Positions solved only by Rybka?

[Enir]

Rybka 3 solves these six positions quite easily. No other engine I tried solves them under 5 minutes. Until weeks ago I had them in my file "Hard.cbh".

Enrique

_______________

[Event "?"]
[Site "?"]
[Date "1922.??.??"]
[Round "?"]
[White "Kvekkenstedt"]
[Black "Study"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - - 0 3"]
[PlyCount "15"]
[EventDate "1922.??.??"]
[SourceDate "2001.01.01"]

3. Bg2 Bxg2 4. e4 f5 5. gxf5 exf5 6. a7 fxe4 7. d4 {!!} e3 8. dxe5 Kb5 9. e6
Kb6 10. e7 $18 {Kvekkenstedt, 1921-1922} 1-0

[Event "Biel"]
[Site "?"]
[Date "1977.??.??"]
[Round "?"]
[White "Andersson"]
[Black "Torre"]
[Result "0-1"]
[SetUp "1"]
[FEN "1r6/1pb1k1p1/4p2p/1p1p4/3Pp2P/1R2P1PB/1P2P1K1/8 b - - 0 1"]
[PlyCount "7"]
[EventDate "1997.??.??"]
[SourceDate "2001.01.01"]

1... b4 $3 2. Rxb4 b5 $1 3. h5 (3. Rb3 b4 {
/\...Bd6, Re8 (>< e6), Kd8-c7-...-c4 -+; >< g3}) 3... Bd6 4. Rb3 b4 $1 $19 {
>< Rb3, g3; /\ 5...Re8 (>< e6), 6... Kd8-c7-...-c4 -+ Andersson-Torre/Biel1977}
0-1

[Event "Sotschi"]
[Site "?"]
[Date "1989.??.??"]
[Round "?"]
[White "Wyschmanawin"]
[Black "Ruban"]
[Result "1-0"]
[SetUp "1"]
[FEN "r1b2q2/pp1nb2k/4pr1p/4Np2/2pP1Q1P/2N5/PPB2P2/2K3RR w - - 0 1"]
[PlyCount "19"]
[EventDate "1989.??.??"]
[SourceDate "2001.01.01"]

1. Ne4 fxe4 2. Qxe4+ Rf5 3. Ng6 Qf7 4. Nxe7 Qxe7 5. Re1 Qd6 6. Qxe6 Qf4+ 7. Re3
Nf8 8. Bxf5+ Qxf5 9. Qe7+ Kh8 10. Rg1 1-0

[Event "1.m ts70#2032"]
[Site "?"]
[Date "1986.??.??"]
[Round "?"]
[White "Cortlever, N."]
[Black "[+0650.63a6a8]"]
[Result "1-0"]
[SetUp "1"]
[FEN "k4r2/P4P2/Kp1r2P1/1P6/2B4p/1PbpB3/5P2/8 w - - 0 2"]
[PlyCount "27"]
[EventDate "1986.??.??"]
[Source "GoldBase posi"]
[SourceDate "2000.03.10"]

2. Bd4 Bxd4 3. Bxd3 Re6 4. Bc4 Rd6 5. Be2 Rf6 6. g7 R6xf7 7. gxf8=Q+ Rxf8 8.
Bc4 Rf5 9. Be6 Rxb5 10. b4 Rg5 11. Bd7 Rg6 12. b5 Rf6 13. f4 Bc5 14. Bh3 Rg6
15. Bf5 1-0

[Event "ba01"]
[Site "?"]
[Date "1911.??.??"]
[Round "?"]
[White "Troitzky, A."]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/b6k/8/3K4/3n1pN1/2R4N/p7/8 w - - 0 1"]
[PlyCount "19"]
[EventDate "1911.??.??"]
[SourceDate "2001.01.01"]

1. Ra3 Nb5 2. Rxa2 Nc3+ 3. Ke6 Nxa2 4. Kf7 Bd4 5. Ng5+ Kh8 6. Nh6 Bg7 7. Ng8
Bf8 8. Kxf8 Nc3 9. Ne7 Ne4 10. Ng6# 1-0

[Event "?"]
[Site "?"]
[Date "2003.??.??"]
[Round "?"]
[White "Kramnik"]
[Black "Bareev"]
[Result "1-0"]
[SetUp "1"]
[FEN "3R4/1kr2pp1/2p1p3/1pP1PnBP/pP3K2/8/P4P2/8 w - - 0 1"]
[PlyCount "1"]
[EventDate "2002.12.07"]
[SourceDate "2001.01.01"]

1. Bf6 1-0

[Uri Blass]

Rybka 3 solves these six positions quite easily. No other engine I tried solves them under 5 minutes. Until weeks ago I had them in my file "Hard.cbh".

Enrique

_______________

[Event "?"]
[Site "?"]
[Date "1922.??.??"]
[Round "?"]
[White "Kvekkenstedt"]
[Black "Study"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - - 0 3"]
[PlyCount "15"]
[EventDate "1922.??.??"]
[SourceDate "2001.01.01"]

3. Bg2 Bxg2 4. e4 f5 5. gxf5 exf5 6. a7 fxe4 7. d4 {!!} e3 8. dxe5 Kb5 9. e6
Kb6 10. e7 $18 {Kvekkenstedt, 1921-1922} 1-0

I think that you did not try all engines.

I remembered that movei solved the first position in a few minutes so I tried it and here with 512 mbytes hash are the results(more than 5 minutes but with faster hardware than the hardware that I use(A3000 2.01 ghz) it can be less than 5 minutes.

