bm 19...Bf5
(Nolot #6, 13...axb5)
[d] 1Qb2rk1/1p3ppp/5q2/1p1Pp3/1PPpPBn1/P5P1/7P/R3KB1R b - - 0 19
[White "Malaniuk, V."]
[Black "Ivanchuk, V."]
[Result "0-1"]
[ECO "E20"]
[PlyCount "68"]
[EventDate "1988"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Be7 6. e4 dxe4 7. fxe4 e5 8. d5
Ng4 9. Nf3 Bc5 10. b4 Bf2+ 11. Ke2 c5 12. Nb5 a6 13. Qa4 axb5 14. Qxa8 Bd4 15.
Nxd4 cxd4 16. Qxb8 O-O 17. Ke1 Qh4+ 18. g3 Qf6 19. Bf4 g5 20. c5 exf4 21. Qd6
Qg7 22. Bd3 Ne5 23. Kd2 f3 24. Qe7 g4 25. Bxb5 Ng6 26. Qg5 h6 27. Qh5 d3 28.
Bxd3 Re8 29. h3 Re5 30. hxg4 Rxh5 31. gxh5 Ne5 32. Rae1 Qg5+ 33. Kc2 f2 34. Rd1
Qe3 0-1
Test position 19...Bf5
Moderator: Ras
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Test position 19...Bf5
Crafty concurs.kgburcham wrote:bm 19...Bf5
(Nolot #6, 13...axb5)
[d] 1Qb2rk1/1p3ppp/5q2/1p1Pp3/1PPpPBn1/P5P1/7P/R3KB1R b - - 0 19
Code: Select all
Crafty v23.0 (8 cpus)
White(1): book off
book file disabled.
White(1): ponder off
pondering disabled.
White(1): setboard 1Qb2rk1/1p3ppp/5q2/1p1Pp3/1PPpPBn1/P5P1/7P/R3KB1R b - - 0 19
Black(1): st 7200
search time set to 7200.00.
Black(1): display
+---+---+---+---+---+---+---+---+
8 | |-Q-|<B>| . | |<R>|<K>| . |
+---+---+---+---+---+---+---+---+
7 | . |<P>| . | | . |<P>|<P>|<P>|
+---+---+---+---+---+---+---+---+
6 | | . | | . | |<Q>| | . |
+---+---+---+---+---+---+---+---+
5 | . |<P>| . |-P-|<P>| | . | |
+---+---+---+---+---+---+---+---+
4 | |-P-|-P-|<P>|-P-|-B-|<N>| . |
+---+---+---+---+---+---+---+---+
3 |-P-| | . | | . | |-P-| |
+---+---+---+---+---+---+---+---+
2 | | . | | . | | . | |-P-|
+---+---+---+---+---+---+---+---+
1 |-R-| | . | |-K-|-B-| . |-R-|
+---+---+---+---+---+---+---+---+
a b c d e f g h
Black(1): go
time limit 120:00 (+0.00) (120:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
9 0.06 0.80 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Kd2 Qg5 6. Rxh1 Qxg4
7. Qxb5 fxg3 8. hxg3 Qxg3
9-> 0.07 0.80 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Kd2 Qg5 6. Rxh1 Qxg4
7. Qxb5 fxg3 8. hxg3 Qxg3 (s=2)
10 0.08 0.80 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Kd2 Qg5 6. Rxh1 Qxg4
7. Qxb5 fxg3 8. hxg3 Qxg3
10 0.18 0.59 1. ... d3 2. Rd1 bxc4 3. Bxd3 exf4
4. Rc1 fxg3 5. Rf1 Qd8 6. h3
10-> 0.18 0.59 1. ... d3 2. Rd1 bxc4 3. Bxd3 exf4
4. Rc1 fxg3 5. Rf1 Qd8 6. h3
11 0.26 0.50 1. ... d3 2. Rc1 exf4 3. Qxf4 Qd4 4.
Bxd3 Qxd3 5. cxb5 Nf6 6. Rd1 Qxe4+
7. Qxe4 Nxe4
11 0.37 0.37 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Qxb5 Qe5+ 6. Kf1 fxg3
7. Kg1
11-> 0.37 0.37 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Qxb5 Qe5+ 6. Kf1 fxg3
7. Kg1 (s=2)
12 0.51 0.26 1. ... Bf5 2. Qxb7 Bxe4 3. Rg1 exf4
4. Qc6 Qxc6 5. dxc6 f3 6. Ra2 f2+ 7.
Rxf2 Nxf2 8. Kxf2 bxc4 9. Bxc4 Bxc6
12 0.72 -0.01 1. ... d3 2. Ra2 exf4 3. Qxf4 bxc4
4. h3 Qc3+ 5. Qd2 Qe5 6. Qf4 Qc3+
12-> 0.74 -0.01 1. ... d3 2. Ra2 exf4 3. Qxf4 bxc4
4. h3 Qc3+ 5. Qd2 Qe5 6. Qf4 Qc3+ (s=2)
13 0.96 -0.11 1. ... d3 2. Ra2 exf4 3. Qxf4 bxc4
4. h3 Qc3+ 5. Rd2 Nf6 6. Bg2 Re8 7.
