 a4 9.f6 a3 10.Kd6 b4
“He knew all the tricks, dramatic irony, metaphor, pathos, puns, parody, litotes and... satire. He was vicious”
-
PauloSoare
- Posts: 1335
- Joined: Thu Mar 09, 2006 5:30 am
- Location: Cabo Frio, Brasil
Re: test position is it correct?
I have analysed if Kc2 is a winning move very depth. Chess is very dificult, at least for me.Uri Blass wrote:It seems that you are right.
Here is a possible different position that I analyzed for more time but I also did not analyze all options
Is it correct that Kc2 is the only way to win?
[D]8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54
[Event "Friend mode"]
[Site "?"]
[Date "2007.04.29"]
[Round "?"]
[White "New game"]
[Black "Rybka 2.3.1 32-bit"]
[Result "*"]
[Annotator ",agur"]
[SetUp "1"]
[FEN "8/1p6/p7/8/2b2Pp1/P2k2Kp/1P5B/8 b - - 0 54"]
[PlyCount "7"]
[EventDate "2007.??.??"]
{512MB, Junior9.ctg, URI-AMD} 54... Kc2 55. Kxg4 (55. a4 a5 56. Kxg4 (56. Bg1
Kxb2 57. Bb6 Kb3 58. Bxa5 Kxa4) 56... Kxb2 57. Kxh3 Kb3 58. Bg1 Kxa4 59. Bb6
Kb4) (55. b4 Kb3 56. Kxg4 (56. Bg1 Kxa3 57. Bc5 Be6 58. Be7 Kb3 59. Bc5 b6 60.
Bxb6 Kxb4) 56... Kxa3 57. f5 Kxb4) (55. Bg1 Kxb2 56. Bc5 Be6) 55... Kxb2 56. a4
Kb3 57. a5 Ka4 *
I think that 54...Kc2 it´s the only winning move.
Paulo Soares