This is a position played by Deuterium as white in one of those games in the tour at https://www.g-sei.org/.
What is the bestmove?
[d]2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 32
A position that white might win
Moderators: hgm, Rebel, chrisw
-
Ferdy
- Posts: 4833
- Joined: Sun Aug 10, 2008 3:15 pm
- Location: Philippines
-
Nay Lin Tun
- Posts: 708
- Joined: Mon Jan 16, 2012 6:34 am
Re: A position that white might win
I think white win with f5!!
First I thought black was winning.
( I saw f5 later)
First I thought black was winning.
( I saw f5 later)
Last edited by Nay Lin Tun on Tue Apr 02, 2019 8:48 am, edited 2 times in total.
-
Nordlandia
- Posts: 2821
- Joined: Fri Sep 25, 2015 9:38 pm
- Location: Sortland, Norway
Re: A position that white might win
32.f5 is winning according stockfish dev.
New game Line
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 1
Analysis by Stockfish 310319 64 BMI2:
32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5 35.Kh2 b4 36.Nh5 Qg4 37.Qh6+ Ke7 38.Nf6 Qg6 39.Qe3 h5 40.Qb6 Kf8 41.Qd6+ Kg7 42.Ne8+ Rxe8 43.Qxc7 Ra8 44.Ng5 d4 45.Qd7 f4 46.Qxd4 Nd5 47.Qc4 Qf5 48.Kg1 Qg4 49.Qb5 a4 50.Qd7 Rf8 51.Qxa4 Ne3 52.Qa2 Qxh4 53.Nf3 Qg4 54.Qd2 b3 55.Nd4 Qh4
White is clearly better: +- (2.08 --) Depth: 35/57 00:01:03 961MN, tb=174234
(02.04.2019)
New game Line
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 1
Analysis by Stockfish 310319 64 BMI2:
32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5 35.Kh2 b4 36.Nh5 Qg4 37.Qh6+ Ke7 38.Nf6 Qg6 39.Qe3 h5 40.Qb6 Kf8 41.Qd6+ Kg7 42.Ne8+ Rxe8 43.Qxc7 Ra8 44.Ng5 d4 45.Qd7 f4 46.Qxd4 Nd5 47.Qc4 Qf5 48.Kg1 Qg4 49.Qb5 a4 50.Qd7 Rf8 51.Qxa4 Ne3 52.Qa2 Qxh4 53.Nf3 Qg4 54.Qd2 b3 55.Nd4 Qh4
White is clearly better: +- (2.08 --) Depth: 35/57 00:01:03 961MN, tb=174234
(02.04.2019)
-
Ferdy
- Posts: 4833
- Joined: Sun Aug 10, 2008 3:15 pm
- Location: Philippines
Re: A position that white might win
In the game f5 was played, here is the full game.
[pgn] [Event "Igwt_Guest"] [Site "https://www.g-sei.org/"] [Date "2019.03.26"] [Round "3"] [White "Deuterium 2019.2.37.31"] [Black "Andscacs 095105"] [Result "1/2-1/2"] [Annotator "Gsei"] [BlackAuthor "Daniel Jose Queralto"] [BlackAverageDepth "28"] [BlackBit "64"] [BlackBook "minibook"] [BlackCores "multicore"] [BlackElo "3279"] [BlackFirstScore "-0.22 at move 4"] [BlackLanguage "C"] [BlackTablebase "no"] [BlackType "program"] [ECO "C11"] [Opening "French"] [Termination "normal"] [Time "16:25:26"] [TimeControl "15 min + 10 sec"] [Variation "Steinitz, Boleslavsky, 7...cxd4 8.Nxd4 Qb6"] [WhiteAuthor "Ferdinand Mosca"] [WhiteAverageDepth "29"] [WhiteBit "64"] [WhiteBook "yes"] [WhiteCores "single core"] [WhiteElo "2893"] [WhiteFirstScore "-0.37 at move 11"] [WhiteLanguage "C"] [WhiteTablebase "no"] [WhiteType "program"] 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 cxd4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Bd2 Bxd2+ 13.Nxd2 b6 14.Rb1 Ba6 15.Bxa6 Qxa6 16.Nf3 O-O 17.Nxd4 Rac8 18.h4 Rc4 19.Nb2 Qa5+ 20.Ke2 Rc3 21.Kf2 Nc5 22.Rf1 Ne4+ 23.Kg1 g6 24.Nd3 Rc4 25.Nb2 Rcc8 26.Rc1 Qxa2 27.Nd3 Nc3 28.Qc2 Qc4 29.Nf3 Rc7 30.Qd2 Rfc8 31.Rfe1 a5 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8 35.Kh1 Kd7 36.Qg7 Qxf4 37.Qxf7+ Kd8 38.Qf8+ Kd7 39.Qf7+ Kd8 40.Qf8+ Kd7 41.Qf7+ 1/2-1/2 [/pgn]