Movei is relatively weak engine so I am sure that there are more engines that solve it faster except rybka

New game
[d]8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - - 0 1

Analysis by Movei00_8_438:

1.Bf1-e2
± (1.32) Depth: 1 00:00:00
1.Bf1-e2 Bc6-d5
± (1.27) Depth: 2 00:00:00
1.Bf1-e2 Bc6-d5
± (1.27) Depth: 2 00:00:00
1.Bf1-e2 e5-e4 2.d3-d4 c5xd4 3.e3xd4
± (1.20) Depth: 3 00:00:00
1.Bf1-e2 e5-e4 2.d3-d4 c5xd4 3.e3xd4
± (1.20) Depth: 3 00:00:00
1.Bf1-e2 e5-e4 2.a6-a7 Bc6-d5
± (1.29) Depth: 4 00:00:00
1.Bf1-e2 e5-e4 2.a6-a7 Bc6-d5
± (1.29) Depth: 4 00:00:00
1.Bf1-e2
± (0.99) Depth: 5 00:00:00
1.Bf1-e2
² (0.29) Depth: 5 00:00:00
1.Bf1-e2 Kb4-a5 2.d3-d4 c5xd4 3.Kc2-d2
= (0.17) Depth: 5 00:00:00
1.g4-g5
= (0.18) Depth: 5 00:00:00
1.g4-g5
² (0.47) Depth: 5 00:00:00
1.g4-g5 f6xg5 2.Bf1-h3 Kb4-a5 3.a6-a7
± (0.87) Depth: 5 00:00:00
1.a6-a7
± (0.88) Depth: 5 00:00:00
1.a6-a7 Kb4-a5 2.e3-e4 Ka5-b6
± (0.95) Depth: 5 00:00:00
1.a6-a7 Kb4-a5 2.e3-e4 Ka5-b6
± (0.95) Depth: 5 00:00:00
1.a6-a7 Kb4-a5 2.g4-g5 f6xg5
± (0.87) Depth: 6 00:00:00 9kN
1.a6-a7 Kb4-a5 2.g4-g5 f6xg5
± (0.87) Depth: 6 00:00:00 12kN
1.a6-a7
± (1.17) Depth: 7 00:00:00 20kN
1.a6-a7 e5-e4 2.d3xe4 Bc6xe4+ 3.Bf1-d3 Be4-c6 4.Kc2-d2 Bc6-f3
± (1.24) Depth: 7 00:00:00 26kN
1.a6-a7 e5-e4 2.d3xe4 Bc6xe4+ 3.Bf1-d3 Be4-c6 4.Kc2-d2 Bc6-f3
± (1.24) Depth: 7 00:00:01 30kN
1.a6-a7
± (0.94) Depth: 8 00:00:01 40kN
1.a6-a7 f6-f5 2.Bf1-e2 f5-f4 3.e3-e4 Kb4-a5 4.g4-g5 Ka5-b6
± (0.94) Depth: 8 00:00:01 47kN
1.a6-a7 f6-f5 2.Bf1-e2 f5-f4 3.e3-e4 Kb4-a5 4.g4-g5 Ka5-b6
± (0.94) Depth: 8 00:00:01 76kN
1.a6-a7 f6-f5 2.Bf1-e2 Kb4-a5 3.g4xf5 e6xf5 4.e3-e4 f5xe4
± (0.81) Depth: 9 00:00:01 91kN
1.a6-a7 f6-f5 2.Bf1-e2 Kb4-a5 3.g4xf5 e6xf5 4.e3-e4 f5xe4
± (0.81) Depth: 9 00:00:01 135kN
1.a6-a7
± (1.11) Depth: 10 00:00:01 182kN
1.a6-a7 f6-f5 2.Kc2-c1 g7-g5 3.Bf1-g2 e5-e4 4.g4xf5 e6xf5 5.d3xe4 f5xe4
± (1.11) Depth: 10 00:00:01 263kN
1.a6-a7 f6-f5 2.Kc2-c1 g7-g5 3.Bf1-g2 e5-e4 4.g4xf5 e6xf5 5.d3xe4 f5xe4
± (1.11) Depth: 10 00:00:01 294kN
1.a6-a7
± (0.81) Depth: 11 00:00:02 482kN
1.a6-a7 e5-e4 2.d3xe4 Kb4-a5 3.Bf1-c4 Ka5-b6 4.Kc2-d3 Kb6xa7 5.Bc4xe6 Bc6-b5+ 6.Kd3-c3
² (0.52) Depth: 11 00:00:02 622kN
1.a6-a7 e5-e4 2.d3xe4 Kb4-a5 3.Bf1-c4 Ka5-b6 4.Kc2-d3 Kb6xa7 5.Bc4xe6 Bc6-b5+ 6.Kd3-c3
² (0.52) Depth: 11 00:00:02 874kN
1.a6-a7 e5-e4 2.g4-g5 Kb4-a5 3.g5xf6 g7xf6 4.d3-d4 c5xd4 5.e3xd4 Ka5-b6 6.Bf1-c4 Kb6xa7 7.Bc4xe6
² (0.35) Depth: 12 00:00:02 1042kN
1.a6-a7 e5-e4 2.g4-g5 Kb4-a5 3.g5xf6 g7xf6 4.d3-d4 c5xd4 5.e3xd4 Ka5-b6 6.Bf1-c4 Kb6xa7 7.Bc4xe6
² (0.35) Depth: 12 00:00:03 1364kN
1.a6-a7 e5-e4 2.g4-g5 Kb4-a5 3.g5xf6 g7xf6 4.d3-d4 c5xd4 5.e3xd4 Ka5-b6 6.Bf1-c4 Kb6xa7 7.Bc4xe6
² (0.35) Depth: 13 00:00:03 1608kN
1.a6-a7 e5-e4 2.g4-g5 Kb4-a5 3.g5xf6 g7xf6 4.d3-d4 c5xd4 5.e3xd4 Ka5-b6 6.Bf1-c4 Kb6xa7 7.Bc4xe6
