Test Position: Rxe6!!!

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swami
Posts: 6664
Joined: Thu Mar 09, 2006 4:21 am

Test Position: Rxe6!!!

Post by swami »

[d] 2r3k1/5pp1/3Rb2p/6r1/3pPQ2/2qB3P/2P3PK/5R2 w - - 0 37

It took around 3 minutes and depth 16 for Spike.

Code: Select all

2r3k1/5pp1/3Rb2p/6r1/3pPQ2/2qB3P/2P3PK/5R2 w - - 0 1

Analysis by Spike 1.2 Turin:

1. +-  (4.07): 37.Rxe6 fxe6 38.h4 Qc7 39.hxg5 Qxf4+ 40.Rxf4 hxg5 41.Rg4 Rc5 42.e5 Rxe5 43.Rxd4 Rd5 44.Rxd5 exd5 45.Kg3 Kf7 
2. ±  (1.01): 37.e5 Qc5 38.Re1 Re8 39.h4 Rh5 40.Qxd4 Qa5 41.Re2 Kf8 42.Ra6 Qc7 43.Qb4+ Kg8 44.Qf4
How much time did it take for your engine to find the right move?
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ernest
Posts: 2053
Joined: Wed Mar 08, 2006 8:30 pm

Re: Test Position: Rxe6!!!

Post by ernest »

Rybka almost immediately (E6600 @3GHz, 2 cores):

Engine: Rybka 2.3.2a mp 32-bit (512 MB) by Vasik Rajlich
11.00 0:03 0.00 1.Rb1 Bc4 2.Rf1 Be6 (554.024) 180
11.02 0:03 +0.13 1.e5 Qc5 2.Re1 Bd5 3.g4 Qa5 4.Re2 Be6 (654.361) 174
12.01 0:04 +0.14 1.e5 Qc5 2.Re1 Bd5 3.g4 Qa5 4.Re2 Be6 5.Qxd4 (778.078) 172
13.01 0:09 +0.40 1.e5 Qc5 2.Re1 Kf8 3.Re2 Re8 4.Qxd4 Qxd4 5.Rxd4 Ra8 6.Rb4 Ra2 (1.703.271) 178
13.04 0:10 +2.56 1.Rxe6 fxe6 2.h4 Ra5 3.Qf7+ Kh8 4.e5 (1.817.867) 177
13.01 0:11 +2.52 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (1.945.190) 180
14.01 0:11 +2.57 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.037.768) 176
15.01 0:12 +2.70 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.162.560) 172
16.01 0:14 +2.66 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.325.544) 169
17.01 0:20 +3.01 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (3.289.162) 163
18.01 0:28 +3.02 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (4.179.706) 152
19.01 0:34 +3.02 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (5.080.748) 149
20.01 0:46 +3.01 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (6.708.731) 146
best move: Rd6xe6 time: 1:00.953 min n/s: 148.220 nodes: 8.793.526
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swami
Posts: 6664
Joined: Thu Mar 09, 2006 4:21 am

Re: Test Position: Rxe6!!!

Post by swami »

ernest wrote:Rybka almost immediately (E6600 @3GHz, 2 cores):

Engine: Rybka 2.3.2a mp 32-bit (512 MB) by Vasik Rajlich
11.00 0:03 0.00 1.Rb1 Bc4 2.Rf1 Be6 (554.024) 180
11.02 0:03 +0.13 1.e5 Qc5 2.Re1 Bd5 3.g4 Qa5 4.Re2 Be6 (654.361) 174
12.01 0:04 +0.14 1.e5 Qc5 2.Re1 Bd5 3.g4 Qa5 4.Re2 Be6 5.Qxd4 (778.078) 172
13.01 0:09 +0.40 1.e5 Qc5 2.Re1 Kf8 3.Re2 Re8 4.Qxd4 Qxd4 5.Rxd4 Ra8 6.Rb4 Ra2 (1.703.271) 178
13.04 0:10 +2.56 1.Rxe6 fxe6 2.h4 Ra5 3.Qf7+ Kh8 4.e5 (1.817.867) 177
13.01 0:11 +2.52 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (1.945.190) 180
14.01 0:11 +2.57 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.037.768) 176
15.01 0:12 +2.70 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.162.560) 172
16.01 0:14 +2.66 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rg4 Rc5 6.e5 Rxe5 7.Rxd4 Kf7 (2.325.544) 169
17.01 0:20 +3.01 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (3.289.162) 163
18.01 0:28 +3.02 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (4.179.706) 152
19.01 0:34 +3.02 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (5.080.748) 149
20.01 0:46 +3.01 1.Rxe6 fxe6 2.h4 Qc7 3.hxg5 Qxf4+ 4.Rxf4 hxg5 5.Rf1 e5 6.Kg3 Kh7 7.Kg4 Kg6 (6.708.731) 146
best move: Rd6xe6 time: 1:00.953 min n/s: 148.220 nodes: 8.793.526
so that's 10 seconds...great.

would be interested in knowing how much time other engines spend before they find Rxe6.
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bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Test Position: Rxe6!!!