[pgn] [Event "Igwt_Guest"] [Site "https://www.g-sei.org/"] [Date "2019.03.26"] [Round "3"] [White "Deuterium 2019.2.37.31"] [Black "Andscacs 095105"] [Result "1/2-1/2"] [Annotator "Gsei"] [BlackAuthor "Daniel Jose Queralto"] [BlackAverageDepth "28"] [BlackBit "64"] [BlackBook "minibook"] [BlackCores "multicore"] [BlackElo "3279"] [BlackFirstScore "-0.22 at move 4"] [BlackLanguage "C"] [BlackTablebase "no"] [BlackType "program"] [ECO "C11"] [Opening "French"] [Termination "normal"] [Time "16:25:26"] [TimeControl "15 min + 10 sec"] [Variation "Steinitz, Boleslavsky, 7...cxd4 8.Nxd4 Qb6"] [WhiteAuthor "Ferdinand Mosca"] [WhiteAverageDepth "29"] [WhiteBit "64"] [WhiteBook "yes"] [WhiteCores "single core"] [WhiteElo "2893"] [WhiteFirstScore "-0.37 at move 11"] [WhiteLanguage "C"] [WhiteTablebase "no"] [WhiteType "program"] 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Qb6 8.Na4 Qa5+ 9.c3 cxd4 10.b4 Nxb4 11.cxb4 Bxb4+ 12.Bd2 Bxd2+ 13.Nxd2 b6 14.Rb1 Ba6 15.Bxa6 Qxa6 16.Nf3 O-O 17.Nxd4 Rac8 18.h4 Rc4 19.Nb2 Qa5+ 20.Ke2 Rc3 21.Kf2 Nc5 22.Rf1 Ne4+ 23.Kg1 g6 24.Nd3 Rc4 25.Nb2 Rcc8 26.Rc1 Qxa2 27.Nd3 Nc3 28.Qc2 Qc4 29.Nf3 Rc7 30.Qd2 Rfc8 31.Rfe1 a5 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8 35.Kh1 Kd7 36.Qg7 Qxf4 37.Qxf7+ Kd8 38.Qf8+ Kd7 39.Qf7+ Kd8 40.Qf8+ Kd7 41.Qf7+ 1/2-1/2 [/pgn]
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: A position that white might win
And Cfish-dev has:Nordlandia wrote: ↑Tue Apr 02, 2019 8:46 am 32.f5 is winning according stockfish dev.
New game Line
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 1
Analysis by Stockfish 310319 64 BMI2:
32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5 35.Kh2 b4 36.Nh5 Qg4 37.Qh6+ Ke7 38.Nf6 Qg6 39.Qe3 h5 40.Qb6 Kf8 41.Qd6+ Kg7 42.Ne8+ Rxe8 43.Qxc7 Ra8 44.Ng5 d4 45.Qd7 f4 46.Qxd4 Nd5 47.Qc4 Qf5 48.Kg1 Qg4 49.Qb5 a4 50.Qd7 Rf8 51.Qxa4 Ne3 52.Qa2 Qxh4 53.Nf3 Qg4 54.Qd2 b3 55.Nd4 Qh4
White is clearly better: +- (2.08 --) Depth: 35/57 00:01:03 961MN, tb=174234
(02.04.2019)
+4.79 32. f5 gxf5 33. Qg5+ Kf8 34. Nf4 Ke8 35. Rxc3 Qxc3 36. Nh5 Re7 37. Nf6+ Kd8 38. Kh2 Qc5 39. Rd1 f4 40. Qxf4 Qb4 41. Qg5 Kc7 42. Rxd5 Kb7 43. Ne4 Qxe4 44. Rd4 Qc2 45. Qxe7+ Rc7 46. Qg5 Rc4 47. Rd7+ Rc7 48. Rd2 Qe4 49. Rd4 Qe2 50. Qd8 Qe3 51. h5 Qc1 52. Qf8 Ka7 53. Qg8 h6 54. Qf8 Qe3 55. Qe8 Qc1 56. Kg3 Kb7 57. Rd8 Qc5 58. Kh2 Qc1 59. Rb8+ Ka7 60. Ra8+ Kb7 61. Qb8+ Kc6 62. Kg3 Qc3 63. Qg8 Kb7 64. Rb8+ Ka6 65. Qe8 Ka7 66. Ra8+ Kb7 67. Kh3 Qc4 68. Qb8+ Kc6 69. Qd8 Kb7 70. Rb8+ Ka6 71. Kg3 (depth 59, 8:05:12)
-
Eelco de Groot
- Posts: 4567
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: A position that white might win
Old Kaissa III would prefer 33...Kh8 instead of going to f8 and the score does not rise so much anymore. But it probably means not so much and also no tablebases were used.