Kf2 Qd4+ 8. Qe3 Nxe4+ 9. Bxe4 Rxe4
10. Qxd4 Rxd4
13 1.23 -0.28 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Qxb5 Qe5+ 6. Kf2 fxg3+
7. hxg3 Qe3+ 8. Kf1 f5 9. Bh5 Qxg3
13-> 1.27 -0.28 1. ... Bf5 2. Qxb7 Bxe4 3. Bh3 Bxh1
4. Bxg4 exf4 5. Qxb5 Qe5+ 6. Kf2 fxg3+
7. hxg3 Qe3+ 8. Kf1 f5 9. Bh5 Qxg3
(s=2)
14 1.85 -1 1. ... Bf5!
14 2.98 -1.35 1. ... Bf5 2. Qc7 Bxe4 3. Rg1 exf4
4. Qxf4 Qxf4 5. gxf4 Nxh2 6. Bg2 Re8
7. Kd2 bxc4 8. Bxe4 Rxe4
14-> 3.18 -1.35 1. ... Bf5 2. Qc7 Bxe4 3. Rg1 exf4
4. Qxf4 Qxf4 5. gxf4 Nxh2 6. Bg2 Re8
7. Kd2 bxc4 8. Bxe4 Rxe4
15 3.90 -1 1. ... Bf5!
15 5.82 -1.81 1. ... Bf5 2. Qxb7 exf4 3. Bd3 Bxe4
4. Bxe4 d3 5. Rb1 Qc3+ 6. Kf1 Qc2 7.
Qb6 Ne3+ 8. Kg1 Qxb1+ 9. Kf2 Qa2+ 10.
Kf3 Qxc4
15-> 6.28 -1.81 1. ... Bf5 2. Qxb7 exf4 3. Bd3 Bxe4
4. Bxe4 d3 5. Rb1 Qc3+ 6. Kf1 Qc2 7.
Qb6 Ne3+ 8. Kg1 Qxb1+ 9. Kf2 Qa2+ 10.
Kf3 Qxc4
16 7.95 -2.04 1. ... Bf5 2. Qc7 Bxe4 3. h3 d3 4.
Rc1 exf4 5. Qxf4 Bxh1 6. hxg4 Re8+
7. Kf2 Qb2+ 8. Kg1 Be4 9. cxb5 Qd4+
10. Qf2 Qxd5 <HT>
16-> 8.50 -2.04 1. ... Bf5 2. Qc7 Bxe4 3. h3 d3 4.
Rc1 exf4 5. Qxf4 Bxh1 6. hxg4 Re8+
7. Kf2 Qb2+ 8. Kg1 Be4 9. cxb5 Qd4+
10. Qf2 Qxd5 <HT>
17 11.27 -1 1. ... Bf5!
17 21.54 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 exf4
4. Bxg4 d3 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4
17-> 23.82 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 exf4
4. Bxg4 d3 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4
18 29.62 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 d3 4.
Bxg4 exf4 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4 <HT>
18-> 1:19 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 d3 4.
Bxg4 exf4 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4 <HT> (s=4)
19 1:39 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 d3 4.
Bxg4 exf4 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4 (s=3)
19-> 2:09 -2.51 1. ... Bf5 2. Qc7 Bxe4 3. Be2 d3 4.
Bxg4 exf4 5. Rd1 Bxh1 6. Qxf4 Qxf4
7. gxf4 bxc4 8. d6 f5 9. Kd2 fxg4 10.
Rxh1 Rxf4 (s=3)
20 2:38 -1 1. ... Bf5!
20 4:12 -2.58 1. ... Bf5 2. Qc7 Bxe4 3. Bh3 d3 4.
Rd1 exf4 5. Qxf4 Qc3+ 6. Qd2 Qd4 7.
Bxg4 Bxh1 8. Qxd3 Qxg4 9. cxb5 Re8+
10. Kf2 Be4 11. Qb3 Re5 12. Kg1 (s=2)
20-> 7:08 -2.58 1. ... Bf5 2. Qc7 Bxe4 3. Bh3 d3 4.
Rd1 exf4 5. Qxf4 Qc3+ 6. Qd2 Qd4 7.
Bxg4 Bxh1 8. Qxd3 Qxg4 9. cxb5 Re8+
10. Kf2 Be4 11. Qb3 Re5 12. Kg1 (s=2)
-
BBauer
- Posts: 658
- Joined: Wed Mar 08, 2006 8:58 pm
Re: Test position 19...Bf5
Thank you for posting this great game.
Is there any evidence that Bc8f5 is better than d4d3?
Stockfish seams to prefer d4d3 and Rybkav2.2mp.x64 gives
19 06:10 +1.99 d4d3
19 06:10 +1.26 Bc8f5
So up to now I'm not convinced that Bc8f5 is better.
Kind regards
Bernhard
Is there any evidence that Bc8f5 is better than d4d3?