² (0.35) Depth: 13 00:00:04 2069kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.Bf1-h3 g7-g6 5.Kc2-d2 f5-f4 6.g4-g5 e4-e3+ 7.Kd2-d3 Bc6-b5+ 8.Kd3-c2 Bb5-a4+ 9.Kc2-c1 Ba4-c6 10.Bh3xe6
² (0.41) Depth: 14 00:00:05 2966kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.Bf1-h3 g7-g6 5.Kc2-d2 f5-f4 6.g4-g5 e4-e3+ 7.Kd2-d3 Bc6-b5+ 8.Kd3-c2 Bb5-a4+ 9.Kc2-c1 Ba4-c6 10.Bh3xe6
² (0.41) Depth: 14 00:00:06 3730kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.Bf1-h3 f5-f4 5.g4-g5 e4-e3 6.Bh3xe6 f4-f3 7.Kc2-d3 e3-e2 8.Kd3-d2 Bc6-e4
= (0.21) Depth: 15 00:00:08 4387kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.Bf1-h3 f5-f4 5.g4-g5 e4-e3 6.Bh3xe6 f4-f3 7.Kc2-d3 e3-e2 8.Kd3-d2 Bc6-e4
= (0.21) Depth: 15 00:00:11 6384kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-d2 e4-e3+ 9.Kd2-d3
² (0.33) Depth: 16 00:00:15 8605kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-d2 e4-e3+ 9.Kd2-d3
² (0.33) Depth: 16 00:00:18 10705kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.Kc2-d2 g7-g6 8.d4-d5 Kb4-c5 9.Kd2-e2 e4-e3
= (0.18) Depth: 17 00:00:24 13883kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.Kc2-d2 g7-g6 8.d4-d5 Kb4-c5 9.Kd2-e2 e4-e3
= (0.18) Depth: 17 00:00:32 19496kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-c3 e4-e3 9.b3-b4+ Kc5-d6 10.Kc3-d3 g7-g5
= (0.04) Depth: 18 00:00:39 23683kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-c3 e4-e3 9.b3-b4+ Kc5-d6 10.Kc3-d3 g7-g5
= (0.04) Depth: 18 00:00:55 33712kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-c3 e4-e3 9.b3-b4+ Kc5-d6 10.Kc3-d4 Ba8-b7 11.Kd4-e4 g7-g5
= (-0.07) Depth: 19 00:01:08 41355kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.d4-d5 Kb4-c5 8.Kc2-c3 e4-e3 9.b3-b4+ Kc5-d6 10.Kc3-d4 Ba8-b7 11.Kd4-e4 g7-g5
= (-0.07) Depth: 19 00:01:41 61438kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.Bc4-e6 e4-e3 8.Kc2-d3 g7-g5 9.Kd3-e2
= (0.06) Depth: 20 00:03:22 116637kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.Bc4-e6 e4-e3 8.Kc2-d3 g7-g5 9.Kd3-e2
= (0.06) Depth: 20 00:03:48 132308kN
1.a6-a7 e5-e4 2.d3-d4 c5xd4 3.e3xd4 f6-f5 4.g4xf5 e6xf5 5.b2-b3 f5-f4 6.Bf1-c4 Bc6-a8 7.Bc4-e6 e4-e3 8.Kc2-d3 Ba8-b7 9.d4-d5 Bb7-a6+ 10.Kd3-c2 Ba6-b7
= (0.06) Depth: 21 00:05:15 180288kN
1.Bf1-g2
= (0.07) Depth: 21 00:06:27 225583kN
1.Bf1-g2
² (0.36) Depth: 21 00:06:40 234180kN
1.Bf1-g2 Bc6xg2 2.e3-e4 f6-f5 3.g4xf5 e6xf5 4.a6-a7 f5xe4 5.d3-d4 e4-e3 6.d4xe5 Bg2-e4+ 7.Kc2-d1 Kb4-b3 8.e5-e6 Be4-c6 9.e6-e7 c5-c4 10.e7-e8Q Bc6xe8 11.a7-a8Q Be8-h5+ 12.Kd1-c1
+- (3.45) Depth: 21 00:11:57 427096kN
1.Bf1-g2 Bc6xg2 2.e3-e4 f6-f5 3.g4xf5 e6xf5 4.a6-a7 f5xe4 5.d3-d4 e4-e3 6.d4xe5 Bg2-e4+ 7.Kc2-d1 Kb4-b3 8.e5-e6 Be4-c6 9.e6-e7 c5-c4 10.e7-e8Q Bc6xe8 11.a7-a8Q Be8-h5+ 12.Kd1-c1
+- (3.45) Depth: 21 00:11:57 427096kN