Code: Select all
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - -
Engine: Kaissa III (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
20/15 0:02 +0.19 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 Qb4
35.Rc2 Na4 36.Rxc7 Rxc7 37.Qxb4 axb4
38.Rb1 Rc4 39.Nd3 Nc5 40.Nxb4 Rxf4
41.Nc6 (6.236.179) 2313
21/11 0:03 +0.27++ 32.h5 (7.191.599) 2313
21/11 0:03 +0.34++ 32.h5 (7.386.200) 2314
21/11 0:03 +0.45++ 32.h5 (7.808.444) 2315
21/15 0:03 +0.61++ 32.h5 (8.259.988) 2314
21/18 0:03 +0.24 32.h5 gxh5 33.Kh2 Ne4 34.Rxc4 Nxd2
35.Rxc7 Nxf3+ 36.Kg3 Rxc7 37.Kxf3 Rc2
38.Rh1 a4 39.Ra1 b5 40.Ke3 Rxg2
41.Kd4 (8.303.187) 2314
22/11 0:04 +0.31++ 32.h5 (9.924.049) 2325
22/15 0:04 +0.39++ 32.h5 (10.409.357) 2317
22/15 0:04 +0.50++ 32.h5 (10.437.388) 2316
22/16 0:04 +0.33 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 d4
35.f5 exf5 36.Qg5 Qe6 37.Nxd4 Qg6
38.Qxf5 Rc4 39.Qf6+ Qxf6 40.exf6 b5 (10.526.834) 2307
23/12 0:05 +0.40++ 32.h5 (12.223.650) 2310
23/12 0:05 +0.48++ 32.h5 (13.529.829) 2306
23/17 0:06 +0.59++ 32.h5 (15.486.422) 2304
23/17 0:07 +0.67 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 b5
35.f5 exf5 36.Qg5 b4 37.Qf6+ Kg8
38.Qxf5 h6 39.Qxh5 Rc6 40.e6 Qf4+
41.g3 (17.727.435) 2305
24/11 0:08 +0.59-- 32.h5 gxh5 (18.736.947) 2303
24/12 0:08 +0.52-- 32.h5 gxh5 (18.899.937) 2305
24/12 0:08 +0.40-- 32.h5 gxh5 (19.285.199) 2304
24/12 0:08 +0.50++ 32.h5 (20.160.019) 2305
24/18 0:09 +0.25-- 32.h5 gxh5 (21.720.762) 2310
24/18 0:09 +0.25 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 b5
35.f5 exf5 36.Qh6 Qc6 37.e6 Qd6+
38.g3 fxe6 39.Ng5 Qe7 40.Rxe6 (22.151.994) 2312
25/15 0:12 +0.33++ 32.h5 (28.272.665) 2305
25/15 0:12 +0.40++ 32.h5 (28.787.633) 2306
25/18 0:13 +0.52++ 32.h5 (30.876.849) 2310
25/20 0:13 +0.46 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 Qb4
35.f5 exf5 36.Qg5 Qe7 37.Qxf5 Qe6
38.Qxh5 b5 39.Ng5 Qg6 40.Qxg6 fxg6 (32.257.903) 2310
26/19 0:15 +0.54++ 32.h5 (36.573.650) 2312
26/19 0:16 +0.39-- 32.h5 gxh5 (37.795.945) 2314
26/19 0:16 +0.50++ 32.h5 (39.354.209) 2316
26/19 0:17 +0.66++ 32.h5 (39.694.027) 2317
26/19 0:17 +0.41 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 Qa2
35.Qe3 b5 36.f5 d4 37.Qxd4 Qc4
38.Qe3 exf5 39.Qg5 Qe6 40.Nd4 Qg6
41.Qf6+ Qxf6 42.exf6 (40.761.500) 2318
27/17 0:21 +0.49++ 32.h5 (50.396.380) 2313
27/19 0:22 +0.56++ 32.h5 (52.939.645) 2315
27/19 0:26 +0.67++ 32.h5 (60.527.275) 2312
27/19 0:26 +0.60 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 b5
35.f5 exf5 36.Qg5 b4 37.Qf6+ Kg8
38.Qxf5 h6 39.Qxh5 Qf4+ 40.g3 (60.919.737) 2312
28/17 0:27 +0.67++ 32.h5 (64.510.073) 2315
28/17 0:29 +0.52-- 32.h5 gxh5 (68.422.765) 2308
28/17 0:31 +0.41-- 32.h5 gxh5 (72.462.183) 2313
28/17 0:35 +0.52++ 32.h5 (81.324.940) 2317
28/17 0:37 +0.74++ 32.h5 (86.230.556) 2320
28/20 0:37 +0.67 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 b5