Stockfish seams to prefer d4d3 and Rybkav2.2mp.x64 gives
19 06:10 +1.99 d4d3
19 06:10 +1.26 Bc8f5
So up to now I'm not convinced that Bc8f5 is better.
Kind regards
Bernhard
-
Omega-three
Re: Test position 19...Bf5
Hi Bernhard
Rybka 3 prefers Bf5
[-2.60] d=15 19...Bf5 (0:03:14) 32514kN
[-2.20] d=15 19...Bf5 (0:02:27) 23187kN
[-2.00] d=15 19...Bf5 (0:01:57) 17245kN
[-1.80] d=15 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.e5 d2 23.Qxd2 Qe4 24.Qe2 Qxh1 25.h3 Nh2 26.Qg2 Qxf1 27.Qxf1 Nxf1 28.Kxf1 Bxh3 29.Kf2 Rd8 30.d6 bxc4 31.Rxc4 f6 32.Rc7 fxe5 33.Rxb7 Rxd6 34.a4 Rf6 (0:01:08) 7626kN
[-1.80] d=14 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.e5 d2 23.Qxd2 Qe4 24.Qe2 Qxh1 25.h3 Nh2 26.Qg2 Qxf1 27.Qxf1 Nxf1 28.Kxf1 Bxh3 29.Kf2 Rd8 30.d6 bxc4 31.Rxc4 f6 32.Rc7 fxe5 33.Rxb7 Rxd6 34.a4 Rf6 (0:00:53) 4612kN
[-1.65] d=14 19...d3 (0:00:32) 2613kN
[-1.45] d=13 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:14) 959kN
[-1.45] d=12 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:10) 543kN
[-1.61] d=11 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:08) 396kN
[-1.69] d=11 19...d3 (0:00:08) 374kN
[-1.49] d=11 19...d3 (0:00:04) 63kN
[-1.29] d=10 19...d3 20.Rc1 exf4 (0:00:03) 3kN
[-1.29] d=9 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.h3 Ne3 23.Rh2 bxc4 24.e5 Qa7 25.Qe4 (0:00:00) 0kN
[-1.29] d=8 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.h3 Ne3 23.Rh2 bxc4 24.e5 Qa7 25.Qe4 (0:00:00) 0kN
Rybka 3 prefers Bf5
[-2.60] d=15 19...Bf5 (0:03:14) 32514kN
[-2.20] d=15 19...Bf5 (0:02:27) 23187kN
[-2.00] d=15 19...Bf5 (0:01:57) 17245kN
[-1.80] d=15 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.e5 d2 23.Qxd2 Qe4 24.Qe2 Qxh1 25.h3 Nh2 26.Qg2 Qxf1 27.Qxf1 Nxf1 28.Kxf1 Bxh3 29.Kf2 Rd8 30.d6 bxc4 31.Rxc4 f6 32.Rc7 fxe5 33.Rxb7 Rxd6 34.a4 Rf6 (0:01:08) 7626kN
[-1.80] d=14 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.e5 d2 23.Qxd2 Qe4 24.Qe2 Qxh1 25.h3 Nh2 26.Qg2 Qxf1 27.Qxf1 Nxf1 28.Kxf1 Bxh3 29.Kf2 Rd8 30.d6 bxc4 31.Rxc4 f6 32.Rc7 fxe5 33.Rxb7 Rxd6 34.a4 Rf6 (0:00:53) 4612kN
[-1.65] d=14 19...d3 (0:00:32) 2613kN
[-1.45] d=13 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:14) 959kN
[-1.45] d=12 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:10) 543kN
[-1.61] d=11 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.cxb5 d2 (0:00:08) 396kN
[-1.69] d=11 19...d3 (0:00:08) 374kN
[-1.49] d=11 19...d3 (0:00:04) 63kN
[-1.29] d=10 19...d3 20.Rc1 exf4 (0:00:03) 3kN
[-1.29] d=9 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.h3 Ne3 23.Rh2 bxc4 24.e5 Qa7 25.Qe4 (0:00:00) 0kN
[-1.29] d=8 19...d3 20.Rc1 exf4 21.Qxf4 Qd4 22.h3 Ne3 23.Rh2 bxc4 24.e5 Qa7 25.Qe4 (0:00:00) 0kN
-
BBauer
- Posts: 658
- Joined: Wed Mar 08, 2006 8:58 pm
Re: Test position 19...Bf5
Hi Mike,
here my result up to "rybka-depth" 25.
The scores are nearly the same.
Kind regards
Bernhard
here my result up to "rybka-depth" 25.
