Can White win?

[David Dahlem]

[d]3r4/5p2/4P1P1/8/p5rk/p3B3/P4pPK/6R1 w - - 0 1

This is a 'White to Win' study, can White really win? This is the proposed main line:

1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kg3 8.Kf1 Rg8 9.Bhg7 Kg4 10.Kf2 Kf4 11.g3+ Kg4 12.Kg2 Kf5 13.Kf3 Kg5 14.g4 Kg6 15.Kf4 Kf7 16.Kf5 Rxg7 17.Bxg7 Kxg7 18.Kg5 1-0

Engines disagree with this line starting at 7...Kg3. Mighty Rybka is useless here, since a bishop promotion is required.

StockFire 1.6.3s doesn't really show a decisive score after 6-1/2 minutes:

16- 00:10 10.993.084 1.092.534 +5.25 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8Q Kh4g4+ Qe8xh8 Rg7h7+ Qh8xh7 f2f1N+ Kh2h1 Nf1g3+ Kh1h2 Ng3f1+ Kh2h1
17 00:15 17.527.878 1.164.875 +1.73 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Bh6g7 Rh8g8 Kg1f2 Kf5g6 Kf2e3 Rg8xg7 Bf8xg7 Kg6xg7 Ke3d3 Kg7g6 Kd3c4 Kg6f5 Kc4b4 Kf5g6 Kb4xa3 Kg6f5 g2g4+ Kf5g5 Ka3xa4
18 00:19 23.726.554 1.191.929 +2.10 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f2 Kf5g6 Kf2e3 Rh8xh6 Bf8xh6 Kg6xh6 Ke3d3 Kh6h5 Kd3c4 Kh5g4 Kc4b5 Kg4f5 Kb5b4 Kf5g5 Kb4xa3 Kg5f5 Ka3xa4 Kf5g4 Ka4b4 Kg4f5 g2g4+
19 00:27 34.665.826 1.257.010 +2.26 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f2 Rh8h7 Kf2e3 Kf5g4 Ke3d3 Rh7f7 Bf8c5 Rf7f1 Bc5d4 Rf1d1+ Kd3e3 Rd1h1 Bh6g7 Rh1h2 Ke3f2 Rh2h7 Bd4c3 Kg4f4 Bg7e5+ Kf4e4 Be5d6
20 00:37 48.440.864 1.304.277 +2.66 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Rh8h7 Bf8g7 Kg4h5 Kg1f2 Kh5g4 Kf2e2 Kg4g3 Ke2d3 Kg3xg2 Kd3c4 Kg2f3 Kc4b4 Kf3e4 Kb4xa3 Ke4d5 Ka3xa4 Kd5c6 Bg7f8 Kc6d5 Bh6f4 Rh7b7 Bf8d6 Rb7b2 a2a3
21 00:45 60.577.048 1.322.296 +2.30 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Rh8h7 Bf8g7 Kg4h5 Kg1f2 Kh5g4 Kf2e2 Kg4g3 Ke2d3 Kg3xg2 Kd3c4 Kg2f3 Kc4b4 Kf3e4 Kb4xa4 Ke4d5 Bg7f8 Rh7f7 Bf8b4 Kd5c4 Bh6d2 Rf7a7+ Bb4a5 Kc4d5 Ka4xa3
22 01:12 100.430.947 1.379.906 +2.78 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Rh8g8 Bf8xa3 Rg8c8 Ba3b4 Rc8c2 a2a3 Kf5g4 Bh6d2 Kg4h4 Kf1f2 Kh4g4 Kf2e2 Kg4g3 Ke2d3 Rc2c8 Bb4d6+ Kg3xg2 Kd3e4 Rc8c4+ Ke4d5 Rc4c2 Bd2f4 Kg2f3 Bd6e5 Kf3g4
23 01:34 130.583.483 1.388.034 +2.78 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Rh8g8 Bf8xa3 Rg8c8 Ba3b4 Rc8c2 a2a3 Kf5g4 Bh6d2 Kg4h4 Kf1f2 Kh4g4 Kf2e2 Kg4g3 Ke2d3 Rc2c8 Bb4d6+ Kg3xg2 Kd3e4 Rc8c4+ Ke4d5 Rc4c2 Bd2f4 Kg2f3 Bd6e5 Kf3g4
24 02:07 178.151.358 1.397.616 +2.78 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Rh8g8 Bf8xa3 Rg8c8 Ba3b4 Rc8c2 a2a3 Kf5g4 Bh6d2 Kg4h4 Kf1f2 Kh4g4 Kf2e2 Kg4g3 Ke2d3 Rc2c8 Bb4c3 Kg3xg2 Kd3e4 Kg2g3 Bc3e5+ Kg3g4 Bd2e3 Rc8c6 Ke4d5 Rc6c8 Be3f4
25 03:04 257.986.485 1.399.491 +2.78 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Rh8g8 Bf8xa3 Rg8c8 Ba3b4 Rc8c2 a2a3 Kf5g4 Bh6d2 Kg4h4 Kf1f2 Kh4g4 Kf2e2 Kg4g3 Ke2d3 Rc2c8 Bb4c3 Kg3xg2 Kd3e4 Kg2g3 Bc3e5+ Kg3g4 Bd2e3 Rc8c6 Ke4d5 Rc6c8 Be3f4 Rc8c2 Bf4h6 Rc2e2 Bh6f4
26 04:27 374.759.605 1.399.338 +2.78 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Rh8g8 Bf8xa3 Rg8c8 Ba3b4 Rc8c2 a2a3 Kf5g4 Bh6d2 Kg4h4 Kf1f2 Kh4g4 Kf2g1 Kg4g3 Bb4d6+ Kg3g4 Bd2b4 Rc2c1+ Kg1h2 Rc1c2 Bd6f8 Rc2c4 Bf8c5 Rc4c2 Bc5d6 Rc2e2 Bb4c3 Re2c2 Bc3d4 Kg4f5 Kh2h3 Kf5e4
27- 06:35 557.633.110 1.409.388 +2.58 e6e7 Rd8h8 g6xf7 Rg4g7 e7e8R Kh4g4+ Re8xh8 Rg7h7+ Be3h6 Rh7xh8 f7f8B f2xg1Q+ Kh2xg1 Kg4f5 Kg1f1 Kf5g4 Kf1g1 Kg4f5