Post by bob »

46 seconds for crafty on my laptop:

Code: Select all

15 46.74 +1 1. Rxe6!! (4.7Mnps)
15 47.26 +3 1. Rxe6!! (4.7Mnps)
15 49.01 3.29 1. Rxe6 fxe6 2. h4 Qc7 3. hxg5 hxg5
4. Qxc7 Rxc7 5. Kh3 Rc6 6. Kg4 Rc5
7. Rf2 g6 8. Kf3
15-> 49.32 3.29 1. Rxe6 fxe6 2. h4 Qc7 3. hxg5 hxg5
4. Qxc7 Rxc7 5. Kh3 Rc6 6. Kg4 Rc5
7. Rf2 g6 8. Kf3 (s=3)
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Martin Thoresen
Posts: 1833
Joined: Thu Jun 22, 2006 12:07 am

Re: Test Position: Rxe6!!!

Post by Martin Thoresen »

2r3k1/5pp1/3Rb2p/6r1/3pPQ2/2qB3P/2P3PK/5R2 w - - 0 1

Analysis by Bright 0.3b 4CPU (Q6600 @ 3.4 Ghz - 4 Cores)

1 second.

37.Ba6
³ (-0.60) Depth: 1/4 00:00:00
37.Rb6
³ (-0.29) Depth: 1/4 00:00:00
37.Rb1
= (-0.18) Depth: 1/4 00:00:00
37.e5
= (0.16) Depth: 1/4 00:00:00
37.e5 Qa5 38.Be4 Rxe5 39.Rxd4
= (0.00) Depth: 2/9 00:00:00
37.Qf2 Re5 38.Qxd4
² (0.36) Depth: 2/13 00:00:00
37.Qf2 Re5 38.Qxd4
² (0.36) Depth: 3/13 00:00:00
37.Qf2 Kh7 38.Qxd4 Qd2 39.e5+ g6
² (0.31) Depth: 4/13 00:00:00
37.Qf2 Kh7 38.Qxd4 Qd2 39.e5+ g6
² (0.31) Depth: 5/13 00:00:00
37.Qf2 Qc7 38.Qf4 Qa7 39.e5 Qb7
= (-0.09) Depth: 6/18 00:00:00 52kN
37.e5 Qc5 38.Qxd4 Qxe5+ 39.Qxe5 Rxe5 40.Kg3
= (0.05) Depth: 6/18 00:00:00 84kN
37.Rb1 Bc4 38.Rb7 f6 39.Bxc4+ Qxc4 40.Qd2
= (0.13) Depth: 6/22 00:00:00 138kN
37.Rb1 Bc4 38.Rb7 f6 39.Bxc4+ Qxc4 40.Qd2 Kh7 41.Rxd4 Qxc2
= (0.09) Depth: 7/26 00:00:00 183kN
37.Rb1 Bc4 38.Rb7 Bxd3 39.Qxf7+ Kh7 40.cxd3 Qxd3 41.Qf4
= (0.17) Depth: 8/26 00:00:00 508kN
37.Rb1 Bc4 38.Rb7 Bxd3 39.cxd3 Qxd3 40.Qxf7+ Kh7 41.Qf4 Rf8 42.Rxd4 Rxf4 43.Rxd3 Rxe4
= (0.02) Depth: 9/28 00:00:01 771kN
37.e5 Qc5 38.Rxd4 Rxe5 39.Rb1 Qc7 40.c4 Rb8 41.Rb5
= (0.07) Depth: 9/28 00:00:01 1296kN
37.Rb6 Ra5 38.Rb7 Qc5 39.Rfb1 Rca8 40.Rb8+ Rxb8 41.Rxb8+ Kh7 42.e5+ g6
= (0.10) Depth: 9/28 00:00:01 2598kN
37.Rb6 Ba2 38.Rb7 Be6 39.Rd1 Bc4 40.Bxc4 Qxc4 41.Qf3 Ra5 42.Rdb1
= (0.09) Depth: 10/40 00:00:01 4988kN
37.Rb6 Ba2 38.Rb7 Be6 39.Rd1 Bc4 40.Bxc4 Qxc4 41.Rd2 Ra5 42.e5 Qe6 43.Rxd4 Rxe5
= (0.11) Depth: 11/40 00:00:01 8773kN
37.Rxe6 fxe6 38.h4 Qc7 39.Qxc7 Rxg2+ 40.Kxg2 Rxc7 41.e5 Rc5 42.Rf4 g5 43.Rxd4 Rxe5
+- (2.93) Depth: 11/40 00:00:01 11028kN
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ernest
Posts: 2053
Joined: Wed Mar 08, 2006 8:30 pm

Re: Test Position: Rxe6!!!

Post by ernest »

Martin T wrote:Bright 0.3b
What is 0.3b ? :)

My 0.3a (2 cores) sometimes takes 1 second, sometimes 2 seconds...
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Martin Thoresen
Posts: 1833
Joined: Thu Jun 22, 2006 12:07 am

Re: Test Position: Rxe6!!!