Code: Select all
Rybka v2.2.mp.x64:
24 2:44:06 2.204.878.708 229.288 +1,68 Bc8f5 Qb8c7 Bf5xe4 Bf1h3
24 2:44:06 1.797.858.468 225.087 +1,77 d4d3 Ra1c1 Bc8d7 Qb8c7
------------------------------------------------------------------------
25 6:15:02 4.476.258.858 203.696 +1,84 Bc8f5 Qb8c7 Bf5xe4 Bf1h3
25 6:15:02 3.448.596.426 223.995 +1,88 d4d3 Ra1c1 Bc8d7 Qb8c7
Kind regards
Bernhard
-
Edsel Apostol
- Posts: 803
- Joined: Mon Jul 17, 2006 5:53 am
- Full name: Edsel Apostol
Re: Test position 19...Bf5
Twisted Logic on single core:
Code: Select all
FEN: 1Qb2rk1/1p3ppp/5q2/1p1Pp3/1PPpPBn1/P5P1/7P/R3KB1R b - - 0 19
T20090917:
8/17 00:00 47.810 0 -0.91 Qf6g6 Bf1g2 e5xf4 c4xb5 Ng4e3 Bg2f3 Ne3c2+ Ke1d2 Nc2xa1 Rh1xa1
9/20 00:00 79.518 0 -1.00 Qf6g6 Bf1g2 e5xf4 c4xb5 Ng4e3 Bg2f3 Ne3c2+ Ke1d2 Nc2xa1 Rh1xa1 f4xg3 Qb8xg3
10/23 00:00 152.723 0 -1.30 Qf6g6 Bf1d3 b5xc4 Ra1c1 c4xd3 Rc1xc8 Qg6xe4+ Ke1d2 Qe4g2+ Kd2xd3 Qg2f3+ Kd3c2 Ng4e3+ Kc2b3 Ne3xd5+ Kb3b2
10/27 00:00 232.609 0 -0.86 Bc8f5 Qb8xb7 Bf5xe4 Bf1e2 Be4xh1 Be2xg4 e5xf4 Qb7xb5 Qf6e5+ Ke1d1 f4xg3
11/27 00:00 384.905 0 -0.54 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 e4xf5 c4xd3 Ke1d2 Qf6xf5 h2h3 Ng4e3
12/26 00:01 829.115 616.901 +0.16 Bc8f5 Qb8xb7 Bf5xe4 Bf1e2 Be4xh1 Be2xg4 e5xf4 Qb7xb5 Qf6e5+ Ke1f1 f4xg3 Ra1e1 g3g2+ Kf1f2 Qe5xh2
13/31 00:02 1.969.472 685.033 +0.28 Bc8f5 Qb8xb7 Bf5xe4 Qb7c6 Qf6xc6 d5xc6 Be4xh1 Bf1h3 e5xf4 Bh3xg4 f7f5 Bg4e2 f4xg3 h2xg3 Bh1xc6 c4xb5
14/30 00:03 2.735.644 705.972 +0.28 Bc8f5 Qb8xb7 Bf5xe4 Qb7c6 Qf6xc6 d5xc6 Be4xh1 Bf1h3 e5xf4 Bh3xg4 f7f5 Bg4e2 f4xg3 h2xg3 Bh1xc6 c4xb5
15/35 00:10 7.794.498 743.395 +1.23 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 Rh1f1 c4xd3 Rf1xf4 Qf6e5 d5d6 Bf5e6 Qb7e7 Ng4e3 Ra1a2 Rf8c8
16/37 00:18 13.945.581 744.996 +1.26 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 d5d6 c4xd3 Qb7e7 Bf5e6 Qe7xf6 Ng4xf6 e4e5 Nf6e4 g3xf4 d3d2+ Ke1f1 Be6h3+ Kf1g1 Rf8c8
17/40 00:28 21.277.683 742.909 +1.13 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 d5d6 c4xd3 Qb7e7 Bf5e6 Qe7xf6 Ng4xf6 e4e5 Nf6e4 g3xf4 d3d2+ Ke1f1 Be6h3+ Kf1g1 Rf8c8 Ra1d1
18/41 01:05 48.694.625 749.678 +1.52 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 d5d6 c4xd3 Qb7e7 Bf5e6 Qe7xf6 Ng4xf6 Ke1d2 Nf6xe4+ Kd2xd3 Ne4f2+ Kd3xd4 Rf8d8 Kd4c5 Nf2xh1 Ra1xh1 Rd8c8+ Kc5d4 f4f3
19/42 02:08 96.043.248 745.150 +1.57 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 d5d6 c4xd3 Qb7e7 Bf5e6 Qe7xf6 Ng4xf6 e4e5 Nf6e4 g3xf4 d3d2+ Ke1e2 Be6g4+ Ke2d3 d2d1Q+ Rh1xd1 Ne4f2+ Kd3xd4 Nf2xd1 Ra1c1
20/44 05:20 238.451.358 743.200 +1.72 Bc8f5 Qb8xb7 e5xf4 Bf1d3 b5xc4 d5d6 c4xd3 Qb7e7 Bf5e6 Qe7xf6 Ng4xf6 Ke1d2 Nf6xe4+ Kd2xd3 Ne4f2+ Kd3xd4 Rf8d8 Rh1f1 f4xg3 h2xg3 Rd8xd6+ Kd4e5 Rd6d2 Ra1b1 Rd2d5+ Ke5f4 Rd5d4+ Kf4e5
Edsel Apostol
https://github.com/ed-apostol/InvictusChess
https://github.com/ed-apostol/InvictusChess
-
jdart
- Posts: 4410
- Joined: Fri Mar 10, 2006 5:23 am
- Location: http://www.arasanchess.org
Re: Test position 19...Bf5
This one isn't very difficult for modern computers. IMO more interesting is Nolot #10:
[d] r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - -
Rxf7 from this game:
[Event "Amsterdam IBM"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "3"]
[Result "1-0"]
[White "John Van der Wiel"]
[Black "Zoltan Ribli"]
[ECO "B93"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5
7. Nf3 Nbd7 8. a4 Be7 9. Bc4 O-O 10. O-O Qb6+ 11. Kh1 exf4
12. Bd5 Ng4 13. Nd4 Ne3 14. Bxe3 fxe3 15. Rxf7 Rxf7 16. Bxf7+
Kxf7 17. Qh5+ Kg8 18. Qe8+ Bf8 19. Nd5 Qxd4 20. Ne7+ Kh8
21. Rf1 Qf6 22. Rxf6 gxf6 23. Kg1 Kg7 24. Nf5+ Kg8 25. Nxd6
Kg7 26. Qf7+ Kh8 27. Ne8 h6 28. Nc7 Bc5 29. Kf1 Nf8 1-0
I did a long search on this recently and Rxf7 does appear best but I didn't get a winning score for it.