[mhalstern]

+2.58 is pretty decisive.

This looks won as Zappa Mexico II is world class at infinite analysis.

New game
3r4/5p2/4P1P1/8/p5rk/p3B3/P4pPK/6R1 w - - 0 1

Analysis by Zappa Mexico II 64:

1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8B fxg1Q+ 6.Kxg1 Kf5 7.Bhg7
+- (3.04) Depth: 11/41 00:00:00 1234kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8B fxg1Q+ 6.Kxg1 Kf5 7.Bhg7
+- (3.04) Depth: 11/41 00:00:00 1448kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rh7 9.Bd4
+- (3.08) Depth: 12/43 00:00:01 3827kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rh7 9.Bd4
+- (3.08) Depth: 12/43 00:00:01 4110kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke4 10.Kg2 Rh5 11.Bxa3
+- (3.04) Depth: 13/45 00:00:02 6343kN, tb=2
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke4 10.Kg2 Rh5 11.Bxa3
+- (3.04) Depth: 13/45 00:00:02 7095kN, tb=2
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke4 10.Kg2 Kf5 11.Bd4 Rd7
+- (2.97) Depth: 14/47 00:00:03 11669kN, tb=2
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke4 10.Kg2 Kf5 11.Bd4 Rd7
+- (2.97) Depth: 14/47 00:00:04 13440kN, tb=2
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.Bc3 Rc7 10.Bfb4 Ke4 11.Kf2 Rf7+ 12.Ke2 Rd7
+- (2.95) Depth: 15/49 00:00:06 23957kN, tb=5
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.Bc3 Rc7 10.Bfb4 Ke4 11.Kf2 Rf7+ 12.Ke2 Rd7
+- (2.95) Depth: 15/49 00:00:07 27958kN, tb=5
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke6 10.Bd4 Rf7 11.Bb4 Kd5 12.Bdc3 Rf3
+- (2.94) Depth: 16/51 00:00:13 50227kN, tb=8
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5 9.g3 Ke6 10.Bd4 Rf7 11.Bb4 Kd5 12.Bdc3 Rf3
+- (2.94) Depth: 16/51 00:00:15 57595kN, tb=8
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bfg7 Kf5 9.Kf2 Kg4 10.g3 Kh5 11.Kf3 Kg6 12.g4 Kf7 13.Ke4 Kg6
+- (3.47) Depth: 17/53 00:00:27 109mN, tb=34
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bfg7 Kf5 9.Kf2 Kg4 10.g3 Kh5 11.Kf3 Kg6 12.g4 Kf7 13.Ke4 Kg6
+- (3.47) Depth: 17/53 00:00:30 124mN, tb=34
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf1 Kf5 12.Bxa3 Rxg7
+- (3.38) Depth: 18/55 00:00:54 220mN, tb=411
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf1 Kf5 12.Bxa3 Rxg7
+- (3.38) Depth: 18/55 00:01:02 252mN, tb=412
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf1 Ke3 12.Bh6+ Ke4 13.Bxa3 Rc8 14.Bg7 Rc6 15.Bab2
+- (3.38) Depth: 19/57 00:01:43 420mN, tb=728
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf1 Ke3 12.Bh6+ Ke4 13.Bxa3 Rc8 14.Bg7 Rc6 15.Bab2
+- (3.38) Depth: 19/57 00:01:57 478mN, tb=732
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Ke4 12.Ke2
+- (3.38) Depth: 20/59 00:03:24 846mN, tb=1505
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Ke4 12.Ke2
+- (3.38) Depth: 20/59 00:04:02 994mN, tb=1547
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Kg4 12.g3 Kh5 13.Kf3 Kg6 14.g4 Kg5 15.Bh6+ Kg6 16.Ke4 Rh8 17.Kf4 Kf7
+- (3.83) Depth: 21/61 00:07:40 1935mN, tb=3774
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Kg4 12.g3 Kh5 13.Kf3 Kg6 14.g4 Kg5 15.Bh6+ Kg6 16.Ke4 Rh8 17.Kf4 Kf7
+- (3.83) Depth: 21/61 00:08:54 2238mN, tb=3893
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Kg4 12.g3 Kh5 13.Kf3 Kg6 14.g4 Kg5 15.Bh6+ Kg6 16.Ke4 Rh8 17.Kf4 Kf7
+- (3.83) Depth: 22/63 00:16:07 4048mN, tb=7835
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.Ke2 Rg8 10.Bhg7 Kf4 11.Kf2 Kg4 12.g3 Kh5 13.Kf3 Kg6 14.g4 Kg5 15.Bh6+ Kg6 16.Ke4 Rh8 17.Kf4 Kf7
+- (3.83) Depth: 22/63 00:18:47 4679mN, tb=8530

[mhalstern]

Naum 4.1

New game
3r4/5p2/4P1P1/8/p5rk/p3B3/P4pPK/6R1 w - - 0 1

Analysis by Naum 4.1:

1.Bxf2+ Kg5 2.g7 fxe6 3.Rd1 Rc8
=/+ (-0.59) Depth: 6/17 00:00:00 4kN
1.Bxf2+ Kg5 2.g7 fxe6 3.Rd1 Rc8 4.Rc1
=/+ (-0.53) Depth: 7/19 00:00:00 7kN
1.Bxf2+ Kg5 2.g7 fxe6 3.Rd1 Rc8 4.Rc1 Rg8
=/+ (-0.57) Depth: 8/16 00:00:00 12kN
1.Bxf2+ Kg5 2.g7 fxe6 3.Re1 Rg8 4.Rxe6 Rxg7 5.g3
-+ (-1.51) Depth: 9/24 00:00:00 241kN
1.Bxf2+ Kg5 2.Rd1 Rh8+ 3.Kg1 Kxg6 4.e7 Rc4 5.Rd6+ f6
-/+ (-1.16) Depth: 10/24 00:00:00 408kN
1.e7
-/+ (-1.15) Depth: 10/24 00:00:00 458kN
1.e7 fxg1Q+ 2.Kxg1 Rb8 3.gxf7 Rgg8 4.Bh6 Rge8 5.f8Q Kh5
+- (3.95) Depth: 10/38 00:00:00 1273kN
1.e7 fxg1Q+ 2.Kxg1 Re8 3.gxf7 Rgg8 4.Bh6 Kh5 5.f8Q Kg6 6.Qf4
+- (3.97) Depth: 11/31 00:00:00 1590kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.fxg8Q+ Rxg8 5.Rb1 Rh8 6.Rb4+ Kf5
+- (2.89) Depth: 12/31 00:00:00 2037kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1
+/= (0.26) Depth: 13/34 00:00:00 3358kN, tb=5
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5
+/= (0.28) Depth: 14/34 00:00:00 3814kN, tb=7
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Kf2
+/- (0.96) Depth: 15/36 00:00:01 6026kN, tb=46
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bhg7 Kf5
+/- (1.02) Depth: 16/40 00:00:01 7763kN, tb=87
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rh7 8.Bfg7 Kf5 9.Kf2
+/- (1.37) Depth: 17/40 00:00:02 13815kN, tb=588
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke6 9.Ke2 Rh7
+/- (1.37) Depth: 18/42 00:00:03 18224kN, tb=666
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3
+- (1.53) Depth: 19/44 00:00:05 32565kN, tb=1639
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+
+- (1.53) Depth: 20/38 00:00:08 47592kN, tb=1739
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2
+- (1.59) Depth: 21/43 00:00:12 74589kN, tb=2056
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2
+- (1.61) Depth: 22/47 00:00:19 122mN, tb=3284
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2 12.Bab2
+- (1.61) Depth: 23/46 00:00:31 199mN, tb=5264
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2 12.Bab2 Kg4
+- (1.61) Depth: 24/50 00:00:51 325mN, tb=9910
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2 12.Bab2 Kg4 13.a3
+- (1.61) Depth: 25/47 00:01:27 546mN, tb=19816
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2 12.Bab2 Kg4 13.a3 Re2
+- (1.61) Depth: 26/54 00:04:16 1578mN, tb=63303
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rh7 9.Be5 Rd7 10.Bxa3 Rd1+ 11.Kh2 Rd2 12.Bab2 Kg4 13.a3 Re2 14.Kg1
+- (1.61) Depth: 27/59 00:05:41 2099mN, tb=103155

[mhalstern]

Critter 0.52b sees a clear win as well. The search depth and score is impressive, as critter is only single core and does not use tablebases!

Code: Select all

New game
3r4/5p2/4P1P1/8/p5rk/p3B3/P4pPK/6R1 w - - 0 1

Analysis by Critter 0.52b 64-bit:

1.Bxf2+ Kg5 2.Rd1 Rh8+ 3.Kg1 fxg6 4.Bd4 Rc8 
  -+  (-1.58)   Depth: 6/14   00:00:00  41kN
1.Rd1 f1N+ 2.Rxf1 fxe6 3.Rf4 e5 4.Bf2+ Kh5 5.Rxg4 Kxg4 
  -+  (-1.51)   Depth: 6/14   00:00:00  46kN
1.e7 Rh8 2.gxf7 Rgg8 3.fxg8Q fxg1Q+ 4.Bxg1 Rxg8 5.Bc5 Re8 6.Bxa3 
  =  (0.23)   Depth: 6/15   00:00:00  129kN
1.e7 fxg1Q+ 2.Kxg1 Rb8 3.gxf7 Rgg8 4.Bc5 Kg4 5.f8Q Rbxf8 6.exf8Q Rxf8 7.Bxf8 
  +-  (4.27)   Depth: 7/16   00:00:00  216kN
1.e7 fxg1Q+ 2.Kxg1 Rh8 3.gxf7 Rgg8 4.Bc5 Kg5 5.Kf2 Kf4 6.f8Q+ Rxf8 7.exf8Q+ Rxf8 
  +-  (4.59)   Depth: 8/17   00:00:00  355kN
1.e7 fxg1Q+ 2.Kxg1 Rh8 3.gxf7 Rgg8 4.Bc5 Kg4 5.Bxa3 Kf4 6.f8Q+ Rxf8 7.exf8Q+ Rxf8 8.Bxf8 Ke4 
  +-  (4.70)   Depth: 9/18   00:00:00  550kN
1.e7 fxg1Q+ 2.Kxg1 Re8 3.gxf7 Rgg8 4.Bh6 Rh8 5.f8Q Rhxf8 6.exf8Q Rxf8 7.Bxf8 Kg3 8.Kf1 Kf4 
  +-  (5.08)   Depth: 10/18   00:00:00  1007kN
1.e7 
  +-  (4.69)   Depth: 11/21   00:00:00  1329kN
1.e7 
  +-  (4.30)   Depth: 11/21   00:00:00  1377kN
1.e7 
  +-  (3.52)   Depth: 11/21   00:00:00  1432kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.fxg8Q+ Rxg8 5.Rd1 Rh8 6.Rd4+ Kh5 7.Rf4 Re8 8.Bf8 
  +-  (3.33)   Depth: 11/21   00:00:00  1548kN
1.e7 
  +-  (3.72)   Depth: 12/21   00:00:00  1784kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.fxg8Q+ Rxg8 5.Rd1 Rh8 6.Rd4+ Kh5 7.Rf4 Kg6 8.Kg3 f1R 9.Rxf1 
  +-  (3.75)   Depth: 12/21   00:00:00  1894kN
1.e7 
  +-  (3.35)   Depth: 13/23   00:00:00  2692kN
1.e7 
  +-  (2.96)   Depth: 13/23   00:00:01  2952kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rh7 9.Bc3 Rc7 10.Bfb4 Ke4 11.Kf2 
  +-  (2.67)   Depth: 13/23   00:00:01  3401kN
1.e7 
  +-  (2.28)   Depth: 14/23   00:00:01  4373kN
1.e7 
  +-  (1.89)   Depth: 14/23   00:00:01  4745kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Ke3 Rxh6 
  +/-  (1.18)   Depth: 14/25   00:00:02  5707kN
1.e7 