(so k, 06.09.2008)

[Enir]

I think that you did not try all engines.

I didn't try these positions in 3 or 4 years.

I remembered that movei solved the first position in a few minutes so I tried it and here with 512 mbytes hash are the results(more than 5 minutes but with faster hardware than the hardware that I use(A3000 2.01 ghz) it can be less than 5 minutes.

Good for Movei. I think that in 2005 or so no engines solved any of these positions, at least on my dual Xeon 3.4.

Enrique

[Uri Blass]

I can add that
I wonder if there are engines that see that white is better at depth 1 here
based on evaluation.

Rybka and movei do not have good code to detect unstoppable passed pawns so they cannot see it based on evaluation.

[d]8/P5p1/8/2p1P3/1k6/4p3/1PK3b1/8 b - - 0 6

[genorb]

I analyzed this position with several engines. Here are the results

Hardware: AMD Athlon 64 Processor 3200+ 2200 MHz
32bit
single processor

Hash: 256Mb

Hiarcs 12.0, Rybka 3, Zappa Mexico II, The King 3.33 find the solution within a reasonable time (taking into account my slow hardware!)

Shredder 11.0, Deep Sjeng 3.0 and Naum 3.1 do not find it within at least 15 minutes.

Hiarcs 12.0 : finds it instantly

13/30 0:00 +1.64++ 1.Bg2 (318.281) 564 RB:5
13/30 0:00 +1.58 1.Bg2 Bxg2 2.e4 f5 3.gxf5 (328.406) 564 RB:5
14/34 0:00 +1.18-- 1.Bg2 Bxg2 (493.299) 559 RB:5
14/40 0:01 +0.82 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kc1 c4 8.e6 c3 9.bxc3+ (778.026) 575 RB:5
15/40 0:01 +0.82 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 (1.021.969) 567 RB:5
16/40 0:02 +0.93 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 (1.414.384) 587 RB:5
17/40 0:03 +1.18++ 1.Bg2 (1.879.934) 586 RB:6
17/45 0:06 +1.18 1.Bg2 Bxg2 2.e4 f5 3.gxf5 (4.002.777) 633 RB:6
18/45 0:07 +1.43++ 1.Bg2 (4.864.484) 630 RB:6
18/45 0:08 +1.43 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 exd4 6.a8Q d3+ 7.Kc1 Bf3 8.Qb7+ Ka5 9.Qxg7 Kb6 10.Kd2 (5.380.090) 636 RB:6
19/45 0:11 +1.68++ 1.Bg2 (7.211.146) 635 RB:9
19/45 0:12 +1.68 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 exd4 6.a8Q d3+ 7.Kc1 Bf3 8.Qa3+ Kc4 9.Qc3+ Kd5 10.Qxg7 Kc6 11.Kd2 Kd5 12.Ke3 (8.149.052) 638 RB:15
20/45 0:17 +1.93++ 1.Bg2 (11.449.377) 636 RB:54
20/49 0:21 +1.93 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 exd4 6.a8Q d3+ 7.Kc1 Bf3 8.Qb7+ Ka5 9.Qxg7 Kb5 10.Qd7+ Kb4 11.Kd2 Kc4 12.Qf5 Kb5 (13.824.418) 639 RB:111
21/49 0:28 +2.18++ 1.Bg2 (18.370.091) 636 RB:243
21/49 1:07 +4.31 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 (41.948.608) 620 RB:598
22/52 1:42 +4.43 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 exd4 6.a8Q d3+ 7.Kc1 Bf3 8.Qb8+ Kc4 9.Kd2 Kd5 10.Qb7+ Kd6 11.Qxg7 Kc6 12.b3 Kd6 13.Qg5 Kc6 14.Kc3 (65.304.247) 639 RB:1.691

Rybka 3 : finds it within 1 minute

10.00 0:00 +0.26 1.a7 e4 2.g5 exd3+ 3.Kxd3 Kb5 4.gxf6 gxf6 5.Bh3 Kb6 (35.895) 46
11.00 0:01 +0.24 1.a7 e4 2.dxe4 Ka5 3.e5 fxe5 4.Kc3 Kb6 5.b4 cxb4+ 6.Kxb4 e4 7.Bc4 e5 8.g5 (77.908) 46
12.01 0:04 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ (223.840) 49
13.01 0:05 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ (273.633) 49
14.01 0:07 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ 14.Kd2 (340.514) 47
15.01 0:10 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ 14.Kd2 (462.245) 46
16.01 0:14 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ 14.Kd2 (650.787) 45
17.01 0:21 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Ba8 7.d5 Kc5 8.b4+ Kxc4 9.d6 f3 10.d7 f2 11.d8Q f1Q 12.Qxa8 Qg2+ 13.Kd1 Qf1+ 14.Kd2 (932.179) 44 RB:1
18.01 0:51 0.00 1.a7 e4 2.g5 exd3+ 3.Kxd3 Kb5 4.gxf6 gxf6 5.Kc3+ Kb6 6.Bh3 f5 7.b4 cxb4+ 8.Kxb4 Bd5 9.Kc3 Kxa7 10.Kd4 Kb6 11.Bxf5 Kc6 12.Be4 Bxe4 13.Kxe4 Kd6 (2.248.481) 44 RB:49
18.07 1:05 +0.20++ 1.Bg2 (2.729.025) 42 RB:86
18.01 1:13 +0.40++ 1.Bg2 (2.975.270) 41 RB:129
18.01 1:21 +0.80++ 1.Bg2 (3.224.736) 40 RB:176
18.01 1:29 +1.60++ 1.Bg2 (3.501.681) 39 RB:234
18.01 1:42 +3.20++ 1.Bg2 (3.903.917) 39 RB:343
18.01 33:08 +4.76 1.Bg2 Bxg2 2.e4 f5 3.gxf5 (100.949.007) 51 RB:3.786
19.01 33:16 +4.76 1.Bg2 Bxg2 2.e4 f5 3.gxf5 (101.231.765) 51 RB:3.840
20.01 34:15 +4.96++ 1.Bg2 (103.987.179) 51 RB:4.199
20.01 38:06 +5.12 1.Bg2 (122.107.499) 54 RB:5.629

Zappa Mexico II : finds it within 2 minutes

9/25 0:00 +1.16 1.a7 f5 2.Bh3 f4 3.g5 f3 4.Bxe6 g6 (116.556) 266
9/25 0:00 +1.16 1.a7 f5 2.Bh3 f4 3.g5 f3 4.Bxe6 (126.441) 270
10/26 0:01 +0.80 1.a7 f5 2.Kd2 Kb5 3.d4+ Kb6 4.dxc5+ Kxa7 5.b4 fxg4 (302.670) 269
10/26 0:01 +0.80 1.a7 f5 2.Kd2 Kb5 3.d4+ Kb6 4.dxc5+ Kxa7 5.b4 fxg4 (333.487) 273
11/41 0:02 +0.60 1.a7 e4 2.dxe4 Ka5 3.Bc4 Kb6 4.Kd3 Kxa7 5.Bxe6 (705.167) 291
11/41 0:02 +0.60 1.a7 e4 2.dxe4 Ka5 3.Bc4 Kb6 4.Kd3 Kxa7 5.Bxe6 (808.141) 295
12/41 0:03 +0.60 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.Kd2 f4 (1.200.629) 312
12/41 0:04 +0.60 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.Kd2 f4 (1.330.296) 315
13/41 0:06 +0.34 1.a7 e4 2.dxe4 Ka5 3.Kc3 Kb6 4.Bc4 Kxa7 5.Bxe6 Bxe4 6.Kc4 Kb6 7.Bd5 (2.114.735) 318
13/41 0:08 +0.34 1.a7 e4 2.dxe4 Ka5 3.Kc3 Kb6 4.Bc4 Kxa7 5.Bxe6 Bxe4 6.Kc4 Kb6 7.Bd5 (2.598.950) 324
14/41 0:09 +0.34 1.a7 e4 2.dxe4 Ka5 3.Kc3 Kb6 4.Bc4 Kxa7 5.Bxe6 Bxe4 6.b4 cxb4+ 7.Kc4 (3.191.417) 332
14/41 0:11 +0.34 1.a7 e4 2.dxe4 Ka5 3.Kc3 Kb6 4.Bc4 Kxa7 5.Bxe6 Bxe4 6.b4 cxb4+ 7.Kc4 (3.735.022) 336
15/41 0:20 -0.06 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.Kd3 Kb6 (7.239.068) 355
15/41 0:28 -0.06 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.Kd3 Kb6 (9.845.767) 339
16/51 0:47 -0.08 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.Kd3 Kb6 8.Kc4 Bf3 (16.349.833) 346
16/51 1:58 +3.72 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kc4 8.e6 Bc6 9.e7 Kd4 10.a8Q Bxa8 11.e8Q Bf3+ 12.Ke1 g5 13.Qd8+ Ke4 14.Qa8+ (43.195.953) 364 RB:163
16/51 1:58 +3.72 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kc4 8.e6 Bc6 9.e7 Kd4 10.a8Q Bxa8 11.e8Q Bf3+ 12.Ke1 g5 13.Qd8+ Ke4 14.Qa8+ (43.283.500) 364 RB:163
17/51 2:04 +3.72 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kc4 8.e6 Bc6 9.e7 Kd4 10.a8Q Bxa8 11.e8Q Bf3+ 12.Ke1 g5 13.Qd8+ Ke4 14.Qa8+ (45.806.412) 367 RB:163
17/53 2:06 +3.72 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kc4 8.e6 Bc6 9.e7 Kd4 10.a8Q Bxa8 11.e8Q Bf3+ 12.Ke1 g5 13.Qd8+ Ke4 14.Qa8+ (46.469.566) 367 RB:163

