Test position Nxc5

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Michel
Posts: 2272
Joined: Mon Sep 29, 2008 1:50 am

Re: Test position Nxc5

Post by Michel »

On the same computer stock GnuChess 5.07 needs 43 seconds to settle on it.

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GNU Chess 5.07
Adjusting HashSize to 1024 slots
Transposition table:  Entries=1K Size=48K
Pawn hash table: Entries=0K Size=32K
White (1) : hashsize 1048576
Adjusting HashSize to 1048576 slots
Transposition table:  Entries=1024K Size=49152K
Pawn hash table: Entries=0K Size=32K
White (1) : easy
White (1) : force
White (1) : setboard 2r2k2/r3bp2/1n2p1p1/p1p1P1Pp/PpP1NP1P/1P1RBK2/8/3R4 w - - 0 1
White (1) : analyze
Root = 159, Phase = 4 
Time = 5.00, Max = 20.00, Left = 0.00, Moves = 0
Ply   Time     Eval      Nodes   Principal-Variation
 1.   0.00    155        40      R1d2
 2&   0.00    153       807    W Kg3 Kg7 : 
 2.   0.00    153       861      Kg3 Kg7
 3&   0.00    164      1131      Kg3 Kg7 R3d2
 3.   0.00    164      1675      Kg3 Kg7 R3d2
 4&   0.00    149      3555      Kg3 Kg7 R3d2 Raa8
 4&   0.00    156      5731      Nd6 Rc6 Nb5 Ra8
 4.   0.00    156      6460      Nd6 Rc6 Nb5 Ra8
 5&   0.01    162     10899      Nd6 Bxd6 Rxd6 Rb7 Ke4 Kg7
 5.   0.01    162     17466      Nd6 Bxd6 Rxd6 Rb7 Ke4 Kg7
 6&   0.02    139     38607      Nd6 Rc6 Bc1 Rd7 Kg3 Rcc7
 6.   0.07    139    131459      Nd6 Rc6 Bc1 Rd7 Kg3 Rcc7
 7&   0.10    139    169386      Nd6 Rc6 R3d2 Rd7 Bg1 Kg8 Bh2
 7.   0.21    139    374378      Nd6 Rc6 R3d2 Rd7 Bg1 Kg8 Bh2
 8&   0.35    134    656527      Nd6 Rc6 Bc1 Ra8 Bb2 Kg7 Kg3 Rh8
 8&   0.64    138   1246840      Kg3 Kg7 Nd6 Rc6 Ne8+ Kf8 Nf6 Bxf6 gxf6 Ke8
 8.   0.70    138   1363076      Kg3 Kg7 Nd6 Rc6 Ne8+ Kf8 Nf6 Bxf6 gxf6 Ke8
 9&   1.36    132   2555380      Kg3 Rac7 Rd6 Rc6 R6d2 Kg7 Nd6 Rh8 Rd3
 9&   2.78    140   5534476      Nd6 Rc6 R3d2 Ra8 Kg3 Ra6 Nb7 Kg7 Bg1
 9.   2.88    140   5738709      Nd6 Rc6 R3d2 Ra8 Kg3 Ra6 Nb7 Kg7 Bg1
10&   3.43    128   6824679      Nd6 Rc6 R3d2 Ra8 Kf2 Kg7 Kg3 Rh8 Nb7 Ra8
10&   5.29    129  10108525      R3d2 Kg7 Nd6 Rc6 Ne8+ Kh8 Nf6 Rc8 Nd7 Nxd7
				 Rxd7 Rd8 Rxa7 Bf8
10&   5.87    137  11371978      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Ra6 Rb7 Bf8 Bxc5 Bxc5
				 Rc7
10.   6.50    137  12634990      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Ra6 Rb7 Bf8 Bxc5 Bxc5
				 Rc7
11&   6.84    125  13362330      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Ra6 Rb7 Bf8 Bxc5 Bxc5
				 Rc7 Bf8
11&   9.99    126  20067686      Bc1 Raa8 Nd6 Rc6 Kg3 Kg7 Be3 Rf8 Bg1 Bxd6
				 exd6 f6 gxf6+ Rxf6
11&  17.47    127  35582664      Kg3 Rac7 R3d2 Kg7 Kf3 Rc6 Nd6 Rb8 Rc1 Ra8
				 Kg3 Rh8
11&  23.96    132  49053173      R3d2 Kg7 Nd6 Rc6 Ke4 Ra8 Bg1 Kg8 Bf2 Bxd6
11.  25.16    132  51623082      R3d2 Kg7 Nd6 Rc6 Ke4 Ra8 Bg1 Kg8 Bf2
12&  28.85    126  59053642      R3d2 Kg7 Nd6 Rc6 Kg3 Ra8 Bg1 Rf8 Rd3 Ra8 R1d2
				 Rh8
12+  43.39    207  89531530      Nxc5
12&  43.85    217  90431914      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Nxc4 bxc4 Rac7 Bxc5
				 Bxc5 Rbd8 Bb6 R1d6
12.  43.85    217  90431946      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Nxc4 bxc4 Rac7 Bxc5
				 Bxc5 Rbd8 Bb6 R1d6
13&  46.66    197  96601109      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Nd7 Re8 Rcc7 Bxa7
				 Rxa7 Rxe7
13.  52.03    197 109478890      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Nd7 Re8 Rcc7 Bxa7
				 Rxa7 Rxe7
14&  63.00    223 135630356      Nxc5 Rxc5 Rd8+ Kg7 Rb8 Nd7 Re8 Rcc7 Bxa7
				 Rxa7 Rxe7 Nxe5+ fxe5 Rxe7
14.          3/33      Rd8+
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Will Singleton
Posts: 128
Joined: Thu Mar 09, 2006 5:14 pm
Location: Los Angeles, CA

Re: Test position Nxc5

Post by Will Singleton »

Amateur gets it in 8 sec, but it's not really enthusiastic about it:

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17 124 685 7837144 Nd6 Rc6 Rd2 Rd7 Nb5 Rxd2 Rxd2 Kg8 Nd6 Rc7 Ke4 Kf8 Rd1 Kg8 Bf2 Kf8 
17 157 836 9473555 Nxc5 Rxc5 Rd8 Kg7 Rb8 Nd7 Re8 Rc7 Bxa7 Rxa7 Rxe7 Nxe5 Ke4 Rxe7 Kxe5 Kf8 Rd8 Kg7 c5 
18 154 1348 15330523 Nxc5 Rxc5 Rd8 Kg7 Rb8 Nd7 Re8 Rc7 Bxa7 Rxa7 Rxe7 Nxe5 Ke4 Rxe7 Kxe5 Rc7 Kd6 
19 171 2325 26492357 Nxc5 Rxc5 Rd8 Kg7 Rb8 Nd7 Re8 Rc7 Bxa7 Rxa7 Rxe7 Nxe5 Ke4 Rxe7 Kxe5 Rc7 Kd6 Rc8 Ke7 Rc6 Rd7 Rc8
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