  +-  (1.57)   Depth: 15/25   00:00:02  7321kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Kg5 11.Ke3 Kf5 12.Kd4 
  +-  (1.53)   Depth: 15/26   00:00:02  7965kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Kg5 11.Ke3 Kf5 12.Kd4 Ke6 
  +-  (1.64)   Depth: 16/26   00:00:04  12049kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Kg5 11.Ke3 Kg6 12.Bh6 Rh8 13.Bhg7 
  +-  (1.50)   Depth: 17/27   00:00:07  19205kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Kh5 11.Bh6 Kg6 12.Ke3 Rh8 13.Bhg7 Rh2 
  +/-  (1.12)   Depth: 18/30   00:00:12  33660kN
1.e7 
  +-  (1.51)   Depth: 19/32   00:00:19  53256kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Kf2 Kg6 9.Kg3 Rxh6 10.Bxh6 Kxh6 11.Kh4 Kg6 12.g4 Kf6 13.g5+ Kg7 14.Kh5 Kf7 15.Kh6 Ke6 
  +/-  (1.37)   Depth: 19/32   00:00:22  60128kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1N 7.Kxg1 Kf5 8.Kf2 Kg6 9.Ke3 Rxh6 10.Bxh6 Kxh6 11.Kd2 Kg5 12.Kc3 Kf6 13.Kb4 Ke5 14.Kxa3 Kd5 15.g3 Kd6 
  +-  (1.71)   Depth: 20/33   00:00:36  98279kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Kg6 9.Ke3 Rxh6 10.Bxh6 Kxh6 11.Kd2 Kg5 12.Kc3 Kf6 13.Kb4 Ke5 14.Kxa3 Kd5 15.Kxa4 Kd6 16.Kb5 
  +-  (1.92)   Depth: 21/34   00:01:01  165mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Rh7 9.Bc1 Rc7 10.Bfxa3 Rc2+ 11.Kg3 Rxa2 12.Kf3 Rc2 13.g4+ Kg6 14.g5 Rc3+ 15.Kf4 Rd3 16.Bcb2 Rh3 17.Bc1 
  +-  (2.16)   Depth: 22/36   00:01:48  294mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke6 9.Ke3 Kf7 10.g4 Rxf8 11.Bxf8 Kxf8 12.Kf4 Kf7 13.g5 Kg7 14.Kf5 Kh7 15.g6+ Kg7 16.Kg5 Kg8 17.Kh5 Kf8 18.Kg5 
  +-  (2.24)   Depth: 23/38   00:03:23  550mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke6 9.Ke3 Kf7 10.g4 Rg8 11.g5 Rxf8 12.Bxf8 Kxf8 13.Kf4 Kg7 14.Kf5 Kf7 15.g6+ Kg8 16.Kg4 Kf8 17.Kh5 Kg8 18.Kh6 Kf8 
  +-  (2.22)   Depth: 24/38   00:06:27  1057mN