The King 3.33 : finds it shortly after 2 minutes

10008.00 0:01 +0.29 1.a7 e4 2.g5 Ka5 3.gxf6 gxf6 4.Bh3 Kb6 5.a8Q Bxa8 6.Bxe6 exd3+ 7.Kxd3 (505.514) 468
11009.00 0:02 +0.19 1.a7 e4 2.g5 Ka5 3.gxf6 gxf6 4.Kc3 Kb6 5.Bh3 exd3 6.Bxe6 d2 7.Kxd2 Kxa7 (1.092.226) 491
12010.00 0:05 +0.12 1.a7 e4 2.d4 cxd4 3.exd4 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.d5 Ba4+ 7.Kd2 Bb5 (2.586.797) 517
13011.00 0:10 -0.04 1.a7 e4 2.d4 cxd4 3.exd4 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.d5 Bb5 7.d6 Kb6 (5.539.597) 534
14012.00 0:26 -0.09 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Bg6 Ka5 5.Kc3 Kb6 6.Bf7 Kxa7 7.Bxe6 Kb6 8.Kd3 g6 (14.479.229) 540
15013.00 1:04 -0.10 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Ba6 Ka5 5.Bc8 Kb6 6.Bxe6 Kxa7 7.Kd3 Kb6 8.Kc4 Bf3 9.Kd3 (34.464.409) 537
16014.00 1:39 -0.10 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Ba6 Ka5 5.Bc8 Kb6 6.Bxe6 Kxa7 7.Kd3 Kb6 8.Kc4 Bf3 9.Kd3 Kc6 (54.347.523) 548
16014.00 2:16 +0.45 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 c4 7.e6 Bc6 8.e7 Ba4+ 9.Kc1 e2 10.Kd2 e1R 11.Kxe1 (75.894.516) 556
17015.00 2:56 +2.13 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kb3 8.e6 Kxb2 9.e7 Bf3+ 10.Ke1 Bc6 11.a8Q Bxa8 12.e8Q (98.011.627) 553
18016.00 4:49 +2.61 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 e3 6.dxe5 Be4+ 7.Kd1 Kb3 8.e6 Kxb2 9.e7 Bc6 10.Ke2 c4 11.Kxe3 c3 12.e8Q Bxe8 13.a8Q (162.529.966) 560

Shredder 11 : does not find it within 15 minutes

10/10 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (31.565) 335
11/11 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (46.749) 424
12/12 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (61.917) 439
13/13 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (185.855) 593
14/14 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (335.058) 649 SB:2
15/15 0:00 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (514.493) 685 SB:2
16/16 0:01 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (829.341) 716 SB:5
17/17 0:02 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (1.955.641) 753 SB:33
18/18 0:04 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (3.279.797) 765 SB:42
19/19 0:07 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (5.829.867) 777 SB:146
20/20 0:12 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (9.755.974) 774 SB:298
21/21 0:18 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (14.599.447) 772 SB:1.297
22/22 0:26 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (20.355.899) 767 SB:1.863
23/23 0:35 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (27.537.330) 774 SB:3.114
24/24 0:49 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (37.868.693) 764 SB:7.539
25/25 1:22 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (64.216.731) 774 SB:17.053
26/26 2:21 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (108.824.866) 770 SB:72.407
27/27 3:53 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (179.009.838) 767 SB:282.948
28/28 6:09 -0.01 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Ba8 4.Be2 Ka5 5.Kc3 Kb6 6.b4 cxb4+ 7.Kxb4 Bb7 8.Bc4 e5 9.Be6 Bf3 10.Bf5 (285.950.521) 773 SB:484.947