[d] r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - -
Rxf7 from this game:
[Event "Amsterdam IBM"]
[Site "Amsterdam"]
[Date "1980.??.??"]
[Round "3"]
[Result "1-0"]
[White "John Van der Wiel"]
[Black "Zoltan Ribli"]
[ECO "B93"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5
7. Nf3 Nbd7 8. a4 Be7 9. Bc4 O-O 10. O-O Qb6+ 11. Kh1 exf4
12. Bd5 Ng4 13. Nd4 Ne3 14. Bxe3 fxe3 15. Rxf7 Rxf7 16. Bxf7+
Kxf7 17. Qh5+ Kg8 18. Qe8+ Bf8 19. Nd5 Qxd4 20. Ne7+ Kh8
21. Rf1 Qf6 22. Rxf6 gxf6 23. Kg1 Kg7 24. Nf5+ Kg8 25. Nxd6
Kg7 26. Qf7+ Kh8 27. Ne8 h6 28. Nc7 Bc5 29. Kf1 Nf8 1-0
I did a long search on this recently and Rxf7 does appear best but I didn't get a winning score for it.
-
Omega-three
Re: Test position 19...Bf5
Hi Jon
Rybka 3 latches onto Rxf7 quite quickly with a rising score.
[+2.19] d=22 1.Rxf7 (0:32:02) 387076kN
[+1.99] d=22 1.Rxf7 (0:22:24) 292899kN
[+1.79] d=21 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Nc4 14.Bxc4 Bxc4 15.Rc7 Be2 16.Rc6 (0:11:37) 157502kN
[+1.65] d=20 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Nc4 14.Bxc4 Bxc4 15.Rc7 Bf7 16.Rc6 (0:05:55) 81237kN
[+1.64] d=19 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Bd1 14.c4 Nd3 15.a5 Bc2 16.Kh2 (0:02:23) 32583kN
[+1.55] d=18 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Bd1 (0:00:57) 13972kN
[+1.55] d=17 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 (0:00:34) 8613kN
[+1.55] d=16 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c4 (0:00:25) 6333kN
[+1.55] d=15 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c4 (0:00:15) 3960kN
[+1.54] d=14 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c3 (0:00:05) 1114kN
[+1.60] d=13 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 (0:00:01) 246kN
[+1.60] d=12 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 Rf8 10.h3 (0:00:00) 0kN
[+1.60] d=11 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 Rf8 10.h3 (0:00:00) 0kN
Regards
Mike
Rybka 3 latches onto Rxf7 quite quickly with a rising score.