[mhalstern]

Crafty 23.1

Code: Select all

New game
3r4/5p2/4P1P1/8/p5rk/p3B3/P4pPK/6R1 w - - 0 1

Analysis by Crafty 23.1 64 bit:

1.e7 Rh8 2.gxf7 fxg1Q+ 3.Kxg1 Rgg8 4.fxg8Q Rxg8 5.Kf2 Re8 
  +/-  (1.19)   Depth: 9   00:00:00  241kN
1.e7 
  +-  (1.59)   Depth: 10   00:00:00  391kN
1.e7 
  +-  (2.59)   Depth: 10   00:00:00  546kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 fxg1Q+ 4.Kxg1 Kg3 5.f8Q Rxf8 6.exf8Q 
  +-  (4.53)   Depth: 10   00:00:00  783kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 fxg1Q+ 4.Kxg1 Kg3 5.f8Q Rxf8 6.exf8Q 
  +-  (4.53)   Depth: 10   00:00:00  806kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8Q Rxf8 6.Bxf8 fxg1Q+ 7.Kxg1 
  +-  (4.53)   Depth: 11   00:00:00  967kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8Q Rxf8 6.Bxf8 fxg1Q+ 7.Kxg1 
  +-  (4.53)   Depth: 11   00:00:00  1057kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8Q Rxf8 6.Bxf8 fxg1Q+ 7.Kxg1 
  +-  (4.53)   Depth: 12   00:00:00  1432kN
1.e7 Rh8 2.gxf7 Rgg8 3.Bh6 Kg4 4.f8Q Rxf8 5.exf8Q Rxf8 6.Bxf8 fxg1Q+ 7.Kxg1 
  +-  (4.53)   Depth: 12   00:00:00  1624kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 
  +-  (2.59)   Depth: 13   00:00:00  2564kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 
  +-  (2.59)   Depth: 13   00:00:00  3982kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.g4 
  +-  (2.67)   Depth: 14   00:00:00  4860kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.g4 
  +-  (2.67)   Depth: 14   00:00:00  6458kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.g4 Rh7 
  +-  (2.68)   Depth: 15   00:00:00  8525kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Ke4 9.g4 Rh7 
  +-  (2.68)   Depth: 15   00:00:00  11198kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Rh7 9.Be3 Rc7 10.Kf3 
  +-  (2.77)   Depth: 16   00:00:01  14828kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Kf2 Rh7 9.Be3 Rc7 10.Kf3 
  +-  (2.77)   Depth: 16   00:00:01  18607kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.g3 Ke4 9.Bhg7 Rh3 10.Kg2 Rh7 
  +-  (2.61)   Depth: 17   00:00:01  24461kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.g3 Ke4 9.Bhg7 Rh3 10.Kg2 Rh7 
  +-  (2.61)   Depth: 17   00:00:02  33760kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.g3 Ke4 9.Bhg7 Rh3 10.Kg2 Rh7 11.g4 
  +-  (2.68)   Depth: 18   00:00:03  44382kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.g3 Ke4 9.Bhg7 Rh3 10.Kg2 Rh7 11.g4 