Deep Sjeng 3.0 : does not find it with 15 minutes

10/18 0:00 +0.16 1.a7 f5 2.gxf5 exf5 3.Be2 g5 4.e4 fxe4 5.dxe4 Bxe4+ 6.Kd2 c4 (73.390)
11/20 0:00 +0.25 1.a7 f5 2.gxf5 exf5 3.Be2 g5 4.e4 fxe4 5.dxe4 Bxe4+ 6.Kd2 c4 7.Ke3 (112.092)
12/21 0:00 +0.21 1.a7 f5 2.gxf5 exf5 3.Bh3 g6 4.e4 fxe4 5.Bd7 Ba8 6.dxe4 Kc4 7.Kd2 Bxe4 8.Be6+ (174.750)
13/22 0:00 +0.30 1.a7 f5 2.gxf5 exf5 3.Bh3 g6 4.e4 fxe4 5.Bd7 Ba8 6.dxe4 Bxe4+ 7.Kd2 Bf3 8.Ke3 (290.943)
14/31 0:01 -0.10-- 1.a7 (1.254.786) 945
14/31 0:01 -0.08 1.a7 e4 2.dxe4 Ka5 3.e5 fxe5 4.Bc4 Kb6 5.Kd3 Kxa7 6.Bxe6 g5 7.e4 Kb6 8.Bd5 Bb5+ 9.Bc4 Bxc4+ 10.Kxc4 (1.417.594) 953
15/33 0:02 -0.10 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Kd2 Ka5 5.Bc4 Kb6 6.Bxe6 Kxa7 7.g5 Be4 8.gxf6 gxf6 9.Ke2 (2.359.134) 986
16/37 0:03 -0.01 1.a7 e4 2.dxe4 Ka5 3.e5 fxe5 4.Bc4 Kb6 5.Bxe6 Be4+ 6.Kc3 Kxa7 7.Bf5 Bc6 8.g5 Kb6 9.e4 Bb5 (3.829.200) 987
17/44 0:07 0.00 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.e4 Ka5 5.Kc3 Kb6 6.Kc4 Bb5+ 7.Kc3 Bc6 (7.833.498) 984
18/44 0:14 -0.14 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Bg6 Ka5 5.Kd3 Kb6 6.Be8 Bd5 7.e4 Bb7 8.Bf7 Kxa7 9.Bxe6 Ba6+ 10.Bc4 Bxc4+ 11.Kxc4 (14.241.252) 997
19/44 0:22 -0.13 1.a7 e4 2.dxe4 Bxe4+ 3.Bd3 Bc6 4.Bg6 Ka5 5.Kd3 Kb6 6.Bf7 Kxa7 7.Bxe6 Kb7 8.g5 fxg5 9.e4 Kc7 10.e5 Bf3 11.Ke3 g4 12.Kf4 (22.611.603) 999
20/44 0:42 -0.04 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.g5 fxg5 8.Kd3 Bb5+ 9.Kc3 Kb6 10.e4 Kc6 11.e5 Kd5 12.e6 (42.317.633) 1001
21/47 1:08 -0.02 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.g5 fxg5 8.Kd3 Bb5+ 9.Kc3 Kb6 10.e4 Kc6 11.e5 Kd5 12.e6 Kd6 (67.442.675) 983
22/47 1:53 -0.04 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.e4 g5 8.Ke3 Kb7 9.Be6 Bb5 10.Kd2 Kb6 11.Ke3 Kc6 (110.816.911) 977
23/49 3:40 -0.06 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.g5 fxg5 8.Kd3 Bb5+ 9.Ke4 Be2 10.Be6 g6 11.Bf7 Kb6 12.Bxg6 Kc6 13.Ke5 Bf3 (211.382.591) 959
24/55 7:20 -0.13 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.g5 fxg5 8.Kd3 Kb6 9.e4 Bb5+ 10.Ke3 Kc6 11.Kf3 Kd6 12.Kg4 Bc6 13.Kxg5 (422.919.705) 960
25/55 11:43 -0.13 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.g5 fxg5 8.Kd3 Kb6 9.e4 Bb5+ 10.Ke3 Kc6 11.Kf3 Kd6 12.Kg4 Bc6 13.Kxg5 (671.913.065) 954

Naum 3.1 : does not find it with 15 minutes

10/22 0:00 +0.15 1.a7 e4 2.d4 cxd4 3.exd4 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 (596.032) 1058
11/22 0:00 +0.10 1.a7 e4 2.d4 cxd4 3.exd4 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.d5 (770.866) 1072
12/23 0:01 +0.17 1.a7 e4 2.d4 cxd4 3.exd4 e5 4.dxe5 fxe5 5.Kd2 Ka5 6.Ke3 Kb6 (1.206.445) 1057
13/26 0:02 +0.05 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.Kd2 fxg4 5.Ke3 g3 6.Kf4 Ka5 7.Kxg3 (2.352.800) 1053
14/26 0:03 0.00 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.Kd2 fxg4 5.Ke3 g3 6.Kf4 Ka5 7.Kxg3 Kb6 (3.698.710) 1066 RB:2
15/32 0:06 +0.08 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.Kd2 Ka5 8.d5 (6.694.217) 1071 RB:4
16/29 0:13 -0.02 1.a7 e4 2.dxe4 Bxe4+ 3.Kd2 Ka5 4.Bc4 Kb6 5.Bxe6 Kxa7 6.Bf5 Bc6 7.e4 Kb6 8.Ke3 Bb5 (14.405.749) 1084 RB:67
17/31 0:25 -0.01 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.d5 Kc5 8.Kc3 e3 9.b4+ (26.488.197) 1053 RB:114
18/42 0:43 +0.12 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.d5 Kc5 8.b4+ Kb6 9.d6 f3 (43.620.944) 997 RB:607
19/35 1:01 +0.07 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.d5 Kc5 8.b4+ Kb6 9.d6 f3 10.Kd2 (61.941.720) 1015 RB:773
20/42 2:29 +0.10 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.d5 Kc5 8.b4+ Kd6 9.Kc3 Ke5 10.b5 f3 (158.447.483) 1060 RB:8.288
21/41 3:43 +0.01 1.a7 e4 2.d4 cxd4 3.exd4 f5 4.gxf5 exf5 5.b3 f4 6.Bc4 Bb7 7.d5 Kc5 8.b4+ Kd6 9.Kd2 Ke5 10.Bb3 g5 11.b5 (237.503.119) 1063 RB:9.691
22/44 5:52 +0.02 1.a7 e4 2.d4 cxd4 3.exd4 g5 4.b3 e5 5.dxe5 fxe5 6.Kd2 Ka5 7.Ke3 Kb6 8.Bg2 Kxa7 9.Bxe4 Bd7 10.Bf5 Bc6 11.b4 Kb6 (382.029.490) 1082 RB:14.444
23/48 11:49 0.00 1.a7 e4 2.d4 g5 3.Ba6 cxd4 4.exd4 f5 5.Bc8 fxg4 6.Bxe6 g3 7.d5 Bb7 8.d6 g2 9.d7 g1Q 10.d8Q Qc5+ 11.Kd2 e3+ 12.Ke2 (788.873.290) 1111 RB:29.057
24/47 18:41 +0.03 1.a7 e4 2.d4 g5 3.b3 cxd4 4.exd4 f5 5.gxf5 exf5 6.Bc4 Bb7 7.Be6 f4 8.d5 Kc5 9.b4+ Kd6 10.Kd2 Kc7 11.b5 Ba8 12.Kc3 Kd6 (1.276.048.022) 1137 RB:62.512