[+2.19] d=22 1.Rxf7 (0:32:02) 387076kN
[+1.99] d=22 1.Rxf7 (0:22:24) 292899kN
[+1.79] d=21 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Nc4 14.Bxc4 Bxc4 15.Rc7 Be2 16.Rc6 (0:11:37) 157502kN
[+1.65] d=20 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Nc4 14.Bxc4 Bxc4 15.Rc7 Bf7 16.Rc6 (0:05:55) 81237kN
[+1.64] d=19 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Bd1 14.c4 Nd3 15.a5 Bc2 16.Kh2 (0:02:23) 32583kN
[+1.55] d=18 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 13.Re7 Bd1 (0:00:57) 13972kN
[+1.55] d=17 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rf8 11.h3 h5 12.Nc8 Rf6 (0:00:34) 8613kN
[+1.55] d=16 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c4 (0:00:25) 6333kN
[+1.55] d=15 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c4 (0:00:15) 3960kN
[+1.54] d=14 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 g6 10.Rc7 Rd8 11.Kg1 Rd7 12.Rxd7 Nxd7 13.a5 Nf6 14.Kf2 Bd1 15.c3 (0:00:05) 1114kN
[+1.60] d=13 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 (0:00:01) 246kN
[+1.60] d=12 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 Rf8 10.h3 (0:00:00) 0kN
[+1.60] d=11 1.Rxf7 Rxf7 2.Bxf7 Kh8 3.Nd5 Qxb2 4.Nxe7 Ne5 5.Rb1 Bg4 6.Rxb2 Bxd1 7.Bd5 e2 8.Nxe2 Bxe2 9.Rxb7 Rf8 10.h3 (0:00:00) 0kN
Regards
Mike
-
kgburcham
- Posts: 2016
- Joined: Sun Feb 17, 2008 4:19 pm
Re: Test position 19...Bf5
John Van der Wiel - Zoltan Ribli, Amsterdam IBM 1980
[d] r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - - 0 1
Rybka 3:
15.Rxf7
= (0.15 !) Depth: 13 00:00:07 2325kN
15.Rxf7
+/= (0.55 !) Depth: 13 00:00:07 2326kN
15.Rxf7
+/- (1.35 !) Depth: 13 00:00:08 2745kN
15.Rxf7 Rxf7[] 16.Bxf7+[]
+/- (1.39) Depth: 13 00:00:12 3821kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.Kf1 g6 26.e6 Kg7 27.e7 Ne4[] 28.Ne6+ Kf6[] 29.e8Q Rxe8[] 30.Nxe8+
+/- (1.39) Depth: 14 00:00:13 4256kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.Kf1 g6 26.e6 Kg7 27.e7 Ne4[] 28.Ne6+ Kf6[] 29.e8Q Rxe8[] 30.Nxe8+
+/- (1.39) Depth: 15 00:00:16 5026kN
15.Rxf7
+- (1.59 !) Depth: 16 00:00:21 6405kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.Kf1 Rd8 27.Nxb7 Rb8 28.Nc5 Rb4 29.Ncb3
+- (1.44) Depth: 16 00:00:22 6925kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.Kf1 Rd8 27.Nxb7 Rb8 28.Nc5 Rb4 29.Ncb3
+- (1.44) Depth: 17 00:00:28 9069kN
15.Rxf7
+- (1.64 !) Depth: 18 00:00:46 13861kN
15.Rxf7
+- (1.84 !) Depth: 18 00:01:03 17717kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.c4 Nf6 27.e7 a5 28.Bd5 a4 29.Bxb7 Ra5 30.Kf1
+- (1.95) Depth: 18 00:01:23 22974kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.c4 Nf6 27.e7 a5 28.Bd5 a4 29.Bxb7 Ra5 30.Kf1
+- (1.95) Depth: 19 00:01:50 31887kN
15.Rxf7
+- (2.15 !) Depth: 20 00:04:17 73736kN
Deep Fritz 11:
15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2 18.Nxe7 Ne5 19.Rb1 Bg4 20.Rxb2 Bxd1 21.Be6 e2 22.Nxe2 Bxe2 23.Rxb7 Bd1 24.Rc7
+/- (1.22) Depth: 17/38 00:00:12 127mN
15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2 18.Nxe7 Ne5 19.Rb1 Bg4 20.Rxb2 Bxd1 21.Nef5 e2 22.Nxe2 Nxf7 23.Neg3 Ne5 24.Ne3 Bg4 25.Nxg4
+/- (1.33) Depth: 18/35 00:00:13 136mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Nxc8 Rxc8 28.Qxd7 Rxc2 29.Kf1 Rxb2
+/= (0.63) Depth: 19/41 00:00:15 162mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Nxc8 Rxc8 28.Qxd7 Rxc2 29.Kf1
+/= (0.63) Depth: 20/41 00:00:19 209mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5 28.Nxf6
+/- (0.79) Depth: 21/42 00:00:27 292mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5 28.Nxf6
+/- (0.79) Depth: 22/44 00:00:42 472mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5