35.f5 exf5 36.Qg5 Qc6 37.e6 Qd6+
38.Kh1 fxe6 39.Qf6+ Kg8 40.Rxe6 Qf4
41.Rce1 Ne4 (86.628.052) 2320
29/17 0:57 +0.74++ 32.h5 (139.245.381) 2431
29/17 1:01 +0.82++ 32.h5 (150.357.946) 2428
29/17 1:07 +0.59-- 32.h5 gxh5 (164.679.345) 2423
29/17 1:08 +0.76++ 32.h5 (166.106.110) 2423
29/17 1:12 +0.97++ 32.h5 (175.529.547) 2423
29/24 1:14 +0.98 32.h5 gxh5 33.Kh2 Kh8 34.Nf2 b5
35.f5 exf5 36.Qg5 Qc6 37.e6 Qd6+
38.Kh1 fxe6 39.Qf6+ Kg8 40.Rxe6 Ne4
41.Rxc7 Nxf2+ 42.Kg1 Qxc7 43.Kxf2 Qg7
44.Qxf5 (181.152.266) 2421
30/18 1:39 +0.91-- 32.h5 a4 (240.832.738) 2409
30/26 1:41 +0.83-- 32.h5 a4 (245.520.417) 2409
30/26 1:42 +0.91++ 32.h5 (246.083.644) 2409
30/26 1:43 +0.72-- 32.h5 a4 (248.640.809) 2409
30/26 1:44 +0.50-- 32.h5 a4 (251.510.939) 2410
30/26 1:47 +0.65 32.h5 a4 33.hxg6 hxg6 34.f5 gxf5
35.Qg5+ Kf8 36.Nf4 Ke8 37.Re3 d4
38.Rd3 Qxd3 39.Nxd3 Ne2+ 40.Kf1 Nxc1 (258.780.047) 2409
31/16 1:57 +0.58-- 32.h5 a4 (283.754.552) 2411
31/19 2:01 +0.50-- 32.h5 a4 (293.259.433) 2413
31/19 2:40 +0.58++ 32.h5 (386.970.529) 2407
31/19 2:50 +0.73 32.h5 a4 33.Kh2 b5 34.Nf2 b4 35.Ng4 b3
36.Nf6+ Kg7 37.h6+ Kxh6 38.Re3 a3
39.Rexc3 Qxc3 40.Rxc3 Rxc3 (411.224.877) 2407
32/11 2:59 +0.66-- 32.h5 a4 (433.244.297) 2408
32/16 3:08 +0.58-- 32.h5 a4 (453.244.561) 2410
32/17 3:29 +0.66++ 32.f5 (505.568.596) 2411
32/17 3:36 +0.82++ 32.f5 (521.132.867) 2411
32/17 3:39 +1.03++ 32.f5 (529.231.874) 2411
32/17 3:44 +1.32++ 32.f5 (540.950.882) 2412
32/20 3:50 +1.32 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 Qc5+ 37.Kh2 h6
38.Nf6+ Kd8 39.Qg8+ Ke7 40.Qg7 Qb4 (554.888.849) 2411
33/18 4:21 +1.40++ 32.f5 (631.743.827) 2415
33/23 4:29 +1.25-- 32.f5 gxf5 (650.565.327) 2417
33/23 4:32 +1.36++ 32.f5 (659.679.985) 2418
33/23 4:44 +1.52++ 32.f5 (686.809.344) 2413
33/23 4:50 +1.74++ 32.f5 (700.451.853) 2408
33/28 4:52 +1.54 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 Qc5+ 37.Kh2 h6
38.Qxh6 Rc6 39.Qg7 Kd8 40.Nf6 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc5
44.Qg7 Qxg7 45.Nxe6+ (703.944.210) 2408
34/19 5:35 +1.47-- 32.f5 gxf5 (804.912.664) 2401
34/19 5:57 +1.40 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5
35.Kh2 b4 36.Rcd1 b3 37.Nd4 Nxd1
38.Rxd1 b2 39.Qf6 Ke8 40.Nh5 Qc5
41.Ng7+ Kd7 42.Qxf7+ Qe7 (858.749.296) 2404
35/19 6:39 +1.47++ 32.f5 (963.931.179) 2414
35/19 6:50 +1.55++ 32.f5 (992.500.367) 2418
35/19 6:59 +1.66++ 32.f5 (1.014.938.786) 2420
35/19 7:08 +1.82++ 32.f5 (1.036.950.225) 2421
35/28 7:37 +1.97 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Qc5+
35.Kh2 Qe7 36.Qh6+ Ke8 37.Ng5 Kd7
38.Qxh7 Rc4 39.Rf1 b5 40.Nxf7 Rf8
41.Ng5 Qxh7 42.Nxh7 Rfc8 43.Nf6+ Ke7
44.Ng6+ Kf7 45.h5 (1.108.485.351) 2423
36/19 8:27 +1.90-- 32.f5 gxf5 (1.229.786.982) 2425
36/19 8:35 +1.97++ 32.f5 (1.251.808.533) 2426
36/19 9:21 +2.08++ 32.f5 (1.363.161.337) 2426
36/25 10:16 +1.82-- 32.f5 gxf5 (1.493.514.978) 2421