[Albert Silver]

I analyzed this position with several engines. Here are the results

Hardware: AMD Athlon 64 Processor 3200+ 2200 MHz

Is the CPU overclocked? An Athlon64 3200+ is normally less than 2.2GHz.

Albert

[kgburcham]

I found several programs would easily solve these positions with winning scores. I do not have Rybka 3 so I do not know how it does with these.

I did enjoy the M21


[d] 8/6p1/P1b1pp2/2p1p3/1k4P1/3PP3/1PK5/5B2 w - -

17/53 0:29 +3.50 1.Bg2 Bxg2 2.e4 f5 3.gxf5 exf5 4.a7 fxe4 5.d4 exd4 6.a8Q d3+ 7.Kc1 Bf3 8.Qb8+ Kc4 9.Kd2 Kd5 10.Qg8+ Ke5 11.Qxg7+ Kd5 12.Qf7+ Ke5 13.Qf8 Kd5 (78.830.011) 2642


[d] 1r6/1pb1k1p1/4p2p/1p1p4/3Pp2P/1R2P1PB/1P2P1K1/8 b - -

15/26 0:01 -0.91 1...b4 2.Rxb4 b5 3.Rb3 b4 4.g4 Bd6 5.Kf2 Rc8 6.g5 hxg5 7.hxg5 Rc2 8.Bg4 (3.685.721) 2405
16/30 0:03 -0.91 1...b4 2.Rxb4 b5 3.Rb3 b4 4.Bg4 Bd6 5.Bh5 Rc8 6.Kf2 Rc1 7.Kg2 Kf6 8.Be8 (7.728.342) 2497
18/31 0:08 -0.93 1...b4 2.Rxb4 b5 3.Rb3 b4 4.Bg4 Bd6 5.Bh5 Kf6 6.Bg4 Rc8 7.Bh3 Rc1 8.h5 Ke7 9.Bg4 Kf6 10.Kf2 (22.561.966) 2729
19/31 0:14 -0.93 1...b4 2.Rxb4 b5 3.Rb3 b4 4.Bg4 Bd6 5.h5 Rc8 6.Kh3 Kd7 7.Kg2 Rc1 8.Kf2 Ke7 9.Kg2 Kf6 10.Kf2 Kf7 11.Kg2 Ke7 12.Bh3 Kf6 (39.193.777) 2787
20/34 0:25 -0.93 1...b4 2.Rxb4 b5 3.Rb3 b4 4.Bg4 Bd6 5.h5 Rc8 6.Kh3 Kd7 7.Kg2 Rc1 8.Kf2 Ke7 9.Kg2 Kf6 10.Kf2 Kf7 11.Kg2 g5 (71.481.730) 2832


[d] r1b2q2/pp1nb2k/4pr1p/4Np2/2pP1Q1P/2N5/PPB2P2/2K3RR w - -

15/51 0:17 +1.62++ 1.Ne4 (60.305.306) 3525
15/51 0:35 +1.95 1.Ne4 Nxe5 2.Nxf6+ Qxf6 3.dxe5 Qf7 4.Qxc4 Bd7 5.Kb1 Rg8 6.Rxg8 Qxg8 7.Rd1 Bc6 8.Ka1 Kh8 9.Bb3 Bf3 10.Rc1 Bd5 11.Qc8 Bxb3 12.axb3 (126.270.053) 3522
16/57 0:58 +1.95 1.Ne4 Nxe5 2.Nxf6+ Qxf6 3.dxe5 Qf7 4.Rh3 Bd7 5.Rhg3 b5 6.Qf3 Rd8 7.Qg2 Bf8 8.Rg6 Bc8 9.Qg3 Qd7 10.Kb1 Bb7 11.f3 Qe7 12.a4 a6 13.axb5 axb5 (206.058.450) 3521