+/- (0.79) Depth: 23/45 00:01:14 833mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 f5
+/- (1.20) Depth: 24/48 00:02:26 1641mN
[d] r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - - 0 1
Rybka 3:
15.Rxf7
= (0.15 !) Depth: 13 00:00:07 2325kN
15.Rxf7
+/= (0.55 !) Depth: 13 00:00:07 2326kN
15.Rxf7
+/- (1.35 !) Depth: 13 00:00:08 2745kN
15.Rxf7 Rxf7[] 16.Bxf7+[]
+/- (1.39) Depth: 13 00:00:12 3821kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.Kf1 g6 26.e6 Kg7 27.e7 Ne4[] 28.Ne6+ Kf6[] 29.e8Q Rxe8[] 30.Nxe8+
+/- (1.39) Depth: 14 00:00:13 4256kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.Kf1 g6 26.e6 Kg7 27.e7 Ne4[] 28.Ne6+ Kf6[] 29.e8Q Rxe8[] 30.Nxe8+
+/- (1.39) Depth: 15 00:00:16 5026kN
15.Rxf7
+- (1.59 !) Depth: 16 00:00:21 6405kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.Kf1 Rd8 27.Nxb7 Rb8 28.Nc5 Rb4 29.Ncb3
+- (1.44) Depth: 16 00:00:22 6925kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.Kf1 Rd8 27.Nxb7 Rb8 28.Nc5 Rb4 29.Ncb3
+- (1.44) Depth: 17 00:00:28 9069kN
15.Rxf7
+- (1.64 !) Depth: 18 00:00:46 13861kN
15.Rxf7
+- (1.84 !) Depth: 18 00:01:03 17717kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.c4 Nf6 27.e7 a5 28.Bd5 a4 29.Bxb7 Ra5 30.Kf1
+- (1.95) Depth: 18 00:01:23 22974kN
15.Rxf7 Rxf7[] 16.Bxf7+[] Kh8 17.Nd5[] Qxb2 18.Nxe7[] Ne5 19.Nxc8 Ng4 20.Rb1 Nf2+ 21.Kg1 Nxd1 22.Rxb2[] Nxb2 23.Nxd6[] Nxa4 24.e5 Nc3 25.e6 Nd5 26.c4 Nf6 27.e7 a5 28.Bd5 a4 29.Bxb7 Ra5 30.Kf1
+- (1.95) Depth: 19 00:01:50 31887kN
15.Rxf7
+- (2.15 !) Depth: 20 00:04:17 73736kN
Deep Fritz 11:
15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2 18.Nxe7 Ne5 19.Rb1 Bg4 20.Rxb2 Bxd1 21.Be6 e2 22.Nxe2 Bxe2 23.Rxb7 Bd1 24.Rc7
+/- (1.22) Depth: 17/38 00:00:12 127mN
15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2 18.Nxe7 Ne5 19.Rb1 Bg4 20.Rxb2 Bxd1 21.Nef5 e2 22.Nxe2 Nxf7 23.Neg3 Ne5 24.Ne3 Bg4 25.Nxg4
+/- (1.33) Depth: 18/35 00:00:13 136mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Nxc8 Rxc8 28.Qxd7 Rxc2 29.Kf1 Rxb2
+/= (0.63) Depth: 19/41 00:00:15 162mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Nxc8 Rxc8 28.Qxd7 Rxc2 29.Kf1
+/= (0.63) Depth: 20/41 00:00:19 209mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5 28.Nxf6
+/- (0.79) Depth: 21/42 00:00:27 292mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5 28.Nxf6
+/- (0.79) Depth: 22/44 00:00:42 472mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 b5
+/- (0.79) Depth: 23/45 00:01:14 833mN
15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8 18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8 21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7 24.Nf5+ Kg8 25.Nxd6 Kg7 26.Qf7+ Kh8 27.Ne8 f5
+/- (1.20) Depth: 24/48 00:02:26 1641mN
-
Eelco de Groot
- Posts: 4676
- Joined: Sun Mar 12, 2006 2:40 am
- Full name: Eelco de Groot
Re: Test position 19...Bf5
If I change a few numbers, it is solved in 88 minutes, or 9 minutes 14 seconds, mainly depending on the place in the move-list...
One of the guys at my chessclub would call this tombola-chess
somewhat to the chagrin of the people involved -Something like "Let's try this, you never know, oh wait that's mate in one..."-
[d]r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - -
Engine: Ancalagon 1.3 Weak Squares 180 Board Control middlegame 50 endgame 50
Build 300 (Athlon 2009 MHz, 256 MB) by Romstad, Costalba, Kiiski, de Groot
2.00 0:00 -1.75 15.Nf5 Bf6 (7.460) 29
2.00 0:00 -1.75 15.a5 (297.962) 317
3.01 0:09 -1.83 15.a5 Qxb2 16.Qd3 Nc5 17.Qxe3 Bf6
18.Ra2 Qb4 19.Rxf6 gxf6 (4.368.765) 454
3.02 0:10 -1.57 15.Nf5 Bf6 16.Qc1 Bxc3 17.bxc3 (4.750.767) 450
3.37 0:11 -1.55 15.Qd3 Bf6 16.Nce2 Bg5 17.Nf5 (5.433.134) 455