36/25 10:24 +1.60-- 32.f5 gxf5 (1.512.034.733) 2421
36/25 10:32 +1.81 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qb2
38.Qg7 Ke7 39.Nf4 Rc1 40.Nxe6 Rxe1+
41.Nxe1 Qb4 42.Qf6+ Kd7 (1.531.649.390) 2421
37/28 11:27 +1.78 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qa3
38.Nf6+ Kd8 39.Qh8+ Ke7 40.Nxd5+ exd5
41.Qf6+ Ke8 42.e6 fxe6 43.Qxe6+ Kf8
44.Qxf5+ Kg8 45.Qg6+ (1.667.177.972) 2425
38/23 12:02 +1.86++ 32.f5 (1.756.473.316) 2430
38/23 12:19 +1.93++ 32.f5 (1.797.230.219) 2431
38/23 12:37 +1.94 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qc5+
38.Kh2 Rc6 39.Nf6+ Kd8 40.Qg7 b5
41.Qg8+ Ke7 (1.842.525.585) 2432
39/11 12:44 +1.87-- 32.f5 gxf5 (1.858.739.272) 2432
39/19 13:28 +1.94++ 32.f5 (1.973.059.366) 2438
39/25 14:05 +2.05++ 32.f5 (2.064.274.748) 2440
39/33 14:32 +2.02 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qc5+
38.Kh2 Rc6 39.Nf6+ Kd8 40.Qg7 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc4
44.Nxf5 Qb4 45.Rd1 (2.129.891.011) 2442
40/23 17:28 +2.10++ 32.f5 (2.556.649.534) 2438
40/35 18:14 +1.99 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Nf6+ Kd8
38.Qxh6 Qa3 39.Qg7 Rc2 40.Qg8+ Ke7
41.Qg5 Qc5+ 42.Kh2 Kd8 43.Qg8+ Ke7
44.Qg7 Rf8 45.Qg5 (2.665.044.098) 2434
41/21 19:28 +2.06++ 32.f5 (2.848.176.018) 2437
41/21 20:36 +2.14++ 32.f5 (3.020.555.399) 2442
41/27 24:02 +1.95 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qc5+
38.Kh2 Rc6 39.Nf6+ Kd8 40.Qg7 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc4 (3.534.227.012) 2449
42/22 24:30 +1.87-- 32.f5 gxf5 (3.597.394.292) 2445
42/22 27:57 +1.95++ 32.f5 (4.154.048.615) 2476
42/26 29:38 +1.80-- 32.f5 gxf5 (4.392.386.171) 2470
42/26 30:25 +1.93++ 32.f5 (4.506.278.901) 2468
42/37 31:53 +2.15++ 32.f5 (4.715.913.809) 2464
42/39 33:28 +2.17 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Rc6
38.Nf6+ Kd8 39.Qf8+ Kc7 40.Qxf7+ Kb8
41.Ne8 Qc5+ 42.Kh1 Qb4 43.Nd6 R8c7
44.Qg8+ Ka7 45.Rg1 (4.938.755.451) 2459
43/22 36:42 +2.24++ 32.f5 (5.419.678.491) 2460
43/27 42:27 +2.32++ 32.f5 (6.268.359.539) 2460
43/27 43:45 +2.09-- 32.f5 gxf5 (6.458.111.684) 2460
43/27 46:27 +2.26++ 32.f5 (6.858.043.365) 2460
43/40 47:48 +1.93-- 32.f5 gxf5 (7.060.670.633) 2461
43/40 52:17 +2.20++ 32.f5 (7.712.522.364) 2458
43/42 53:08 +1.95 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Kh2 Kd7 36.Re3 Qb4 37.Nh5 Rd8
38.Qf6 Kc8 39.Rcxc3 Rxc3 40.Rxc3+ Qxc3
41.Qxf7 Qc7 42.Qxe6+ Kb7 43.Qxf5 a4
44.Nf4 Qe7 45.Qc2 (7.835.124.790) 2457
44/23 54:45 +1.87-- 32.f5 gxf5 (8.071.788.572) 2456
44/26 58:51 +1.95++ 32.f5 (8.691.042.206) 2461
44/26 59:41 +2.06++ 32.f5 (8.824.468.760) 2463
44/31 60:20 +1.80-- 32.f5 gxf5 (8.918.482.752) 2463
44/31 62:55 +2.01++ 32.f5 (9.293.998.223) 2461
44/44 66:27 +2.30++ 32.f5 (9.798.554.886) 2457
44/45 71:25 +2.34 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Kh2 Kd7 36.Nh5 Rc6 37.Nf6+ Kc7