[d] k4r2/P4P2/Kp1r2P1/1P6/2B4p/1PbpB3/5P2/8 w - -

11/41 0:00 +2.52 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 h3 5.Bh6 Rd8 6.Bf4 Bd4 7.Bc7 Rh8 8.Bd6 Bg7 (1.247.151) 1596
12/43 0:01 +2.79 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 h3 5.Bh6 Rd8 6.Bf4 Bd4 7.Bc7 Rh8 8.Bh2 Rd8 9.f3 Rh8 (2.123.529) 1720
12/43 0:01 +2.79 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 h3 5.Bh6 Rd8 6.Bf4 Bd4 7.Bc7 Rh8 8.Bh2 Rd8 9.f3 Rh8 (2.229.554) 1719
13/45 0:02 +2.16 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 Kxa7 9.Be5 Rd1+ (4.149.311) 1806
13/45 0:02 +2.16 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 Kxa7 9.Be5 Rd1+ (4.575.864) 1796
14/47 0:09 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (19.275.992) 1977
14/47 0:10 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (20.128.867) 1975
15/49 0:13 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (27.039.474) 2040
15/49 0:13 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (28.071.838) 2041
16/51 0:16 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (32.907.977) 2048
16/51 0:17 +1.76 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 Ra1+ 5.Kxb6 Rg1 6.Bd6 Bg7 7.Kc6 Rc1+ 8.Kd7 h3 9.b6 Kb7 10.b4 Ra1 11.Ke8 Re1+ 12.Kd8 Ra1 13.a8Q+ Rxa8+ 14.Ke7 (35.482.154) 2053
17/53 0:53 0.00 1.Bc5 d2 2.Be2 d1Q 3.Bxd1 Rxd1 4.Bxf8 h3 5.Bh6 Rd8 6.Bf4 Bg7 7.Kxb6 Rc8 8.Bh2 Rc2 9.Be5 Rxf2 10.Bxg7 h2 11.Bd4 h1Q 12.Bxf2 Qf3 13.Bc5 Qc6+ 14.bxc6 (114.957.301) 2137
17/53 1:03 +1.32 1.Bd4 Bxd4 2.Bxd3 Re6 3.Bc4 Rd6 4.Be2 Rf6 5.g7 R6xf7 6.gxf8R+ Rxf8 7.Bc4 Rf5 8.Be6 Rxb5 9.b4 Rg5 10.f4 b5 11.fxg5 Bxa7 12.Kxb5 Kb7 13.Kc4 Be3 14.g6 (137.458.942) 2157
17/53 1:03 +1.32 1.Bd4 Bxd4 2.Bxd3 Re6 3.Bc4 Rd6 4.Be2 Rf6 5.g7 R6xf7 6.gxf8R+ Rxf8 7.Bc4 Rf5 8.Be6 Rxb5 9.b4 Rg5 10.f4 b5 11.fxg5 Bxa7 12.Kxb5 Kb7 13.Kc4 Be3 14.g6 (137.858.536) 2157
18/55 1:34 +12.69 1.Bd4 Rd7 2.Bxc3 h3 3.g7 Rxa7+ 4.Kxb6 Rb8+ 5.Kc5 Rxf7 6.Bxf7 h2 7.Bd5+ Ka7 8.b6+ Ka6 9.g8Q Rxg8 10.Bxg8 h1B 11.Bc4+ Kb7 12.Bd5+ Bxd5 13.Kxd5 Kxb6 14.f4 (203.897.785) 2164
18/55 1:36 +12.69 1.Bd4 Rd7 2.Bxc3 h3 3.g7 Rxa7+ 4.Kxb6 Rb8+ 5.Kc5 Rxf7 6.Bxf7 h2 7.Bd5+ Ka7 8.b6+ Ka6 9.g8Q Rxg8 10.Bxg8 h1B 11.Bc4+ Kb7 12.Bd5+ Bxd5 13.Kxd5 Kxb6 14.f4 (208.163.919) 2157
19/57 2:36 +15.65 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb8 7.g7 Kc7 8.Be6 Rd8 9.Kc5 d2 10.Bxd2 Kb7 11.Bd5+ (348.381.169) 2222
19/57 2:40 +15.65 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb8 7.g7 Kc7 8.Be6 Rd8 9.Kc5 d2 10.Bxd2 Kb7 11.Bd5+ (354.831.217) 2217
20/59 4:06 +16.14 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 h3 8.g8Q Rxg8 9.Bxg8 Kb6 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (569.483.737) 2312
20/59 4:13 +16.14 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 h3 8.g8Q Rxg8 9.Bxg8 Kb6 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (585.505.708) 2305
21/61 8:22 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.170.148.349) 2327
21/61 8:31 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.187.717.573) 2323
22/61 8:31 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.187.717.601) 2323
22/63 8:33 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.192.764.877) 2322
23/65 8:44 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.214.852.961) 2315
23/65 8:49 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.225.402.095) 2313
24/67 9:44 +M21 1.Bd4 Rd7 2.Bxc3 Rxa7+ 3.Kxb6 Rb8+ 4.Kc5 Rc8+ 5.Kb4 Rxf7 6.Bxf7 Kb7 7.g7 Kb6 8.g8Q Rxg8 9.Bxg8 h3 10.Bd5 h2 11.Bc6 h1Q 12.Bxh1 Kc7 13.Kc5 Kd7 14.b6 (1.316.486.692) 2252

[d] 3R4/1kr2pp1/2p1p3/1pP1PnBP/pP3K2/8/P4P2/8 w - -

22/44 0:08 +0.86++ 1.Bf6 (49.434.800) 5512
22/53 0:19 +1.27 1.Bf6 g6 2.hxg6 fxg6 3.Kg5 Rc8 4.Rd7+ Rc7 5.Rd3 Rf7 6.Kxg6 Rf8 7.Rd7+ Kc8 8.Rh7 Kb8 9.f4 Kc8 10.Be7 Re8 11.Kf6 Nd4 12.Kf7 Kd7 13.Bf6 Nf3 14.Rh1 (103.745.517) 5444
23/53 0:23 +1.35 1.Bf6 g6 2.hxg6 fxg6 3.Kg5 Rc8 4.Rd7+ Rc7 5.Rd3 Rf7 6.Kxg6 Rf8 7.Rd7+ Kc8 8.Rh7 Kb8 9.f4 Kc8 10.Be7 Re8 11.Kf6 Nd4 12.Kf7 Kd7 13.Bf6 Nf3 14.Rh1 (126.356.194) 5439
24/53 0:30 +1.35 1.Bf6 g6 2.hxg6 fxg6 3.Kg5 Rc8 4.Rd7+ Rc7 5.Rd3 Rf7 6.Kxg6 Rf8 7.Rd7+ Kc8 8.Rh7 Kb8 9.f4 Kc8 10.Be7 Re8 11.Kf6 Nd4 12.Kf7 Kd7 13.Bf6 a3 14.Kg6+ (166.478.630) 5442

[genorb]

I analyzed this position with several engines. Here are the results

Hardware: AMD Athlon 64 Processor 3200+ 2200 MHz

Is the CPU overclocked? An Athlon64 3200+ is normally less than 2.2GHz.

Albert

No it's not overclocked. This is what I see when I click on "panel control>system>general" (if everything is the same on an english system, mine is french).

And it's seems that it's confirmed by wikipedia

http://en.wikipedia.org/wiki/List_of_AM ... processors

Fabian