Testposition: avoid blunder and draw

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

OliverBr
Posts: 865
Joined: Tue Dec 18, 2007 9:38 pm
Location: Munich, Germany
Full name: Dr. Oliver Brausch

Testposition: avoid blunder and draw

Post by OliverBr »

...f3 is a big blunder and black loses. I guess most machines will like it in the first plies. So from when your engines avoids the move and playes Qf6 for draw?

[d]8/PQ3pk1/8/4K2p/5p1q/8/8/8 b - - 0 49

Rybka - OliThink
Top
Allard Siemelink
Posts: 297
Joined: Fri Jun 30, 2006 9:30 pm
Location: Netherlands

Re: Testposition: avoid blunder and draw

Post by Allard Siemelink »

4 seconds for bright:

Code: Select all

  [1/5]     0.000      34       -5  Qh4g5+ Ke5d6 Qg5f6+ Kd6d5
  [1/8]     0.000     101       -5  ok/101.0
  [2/8]     0.000     209       -5  Qh4g5+ Ke5d6 Qg5f6+ Kd6d5
  [2/10]    0.000     742       -5  ok/7.3
  [3/12]    0.000    2615       -2  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5
  [3/12]    0.000    4125       -2  ok/5.6
  [4/12]    0.000    5343       -5  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b2+ Kb5c6 Qb2f6+ Kc6d5
  [4/18]    0.016   10342       -5  ok/2.5
  [5/18]    0.016   14600       -1  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b1+ Kb5c6 Qb1e4+ Kc6c7 Qe4e7+ Kc7c8
  [5/20]    0.032   32363        0  ++4/18 f4f3
  [5/27]    0.032   36912       79  f4f3 a7a8=Q Qh4f6+ Ke5e4 f3f2 Qb7c8 Qf6e7+ Ke4d5 f2f1=Q Qc8h8+ Kg7g6 Qa8g8+ Kg6f5 Qh8xh5+ Kf5f6
  [5/27]    0.032   37072       79  ok/3.6
  [6/27]    0.047   47368       79  f4f3 a7a8=Q Qh4f6+ Ke5e4 f3f2 Qb7c8 Qf6e7+ Ke4d5 f2f1=Q Qc8h8+ Kg7g6 Qa8g8+ Kg6f5 Qh8xh5+ Kf5f6
  [6/27]    0.063   68297       79  ok/1.8
  [7/27]    0.125     141k      89  f4f3 Qb7xf3 Qh4e7+ Ke5f4 Qe7xa7 Qf3xh5 Qa7d4+ Kf4g3 Qd4e3+ Kg3g2
  [7/27]    0.141     174k      89  ok/2.6
  [8/27]    0.188     249k      88  f4f3 Qb7xf3 Qh4e7+ Ke5f4 Qe7xa7 Qf3xh5 Qa7d4+ Kf4g3 Qd4e3+ Kg3g2 Qe3e4+ Kg2g3
  [8/27]    0.266     368k      88  ok/2.1
  [9/29]    0.391     544k      90  f4f3 Qb7xf3 Qh4e7+ Ke5f4 Qe7xa7 Qf3xh5 Qa7d4+ Kf4g3 Qd4d6+ Kg3f2 Qd6f4+ Qh5f3 Qf4h2+ Kf2e3
  [9/29]    0.500     713k      90  ok/1.9
 [10/33]    0.782    1102k      94  f4f3 Qb7xf3 Qh4e7+ Ke5f4 Qe7xa7 Qf3xh5 Qa7d4+ Kf4g3 Qd4d6+ Kg3h3 Qd6e6+ Kh3g3 f7f5 Qh5g5+ Qe6g6
 [10/33]    1.000    1452k      94  ok/2.0
 [11/41]    2.078    2912k    -739  f4f3 a7a8=Q Qh4f6+ Ke5e4 f3f2 Qb7b8 Qf6h4+ Ke4e3 f2f1=N+ Ke3e2 Qh4h2+ Ke2xf1 Qh2xb8 Qa8xb8 h5h4 Qb8e5+ Kg7g6
 [11/44]    2.657    3660k    -738  ++2/18 Qh4e1+
 [11/44]    3.969    5754k     -52  Qh4e1+ Ke5f5 Qe1e6+ Kf5xf4 Qe6c4+ Kf4g3 Qc4g4+ Kg3f2 Qg4d4+ Kf2e2 Qd4c4+ Ke2d2 Qc4d4+ Kd2c2 Qd4c4+ Kc2b1 Qc4d3+ Kb1a2 Qd3c4+ Ka2a3 Qc4d3
+ Qb7b3 Qd3a6+ Qb3a4
 [11/44]    3.985    5770k     -51  ++3/18 Qh4g5+
 [11/44]    4.313    6225k       0  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b1+ Kb5c6 Qb1e4+ Kc6c7 Qe4e7+ Kc7c8 Qe7c5+ Qb7c7 Qc5a3 Qc7b7 Qa3c5+
 [11/44]    4.469    6482k       0  ok/4.5
 [12/44]    5.078    7375k       0  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b1+ Kb5c6 Qb1e4+ Kc6c7 Qe4e7+ Kc7b6 Qe7d8+ Kb6b5 Qd8d3+ Kb5b6 Qd3e3+ Kb6c7 Qe3c5+ Kc7b8 Qc5f8+
 Qb7c8 Qf8b4+ Qc8b7 Qb4f8+
 [12/44]    5.688    8427k       0  ok/1.3
 [13/44]    6.907   10263k       0  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b1+ Kb5c6 Qb1e4+ Kc6c7 Qe4e7+ Kc7c8 Qe7c5+ Qb7c7 Qc5a3 Qc7b7 Qa3c5+
 [13/44]    8.297   12628k       0  ok/1.5
 [14/55]   11.453   17361k       0  Qh4g5+ Ke5d4 Qg5g1+ Kd4c4 Qg1c1+ Kc4b5 Qc1b1+ Kb5c6 Qb1e4+ Kc6c7 Qe4e7+ Kc7b6 Qe7d8+ Qb7c7 Qd8d4+ Kb6b7 Qd4e4+ Qc7c6 Qe4e7+ Qc6c7 Qe7b4+
 Qc7b6 Qb4e7+ Qb6c7
 [14/55]   14.407   22541k       0  ok/stop
Top
Jouni
Posts: 3857
Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Re: Testposition: avoid blunder and draw