38.Ng8 b5 39.Ne7 Kb6 40.Red1 R6c7
41.Nxc8+ Rxc8 42.Qg7 Rc7 43.Qg8 b4
44.Nd4 Kb7 45.Qe8 (10.519.144.349) 2454
45/25 77:07 +2.26-- 32.f5 gxf5 (11.437.373.230) 2471
45/25 78:09 +2.19-- 32.f5 gxf5 (11.597.297.305) 2473
45/25 78:23 +2.07-- 32.f5 gxf5 (11.633.383.934) 2473
45/29 78:56 +2.17++ 32.f5 (11.716.559.955) 2473
45/42 82:33 +1.92-- 32.f5 gxf5 (12.244.422.922) 2471
45/42 84:17 +2.15++ 32.f5 (12.497.449.402) 2471
45/46 93:22 +2.36 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Nf6+ Kd8
38.Qxh6 Qc5+ 39.Kh2 Rc6 40.Qg7 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc4
44.Nxf5 Qb4 45.Rd1 (13.864.492.070) 2474
46/24 105:08 +2.29-- 32.f5 gxf5 (15.949.690.031) 2528
46/24 105:20 +2.24 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 a4
41.Nxe6 Rc4 42.Kf2 Kf7 43.Ng5+ Ke7 (15.979.580.357) 2528
47/24 111:05 +2.32++ 32.f5 (16.892.104.785) 2534
47/24 123:15 +2.39++ 32.f5 (18.917.899.605) 2558
47/43 149:20 +2.31 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Nf6+ Kd8
38.Qxh6 Rc6 39.Qf8+ Kc7 40.Qxf7+ Kb8
41.Ne8 Qc5+ 42.Kh2 a4 43.Nd6 Rxd6
44.exd6 Qxd6+ 45.Kh1 (23.195.333.526) 2588
48/24 161:27 +2.39++ 32.f5 (25.040.097.401) 2584
48/33 183:47 +2.24-- 32.f5 gxf5 (28.358.575.584) 2571
48/33 193:32 +2.12-- 32.f5 gxf5 (29.791.456.004) 2565
48/33 195:20 +2.24++ 32.f5 (30.052.079.283) 2564
48/33 213:30 +2.45++ 32.f5 (32.647.342.645) 2548
48/48 227:57 +2.56 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qc5+
38.Kh2 Rc6 39.Nf6+ Kd8 40.Qg7 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc4
44.Nxf5 Qb4 45.Rd1 (34.711.049.750) 2537
49/25 229:17 +2.49-- 32.f5 gxf5 (34.895.306.921) 2536
49/28 253:18 +2.56++ 32.f5 (38.537.184.503) 2535
49/42 257:25 +2.41-- 32.f5 gxf5 (39.131.636.532) 2533
49/42 264:19 +2.54++ 32.f5 (40.179.119.421) 2533
49/59 272:07 +2.49 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Qxh6 Qc5+
38.Kh2 Rc6 39.Qg7 Kd8 40.Nf6 Qb4
41.Qxf7 Qe7 42.Qg6 Kc7 43.Nd4 Rc4
44.Nxf5 Qb4 45.Rd1 (41.516.061.298) 2542
50/30 322:52 +2.56++ 32.f5 (51.233.649.193) 2644
50/35 373:03 +2.64++ 32.f5 (60.363.117.519) 2696
50/35 540:15 +2.75++ 32.f5 (89.043.301.529) 2746
50/36 543:30 +2.65 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 Ke8
35.Rxc3 Qxc3 36.Nh5 h6 37.Nf6+ Kd8
38.Qxh6 Rc6 39.Qf8+ Kc7 40.Qxf7+ Kb8
41.Ne8 Qc5+ 42.Kh2 a4 43.Nd6 Rxd6
44.exd6 Qxd6+ 45.Kh3 (89.498.381.001) 2744
51/34 588:12 +2.58-- 32.f5 gxf5 (97.268.822.090) 2756
51/34 592:07 +2.65++ 32.f5 (97.860.263.508) 2754
51/34 620:54 +2.50-- 32.f5 gxf5 (102.254.422.397) 2744
51/49 634:45 +2.50 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Nd8 b5
41.Nxe6 Rc4 42.Kf2 a4 43.Kf3 b4
44.Nxf4 b3 45.e6 (104.425.015.870) 2741
52/30 640:34 +2.42-- 32.f5 gxf5 (105.347.830.934) 2740
52/30 645:05 +2.35-- 32.f5 gxf5 (106.050.277.223) 2739
52/30 718:34 +2.42++ 32.f5 (120.727.573.609) 2800
52/35 756:58 +2.58++ 32.f5 (128.425.825.094) 2827