Post by Martin Thoresen »

ernest wrote:
Martin T wrote:Bright 0.3b
What is 0.3b ? :)
Bright 0.3b is ..... Bright 0.3b. :)

It's private for now.
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User avatar
Dr.Wael Deeb
Posts: 9773
Joined: Wed Mar 08, 2006 8:44 pm
Location: Amman,Jordan

Re: Test Position: Rxe6!!!

Post by Dr.Wael Deeb »

Martin T wrote:
ernest wrote:
Martin T wrote:Bright 0.3b
What is 0.3b ? :)
Bright 0.3b is ..... Bright 0.3b. :)

It's private for now.
I've always said that Martin T is a VIP personality :P


:wink:
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
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Will Singleton
Posts: 128
Joined: Thu Mar 09, 2006 5:14 pm
Location: Los Angeles, CA

Re: Test Position: Rxe6!!!

Post by Will Singleton »

Interesting. On my computer, an old amd 4200+, Spike 1.1 gets it in about 40 secs. Almost every engine I tried takes less than a minute.

Will
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sorcerers_apprentice

Re: Test Position: Rxe6!!!

Post by sorcerers_apprentice »

Hi everyone,

Sorry for the Spanish names in the notation ( T = Rook, A = Bishop, D = Queen, R = King )

HIARCS 11.2 SP UCI 256 MB hash finds the move instantly

Code: Select all

 11/27	 0:01 	+2.79 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 hxg5 4.Dxc7 Txc7 5.Tb1 e5 6.Tb5 Te7 7.Ac4+ Rh8 8.Tb8+ Rh7 (438.227) 326
 12/27	 0:02 	+2.95 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 hxg5 4.Dxc7 Txc7 5.e5 Tc8 6.Te1 Rf7 7.Rg3 (740.497) 348
 13/29	 0:03 	+3.07 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 Dxf4+ 4.Txf4 hxg5 5.Tg4 Tc5 6.e5 Txe5 7.Txd4 Td5 8.Txd5 exd5 (1.249.507) 367
 14/31	 0:05 	+3.03 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 Dxf4+ 4.Txf4 hxg5 5.Tg4 e5 6.Txg5 Tc5 7.Rg3 Rh7 8.Tf5 Rg8 (2.266.074) 378
 15/33	 0:11 	+3.09 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 Dxf4+ 4.Txf4 hxg5 5.Tg4 e5 6.Txg5 Tc5 7.Rg1 Rh7 8.Tf5 Ta5 9.Th5+ Rg6 10.Ae2 (4.410.663) 380
 16/38	 0:23 	+3.09 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 hxg5 4.Dxc7 (8.707.924) 376
 17/39	 0:45 	+3.10 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 Dxf4+ 4.Txf4 (17.099.023) 375
mejor jugada: Td6xe6 tiempo: 1:21.011 min  n/s: 368.040  nodos: 29.730.180

My old, trusty Shredder Classic 1.3 (single-processor) 256 MB hash takes 5 seconds:

Code: Select all


  9/19	 0:01 	+0.35 	1.e5 Dc5 2.Dxd4 Dxd4 3.Txd4 Txe5 4.Rg3 Tg5+ 5.Rf2 Ad5 (974.664) 578
 10/21	 0:04 	+0.43 	1.e5 Dc5 2.Dxd4 Dxd4 3.Txd4 Txe5 4.c4 Te3 5.Tc1 Te8 (2.776.859) 618
 10/22	 0:05 	+0.44++	1.Txe6 (3.732.880) 624
 10/22	 0:06 	+0.79++	1.Txe6 (3.878.778) 629
 10/22	 0:06 	+3.41 	1.Txe6 fxe6 2.h4 Txg2+ 3.Rxg2 Dc6 4.Rg1 Rh8 5.e5 Dc5 6.Dg3 (4.306.117) 631
 11/26	 0:08 	+3.46 	1.Txe6 fxe6 2.h4 Txg2+ 3.Rxg2 Dc6 4.Df7+ Rh8 5.Dg6 Dd6 6.Tf7 De5 7.Rh1 (5.243.119) 642
 12/26	 0:12 	+3.71++	1.Txe6 fxe6 (8.044.734) 660
 12/26	 0:15 	+4.21++	1.Txe6 fxe6 (10.329.615) 662
 12/26	 0:16 	+4.21 	1.Txe6 fxe6 2.h4 Txg2+ 3.Rxg2 Dc6 4.Df7+ Rh8 5.Dg6 Tg8 (10.646.202) 665
 13/25	 0:29 	+4.42 	1.Txe6 fxe6 2.h4 Txg2+ 3.Rxg2 Dc6 4.Df7+ Rh8 5.Dg6 Ta8 6.Tf7 Tg8 7.Rh1 Dc3 8.h5 e5 (18.967.548) 653
 14/28	 0:59 	+4.53 	1.Txe6 fxe6 2.h4 Dc7 3.hxg5 hxg5 4.Dxc7 Txc7 5.Rg3 Tf7 6.Th1 (39.529.481) 667
mejor jugada: Td6xe6 tiempo: 1:27.938 min  n/s: 675.518  CPU 98.5%   n/s(1CPU): 685.805  nodos: 59.372.009
Cheers
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