  +-  (2.68)   Depth: 18   00:00:04  60635kN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 
  +/-  (1.05)   Depth: 19   00:00:08  109mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 
  +/-  (1.05)   Depth: 19   00:00:13  165mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rg8 9.Kf2 Kg6 10.g4 Rxg7 11.Bxg7 Kxg7 12.g5 
  +/-  (1.10)   Depth: 20   00:00:19  208mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kf5 8.Bhg7 Rg8 9.Kf2 Kg6 10.g4 Rxg7 11.Bxg7 Kxg7 12.g5 
  +/-  (1.10)   Depth: 20   00:00:25  272mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kg2 Rxg7 11.Bxg7 Kf4 
  +/-  (0.99)   Depth: 21   00:00:37  357mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kg2 Rxg7 11.Bxg7 Kf4 12.Bh8 Ke4 13.Bg7 Kd3 
  +/-  (0.99)   Depth: 21   00:01:00  553mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Rxg7 11.Bxg7 Kf4 12.Bh6+ Ke4 13.Bf8 Kd3 14.Bxa3 
  +/-  (0.99)   Depth: 22   00:01:33  768mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.g4+ Kxg4 10.Kf2 Rxg7 11.Bxg7 Kf4 12.Bh6+ Ke4 13.Bf8 Kd3 14.Bxa3 
  +/-  (0.99)   Depth: 22   00:02:06  1081mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 13.Kf4 Kg6 14.g4 Kf6 15.Ke4 
  +/-  (1.20)   Depth: 23   00:03:22  1729mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 13.Kf4 Kg6 14.g4 Kf6 15.Ke4 
  +/-  (1.20)   Depth: 23   00:04:21  1729mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 13.Kf4 Kg6 14.g4 
  +/-  (1.04)   Depth: 24   00:06:20  1729mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Bhg7 Rg8 9.Kf2 Kg6 10.Bh6 Rh8 11.Kf3 Rxh6 12.Bxh6 Kxh6 13.Kf4 Kg6 14.g4 
  +/-  (1.04)   Depth: 24   00:09:37  1729mN
1.e7 
  +-  (1.44)   Depth: 25   00:14:47  1729mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Kf2 Rxh6 9.Bxh6 Kxh6 10.g4 Kg5 11.Kg3 Kg6 12.Kf4 Kf6 13.g5+ Kf7 14.Kf5 Kg7 15.g6 
  +-  (1.57)   Depth: 25   00:17:58  1729mN
1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Kh5 8.Kf2 Rxh6 9.Bxh6 Kxh6 10.g4 Kg5 11.Kg3 Kg6 12.Kf4 Kf6 13.g5+ Kf7 14.Kf5 Kg7 15.g6 
  +-  (1.57)   Depth: 25   00:23:37  1729mN

[JManion]

Igorrit 0.086v9_x64 on my quad showed this


1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rg8
+- (1.42) Depth: 26 00:00:03


1.e7 Rh8 2.gxf7 Rg7 3.e8R Kg4+ 4.Rxh8 Rh7+ 5.Bh6 Rxh8 6.f8B fxg1Q+ 7.Kxg1 Rg8 8. Bhg7 Kf5 9. Kf1 Kf4 10. g3 Kg4 11. Kg2 Kg5 12. Kf3 Kf5 13. g4 Kg5 14. Kg3 Kg6 15. Kf4 Kh7 16. Kf5 Rxg7 17. Bxg7 Kxg7 18. Kg5 Kh7
+- (+3.76) Depth:31 00:009:03

If I play it out it appears this wins easily for White.