52/52 877:26 +2.80++ 32.f5 (149.545.882.680) 2840
52/58 886:39 +2.24-- 32.f5 gxf5 (150.895.448.323) 2836
52/58 892:23 +1.93 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5
41.Kf2 Rc6 42.Ke2 b4 43.Ra1 Ra6
44.Kd3 a4 45.Rb1 (151.754.760.269) 2834
53/27 907:06 +2.01++ 32.f5 (154.214.634.642) 2833
53/36 909:30 +2.08++ 32.f5 (154.619.433.648) 2833
53/36 914:34 +2.20++ 32.f5 (155.457.375.306) 2832
53/36 918:54 +2.35++ 32.f5 (156.144.302.845) 2832
53/36 943:39 +2.57++ 32.f5 (160.417.572.973) 2833
53/59 976:09 +2.01 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5
41.Nxe6 Rc4 42.Kf2 a4 43.Ra1 Kf7
44.Ng5+ Ke7 45.Ke2 (165.504.897.522) 2825
54/28 1004:41+2.09++ 32.f5 (170.187.337.478) 2823
54/28 1012:02+2.16++ 32.f5 (171.404.111.824) 2822
54/28 1028:12+2.27++ 32.f5 (174.233.243.921) 2824
54/28 1034:56+2.43++ 32.f5 (175.239.444.636) 2822
54/60 1056:15+2.10 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5
41.Nxe6 Rc4 42.Kf2 a4 43.Ra1 Kf7
44.Ng5+ Ke7 45.Ke2 (178.499.846.648) 2816
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: A position that white might win
Hi Eelco,Eelco de Groot wrote: ↑Wed Apr 03, 2019 1:09 pm Old Kaissa III would prefer 33...Kh8 instead of going to f8 and the score does not rise so much anymore. But it probably means not so much and also no tablebases were used.
Code: Select all
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - Engine: Kaissa III (512 MB) by T. Romstad, M. Costalba, J. Kiiski, G. Linscott 52/58 892:23 +1.93 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3 35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6 38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5 41.Kf2 Rc6 42.Ke2 b4 43.Ra1 Ra6 44.Kd3 a4 45.Rb1 (151.754.760.269) 2834 53/27 907:06 +2.01++ 32.f5 (154.214.634.642) 2833 53/36 909:30 +2.08++ 32.f5 (154.619.433.648) 2833 53/36 914:34 +2.20++ 32.f5 (155.457.375.306) 2832 53/36 918:54 +2.35++ 32.f5 (156.144.302.845) 2832 53/36 943:39 +2.57++ 32.f5 (160.417.572.973) 2833 53/59 976:09 +2.01 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3 35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6 38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5 41.Nxe6 Rc4 42.Kf2 a4 43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 (165.504.897.522) 2825 54/28 1004:41+2.09++ 32.f5 (170.187.337.478) 2823 54/28 1012:02+2.16++ 32.f5 (171.404.111.824) 2822 54/28 1028:12+2.27++ 32.f5 (174.233.243.921) 2824 54/28 1034:56+2.43++ 32.f5 (175.239.444.636) 2822 54/60 1056:15+2.10 32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3 35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6 38.Nxf7+ Kg8 39.Rxc7 Rxc7 40.Ng5 b5 41.Nxe6 Rc4 42.Kf2 a4 43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 (178.499.846.648) 2816
Cfish-dev had an eval of +7 or so if 33... Kh8. That was using 6-man tables.