Post by Jouni »

Easy: ALL engines I tested except Fritz10 avoid -f3 in about 1-2 sec.

Jouni
Top
Harald Johnsen

Re: Testposition: avoid blunder and draw

Post by Harald Johnsen »

OliverBr wrote:...f3 is a big blunder and black loses. I guess most machines will like it in the first plies. So from when your engines avoids the move and playes Qf6 for draw?

Rybka - OliThink
Detected at depth 9

Code: Select all

FEN: 8/PQ3pk1/8/4K2p/5p1q/8/8/8 b - - 0 49 

Cyrano 0.4beta5:
  1/10	00:00	         710	0	+0,51	Qg5+ Kd4 Qg1+ Kc4 Qf1+ Kd4
  2/13	00:00	       1.467	0	+0,50	Qg5+ Kd4 Qg1+ Kc4 Qf1+ Kd4 Qd1+ Ke5
  3/16	00:00	       3.746	1	+0,48	Qg5+ Kd4 Qg1+ Kc4 Qf1+ Kd4 Qa1+ Kc4 Qc1+ Kd4
  4/19	00:00	      28.370	1	 0,00	Qg5+ Kd4 Qg1+ Ke5 Qg5+
  4/19	00:00	      58.830	1	+1,16	f3 Qxf3 Qe7+ Kf4 Qxa7 Qxh5 Qf2+ Ke4
  5/18	00:00	      70.875	1	+1,18	f3 Qxf3 Qe7+ Kf4 Qxa7 Qxh5 Qd4+ Kg3 Qe3+ Kg4
  6/21	00:00	     118.507	1	+1,20	f3 Qxf3 Qe7+ Kf4 Qxa7 Qxh5 Qd4+ Kg3 Qe3+ Kg2
  7/22	00:00	     198.060	1	+1,20	f3 Qxf3 Qe7+ Kf4 Qxa7 Qxh5 Qd4+ Kg3 Qe3+ Kg2
  8/24	00:00	     380.989	1	+1,20	f3 Qxf3 Qe7+ Kf4 Qxa7 Qxh5 Qd4+ Kg3 Qe3+ Kg2 Qf4
  9/31	00:01	     871.552	760.787	-5,17	f3 a8Q Qf6+ Ke4 f2 Qbb8 Qe6+ Kd4 Qg4+ Ke3 f1N+ Kf2 Qd4+ Kxf1 Qd3+ Kg2
  9/31+	00:01	     948.974	760.787	-5,15	Qe1+ Kxf4
  9/31	00:01	   1.047.727	760.787	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 10/28	00:01	   1.340.329	760.787	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 11/30	00:02	   1.910.377	774.205	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 12/43	00:04	   3.294.884	789.991	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 13/34	00:06	   5.374.896	782.759	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 14/38	00:11	   9.247.665	787.232	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 15/43	00:21	  17.315.783	793.743	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 16/42	00:39	  30.940.907	793.781	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
 17/49	01:13	  58.344.308	791.666	 0,00	Qe1+ Kxf4 Qh4+ Ke5 Qg5+ Kd6 Qf4+ Kd7 Qf5+ Ke8 Qe5+ Kd8 Qd6+ Ke8 Qe5+
HJ.
Top

Return to “Computer Chess Club: General Topics”