4.01 0:16 -2.02 15.Qd3 Bf6 16.Nce2 Bg5 17.Qb3 Qxb3
18.Nxb3 Nf6 19.Kg1 Nxd5 20.exd5 (7.775.522) 458
4.02 0:17 -0.70 15.Nf5 Bf6 16.Qc1 Bxc3 17.bxc3 e2
18.Re1 Ne5 19.Ne7+ Kh8 20.Rxe2 Bg4 (8.015.644) 459
4.14 0:50 +0.70 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Rxb7 Rd8 22.Nxf6+ Qxf6 23.Qd4 Qxd4
24.Nxd4 Bxa4 (25.778.089) 509
5.01 1:05 +0.34 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Rxb7 Bc6 22.Rb6 Bxd5 23.Qxd5+ Qxd5
24.exd5 Re8 (33.531.675) 513
6.01 1:17 +0.50 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Nxf6+ gxf6 22.Rxb7 Bg4 23.Kg1 Qxe4 (39.380.719) 508
7.01 2:15 +0.73 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 Qa2 19.Nxf6+ Kxf7 20.Ra1 Qc4
21.Nd5 Nf6 22.Nb6 Qc3 23.Ne2 Qe5
24.Nxa8 Nxe4 25.Qd4 Qxd4 26.Nxd4 (69.837.242) 513
7.16 2:30 +1.17 15.Rxf7 (76.528.383) 507
8.01 3:05 +2.35 15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8
18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8
21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7
24.Nf5+ Kg8 25.a5 b5 26.Kf1 Ne5
27.Ne7+ Kg7 28.Nxc8 (97.024.867) 523
9.01 18:11 +2.49 15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2
18.Nxe7 Nc5 19.Qe1 Bg4 20.Nef5 Bxf5
21.Nxf5 Nxe4 22.Nxe3 (501.376.094) 459
10.01 45:42 +2.43 15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 e2
18.Qg1 Qxb2 19.Nxe7 Ne5 20.Bd5 Bg4
21.Rb1 Qc3 22.Bxb7 (1.258.625.845) 459
best move: Rf1xf7 time: 207:26.547 min n/s: 454.610 nodes: 5.658.330.309
One of the guys at my chessclub would call this tombola-chess
somewhat to the chagrin of the people involved -Something like "Let's try this, you never know, oh wait that's mate in one..."-[d]r1b2rk1/1p1nbppp/pq1p4/3B4/P2NP3/2N1p3/1PP3PP/R2Q1R1K w - -
Engine: Ancalagon 1.3 Weak Squares 180 Board Control middlegame 50 endgame 50
Build 300 (Athlon 2009 MHz, 256 MB) by Romstad, Costalba, Kiiski, de Groot
2.00 0:00 -1.75 15.Nf5 Bf6 (7.460) 29
2.00 0:00 -1.75 15.a5 (297.962) 317
3.01 0:09 -1.83 15.a5 Qxb2 16.Qd3 Nc5 17.Qxe3 Bf6
18.Ra2 Qb4 19.Rxf6 gxf6 (4.368.765) 454
3.02 0:10 -1.57 15.Nf5 Bf6 16.Qc1 Bxc3 17.bxc3 (4.750.767) 450
3.37 0:11 -1.55 15.Qd3 Bf6 16.Nce2 Bg5 17.Nf5 (5.433.134) 455
4.01 0:16 -2.02 15.Qd3 Bf6 16.Nce2 Bg5 17.Qb3 Qxb3
18.Nxb3 Nf6 19.Kg1 Nxd5 20.exd5 (7.775.522) 458
4.02 0:17 -0.70 15.Nf5 Bf6 16.Qc1 Bxc3 17.bxc3 e2
18.Re1 Ne5 19.Ne7+ Kh8 20.Rxe2 Bg4 (8.015.644) 459
4.14 0:50 +0.70 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Rxb7 Rd8 22.Nxf6+ Qxf6 23.Qd4 Qxd4
24.Nxd4 Bxa4 (25.778.089) 509
5.01 1:05 +0.34 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Rxb7 Bc6 22.Rb6 Bxd5 23.Qxd5+ Qxd5
24.exd5 Re8 (33.531.675) 513
6.01 1:17 +0.50 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 e2 19.Nxe2 Qe5 20.Rxd7 Bxd7
21.Nxf6+ gxf6 22.Rxb7 Bg4 23.Kg1 Qxe4 (39.380.719) 508
7.01 2:15 +0.73 15.Bxf7+ Rxf7 16.Rxf7 Bf6 17.Nd5 Qxb2
18.Rb1 Qa2 19.Nxf6+ Kxf7 20.Ra1 Qc4
21.Nd5 Nf6 22.Nb6 Qc3 23.Ne2 Qe5
24.Nxa8 Nxe4 25.Qd4 Qxd4 26.Nxd4 (69.837.242) 513
7.16 2:30 +1.17 15.Rxf7 (76.528.383) 507
8.01 3:05 +2.35 15.Rxf7 Rxf7 16.Bxf7+ Kxf7 17.Qh5+ Kg8
18.Qe8+ Bf8 19.Nd5 Qxd4 20.Ne7+ Kh8
21.Rf1 Qf6 22.Rxf6 gxf6 23.Kg1 Kg7
24.Nf5+ Kg8 25.a5 b5 26.Kf1 Ne5
27.Ne7+ Kg7 28.Nxc8 (97.024.867) 523
9.01 18:11 +2.49 15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 Qxb2
18.Nxe7 Nc5 19.Qe1 Bg4 20.Nef5 Bxf5
21.Nxf5 Nxe4 22.Nxe3 (501.376.094) 459
10.01 45:42 +2.43 15.Rxf7 Rxf7 16.Bxf7+ Kh8 17.Nd5 e2
18.Qg1 Qxb2 19.Nxe7 Ne5 20.Bd5 Bg4
21.Rb1 Qc3 22.Bxb7 (1.258.625.845) 459
best move: Rf1xf7 time: 207:26.547 min n/s: 454.610 nodes: 5.658.330.309
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