Louis
-
Eelco de Groot
- Posts: 4567
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: A position that white might win
Hi Louis, thanks! I guess without tablebases the win is invisible at least to CFish and Stockfish. With CFish not more than 1.12 at shallow depths, so in that respect Kaissa is not so bad 
32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7
[d]6k1/2r2N2/1p2p1p1/p2pP3/5p1P/8/6P1/4R1K1 w - -
Engine: Cfish 170916 64 POPCNT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
40 29:22 +1.12 40.Ng5 b5 41.Nxe6 Rc4 42.Kf2 a4
43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 Rc2+
46.Kd3 Rc4 47.Ra2 Kd7 48.Nf3 Ke6
49.Ra1 Kf5 50.Nd2 Rc7 51.Kd4 Ke6
52.Rb1 f3 53.gxf3 (4.252.530.267) 2413
40 29:22 +1.01 40.Nd8 b5 41.Nxe6 Rc4 42.Kf2 a4
43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 Rc2+
46.Kd3 Rc4 47.Ra2 Kd7 48.Ra3 Kc6
49.Kd2 Kd7 50.Ra2 Ke8 51.Nf3 Kd7
52.Kd3 Ke6 53.Ra1 (4.252.530.267) 2413
40 29:22 +0.45 40.Nd6 a4 41.Ra1 Ra7 42.Kf2 Ra5
43.Kf3 b5 44.Nb7 Ra7 45.Nc5 Kf7
46.Nd3 Rc7 47.Nxf4 Rc3+ 48.Kg4 a3
49.Rf1 Rc2 50.Kg5 a2 51.Nxd5+ Ke8
52.Nb4 Rxg2+ 53.Kh6 (4.252.530.267) 2413
32.f5 gxf5 33.Qg5+ Kh8 34.Qh6 Qxd3
35.Ng5 f4 36.Rxc3 Qg6 37.Qxg6 hxg6
38.Nxf7+ Kg8 39.Rxc7 Rxc7
[d]6k1/2r2N2/1p2p1p1/p2pP3/5p1P/8/6P1/4R1K1 w - -
Engine: Cfish 170916 64 POPCNT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
40 29:22 +1.12 40.Ng5 b5 41.Nxe6 Rc4 42.Kf2 a4
43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 Rc2+
46.Kd3 Rc4 47.Ra2 Kd7 48.Nf3 Ke6
49.Ra1 Kf5 50.Nd2 Rc7 51.Kd4 Ke6
52.Rb1 f3 53.gxf3 (4.252.530.267) 2413
40 29:22 +1.01 40.Nd8 b5 41.Nxe6 Rc4 42.Kf2 a4
43.Ra1 Kf7 44.Ng5+ Ke7 45.Ke2 Rc2+
46.Kd3 Rc4 47.Ra2 Kd7 48.Ra3 Kc6
49.Kd2 Kd7 50.Ra2 Ke8 51.Nf3 Kd7
52.Kd3 Ke6 53.Ra1 (4.252.530.267) 2413
40 29:22 +0.45 40.Nd6 a4 41.Ra1 Ra7 42.Kf2 Ra5
43.Kf3 b5 44.Nb7 Ra7 45.Nc5 Kf7
46.Nd3 Rc7 47.Nxf4 Rc3+ 48.Kg4 a3
49.Rf1 Rc2 50.Kg5 a2 51.Nxd5+ Ke8
52.Nb4 Rxg2+ 53.Kh6 (4.252.530.267) 2413
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
Ferdy
- Posts: 4833
- Joined: Sun Aug 10, 2008 3:15 pm
- Location: Philippines
Re: A position that white might win
In that line:zullil wrote: ↑Wed Apr 03, 2019 12:29 pmAnd Cfish-dev has:Nordlandia wrote: ↑Tue Apr 02, 2019 8:46 am 32.f5 is winning according stockfish dev.
New game Line
2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 1
Analysis by Stockfish 310319 64 BMI2:
32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5 35.Kh2 b4 36.Nh5 Qg4 37.Qh6+ Ke7 38.Nf6 Qg6 39.Qe3 h5 40.Qb6 Kf8 41.Qd6+ Kg7 42.Ne8+ Rxe8 43.Qxc7 Ra8 44.Ng5 d4 45.Qd7 f4 46.Qxd4 Nd5 47.Qc4 Qf5 48.Kg1 Qg4 49.Qb5 a4 50.Qd7 Rf8 51.Qxa4 Ne3 52.Qa2 Qxh4 53.Nf3 Qg4 54.Qd2 b3 55.Nd4 Qh4
White is clearly better: +- (2.08 --) Depth: 35/57 00:01:03 961MN, tb=174234
(02.04.2019)
+4.79 32. f5 gxf5 33. Qg5+ Kf8 34. Nf4 Ke8 35. Rxc3 Qxc3 36. Nh5 Re7 37. Nf6+ Kd8 38. Kh2 Qc5 39. Rd1 f4 40. Qxf4 Qb4 41. Qg5 Kc7 42. Rxd5 Kb7 43. Ne4 Qxe4 44. Rd4 Qc2 45. Qxe7+ Rc7 46. Qg5 Rc4 47. Rd7+ Rc7 48. Rd2 Qe4 49. Rd4 Qe2 50. Qd8 Qe3 51. h5 Qc1 52. Qf8 Ka7 53. Qg8 h6 54. Qf8 Qe3 55. Qe8 Qc1 56. Kg3 Kb7 57. Rd8 Qc5 58. Kh2 Qc1 59. Rb8+ Ka7 60. Ra8+ Kb7 61. Qb8+ Kc6 62. Kg3 Qc3 63. Qg8 Kb7 64. Rb8+ Ka6 65. Qe8 Ka7 66. Ra8+ Kb7 67. Kh3 Qc4 68. Qb8+ Kc6 69. Qd8 Kb7 70. Rb8+ Ka6 71. Kg3 (depth 59, 8:05:12)
Code: Select all
+4.79 32. f5 gxf5 33. Qg5+ Kf8 34. Nf4 Ke8 35. Rxc3 Qxc3