Sting SF 9 Release

[fishpov]

Now Sting SF9 is able to find this :
White to play
I think this is the best way for White to win !
Many improvments with SF9 for displaying main line
[d]q1N5/b1p5/1pP2k2/pP3Bp1/P1P5/6P1/1K3P2/8 w - - 0 1
Analysis by Sting SF 9 64bit:
...
After 8 hours !! (Core I7 3770K 4,2 GHz)

8.Bf5-d7 Kf6-e5 9.Kb2-c2 Ke5-e4 10.Bd7-g4
= (0.00) Depth: 52 08:23:21 306618MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-d7 Ba7-b8 19.Bd7-f5 Bb8-a7 20.Bf5-g4 Ba7-b8 21.Bg4-d7 Bb8-a7 22.Ke4-e3
= (0.08 ++) Depth: 53 08:57:50 324155MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-f5 Ba7-b8 19.Bf5-d7 Bb8-a7 20.Ke4-f3 Kf6-g7 21.Kf3-g4 Kg7-g6 22.f4-f5+ Kg6-f6 23.Kg4-h5 Qa8-b8 24.Kh5-h6 Qb8-a8 25.Bd7-e6 Qa8-b8 26.g3-g4 Qb8-a8 27.Kh6-h7 Ba7-b8 28.Kh7-h8 Bb8-a7 29.Kh8-g8 Ba7-b8 30.Kg8-f8 Bb8-a7 31.Kf8-e8 Ba7-b8 32.Ke8-d7 Bb8-a7 33.Kd7xc7 Ba7-b8+ 34.Kc7-d7 Bb8-e5 35.c6-c7 Qa8-e4 36.Nc8-d6 Qe4-d3 37.c4-c5
= (0.16 ++) Depth: 53 08:58:03 324255MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-f5 Ba7-b8 19.Bf5-d7 Bb8-a7 20.Ke4-f3 Kf6-g7 21.Kf3-g4 Kg7-g6 22.f4-f5+ Kg6-f6 23.Kg4-h5 Qa8-b8 24.Kh5-h6 Qb8-a8 25.Bd7-e6 Qa8-b8 26.g3-g4 Qb8-a8 27.Kh6-h7 Ba7-b8 28.Kh7-h8 Bb8-a7 29.Kh8-g8 Ba7-b8 30.Kg8-f8 Bb8-a7 31.Kf8-e8 Ba7-b8 32.Ke8-d7 Bb8-a7 33.Kd7xc7 Ba7-b8+ 34.Kc7-d7 Bb8-e5 35.c6-c7 Qa8-e4 36.Nc8-d6 Qe4-d3 37.Be6-d5 Be5xd6 38.c7-c8Q Bd6-c5 39.Kd7-c6 Kf6-e7
= (0.28 ++) Depth: 53 08:58:07 324287MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-f5 Ba7-b8 19.Bf5-d7 Bb8-a7 20.Ke4-f3 Kf6-g7 21.Kf3-g4 Kg7-g6 22.f4-f5+ Kg6-f6 23.Kg4-h5 Qa8-b8 24.Kh5-h6 Qb8-a8 25.Bd7-e6 Qa8-b8 26.g3-g4 Qb8-a8 27.Kh6-h7 Ba7-b8 28.Kh7-h8 Bb8-a7 29.Kh8-g8 Ba7-b8 30.Kg8-f8 Bb8-a7 31.Kf8-e8 Ba7-b8 32.Ke8-d7 Bb8-a7 33.Kd7xc7 Ba7-b8+ 34.Kc7-d7 Bb8-e5 35.c6-c7 Qa8-e4 36.Nc8-d6 Qe4-d3 37.Be6-d5 Be5xd6 38.c7-c8Q Bd6-c5 39.Kd7-c6 Kf6-e7
+/= (0.46 ++) Depth: 53 08:58:09 324307MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-f5 Ba7-b8 19.Bf5-d7 Bb8-a7 20.Ke4-f3 Kf6-g7 21.Kf3-g4 Kg7-g6 22.f4-f5+ Kg6-f6 23.Kg4-h5 Qa8-b8 24.Kh5-h6 Qb8-a8 25.Bd7-e6 Qa8-b8 26.g3-g4 Qb8-a8 27.Kh6-h7 Ba7-b8 28.Kh7-h8 Bb8-a7 29.Kh8-g8 Ba7-b8 30.Kg8-f8 Bb8-a7 31.Kf8-e8 Ba7-b8 32.Ke8-d7 Bb8-a7 33.Kd7xc7 Ba7-b8+ 34.Kc7-d7 Bb8-e5 35.c6-c7 Qa8-e4 36.Nc8-d6 Qe4-d3 37.Be6-d5 Be5xd6 38.c7-c8Q Bd6-c5 39.Kd7-c6 Kf6-e7
+/- (0.73 ++) Depth: 53 08:58:27 324474MN
8.Bf5-d7 Kf6-e5 9.f2-f3 Ke5-f6 10.Kb2-c3 Qa8-b8 11.Kc3-d3 Kf6-e5 12.Kd3-e3 Qb8-a8 13.f3-f4+ Ke5-f6 14.Ke3-d4 Ba7-b8 15.Kd4-d5 Bb8-a7 16.Bd7-h3 Qa8-b8 17.Kd5-e4 Qb8-a8 18.Bh3-f5 Ba7-b8 19.Bf5-d7 Bb8-a7 20.Ke4-f3 Kf6-g7 21.Kf3-g4 Kg7-g6 22.f4-f5+ Kg6-f6 23.Kg4-h5 Qa8-b8 24.Kh5-h6 Qb8-a8 25.Bd7-e6 Qa8-b8 26.g3-g4 Qb8-a8 27.Kh6-h7 Ba7-b8 28.Kh7-h8 Bb8-a7 29.Kh8-g8 Ba7-b8 30.Kg8-f8 Bb8-a7 31.Kf8-e8 Ba7-b8 32.Ke8-d7 Bb8-a7 33.Kd7xc7 Ba7-b8+ 34.Kc7-d7 Bb8-e5 35.c6-c7 Qa8-e4 36.Nc8-d6 Qe4-d3 37.Be6-d5 Be5xd6 38.c7-c8Q Bd6-c5 39.Kd7-c6 Kf6-e7 40.Kc6-b7 Ke7-f6 41.Kb7-a6 Kf6-e7
+/- (1.14 ++) Depth: 53 08:59:20 324944MN

[lech]

The tested above by Nicolas position:
[d]q1N5/b1p5/1pP2k2/pP3Bp1/P1P5/6P1/1K3P2/8 w - - best move Bd7 or Bg4
is a part of:
[d]7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - best move hxg6
I think if a machine is (will be) able to get the speed 100 000 000 nodes/sec for Sting sf 9, there is a possibility to try to solve each very difficult position like this one in a reasonable time.

[peter]

Hi!

is a part of:
[d]7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - best move hxg6

A study from Mihai Neghina

[lech]

Hi!

is a part of:
[d]7q/b1p5/1p1Npkb1/pPP2ppP/P1P5/3B2P1/5P1R/K3R3 w - - best move hxg6

A study from Mihai Neghina

Thanks Peter, I think it is one of the most difficult positions for engines.