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Subject: Re: GM Suba sets a trap, several top engines fall straight in...

Author: Dann Corbit

Date: 13:55:37 05/26/99

Go up one level in this thread

Crafty 16.7 on a PII 300 was fooled by g4 until ply 10.
At two minutes crafty switched to Nc6, at four minutes to Bxd5, and at 6:46 to
Bd4:

pondering enabled.
EGTB cache memory = 16M bytes.
hash table memory = 48M bytes.
pawn hash table memory = 8M bytes.
play best book line after search.
EGTB access enabled
using tbpath=e:/crafty/release/tb,F:/KBP
4 piece tablebase files found
3442kb of RAM used for TB indices and decompression tables
PFGA: EPD record: 1   ID: Suba - trap
middle-game phase
              clearing hash tables
              time surplus   0.00  time limit 12:30 (12:30)
          s   depth   time  score   variation (1)
White(1): exit

                5     0.17   1.69   1. g4 Bxg2 2. Kxg2 Nxf4+ 3. Qxf4 Rxa2
                                    4. Qd4
                5->   0.24   1.69   1. g4 Bxg2 2. Kxg2 Nxf4+ 3. Qxf4 Rxa2
                                    4. Qd4
                6     0.54   1.53   1. g4 Bxg2 2. Kxg2 Nxf4+ 3. Qxf4 Rxa2
                                    4. Rd2 Kf8
                6->   0.69   1.53   1. g4 Bxg2 2. Kxg2 Nxf4+ 3. Qxf4 Rxa2
                                    4. Rd2 Kf8
                7     1.55   1.64   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Nxg4+
                                    4. hxg4 Rxb2 5. Qxf7+
                7->   2.42   1.64   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Nxg4+
                                    4. hxg4 Rxb2 5. Qxf7+
                8     3.68   1.26   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Rxb2
                                    4. Rxb2 Nxg4+ 5. hxg4 Qxe5 6. Qxe5
                                    Bxe5+
                8->   7.45   1.26   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Rxb2
                                    4. Rxb2 Nxg4+ 5. hxg4 Qxe5 6. Qxe5
                                    Bxe5+
                9    11.51   1.26   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Rxb2
                                    4. Rxb2 Nxg4+ 5. hxg4 Qxe5 6. Qxe5
                                    Bxe5+
                9->  23.85   1.26   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rc2 Rxb2
                                    4. Rxb2 Nxg4+ 5. hxg4 Qxe5 6. Qxe5
                                    Bxe5+
               10    27.96     --   1. g4
               10    39.87  -0.59   1. g4 Nxf4 2. Qxf4 Rxa2 3. Rxd5 exd5
                                    4. Bd4 Nxg4+ 5. Qxg4 Bxe5+ 6. Kg1 Rd2
               10     1:56  -0.52   1. Nc6 Qb6 2. Bxf6 Nxf6 3. Ne5 Bxg2
                                    4. Kxg2 Nd5 5. Kg1 Qd6 6. Ne4 Qe7
               10     4:00  -0.30   1. Bxd5 Nxd5 2. Ned7 Qa7 3. Bxg7 Kxg7
                                    4. Rd2 Kg8 5. Rc4 Red8 6. g4 Ng7
               10     6:46  -0.21   1. Bd4 Bxg2 2. Kxg2 Nd5 3. Kg1 Nhf6
                                    4. Ned3 Rd8 5. Rc4 Qb5 6. Ne5
               10->   7:21  -0.21   1. Bd4 Bxg2 2. Kxg2 Nd5 3. Kg1 Nhf6
                                    4. Ned3 Rd8 5. Rc4 Qb5 6. Ne5
         (3)   11    10:16  -0.28   1. Bd4 Bxg2 2. Qxg2 Qb5 3. Kg1 Nd5
                                    4. Ne4 Bf8 5. Rd2 f6 6. Ng4 Bg7
              time=12:30  cpu=99%  mat=0  n=89385980  fh=90%  nps=119057
              ext-> checks=1587370 recaps=408636 pawns=12820 1rep=86141
thrt:1511
              predicted=0  nodes=89385980  evals=20837127
              endgame tablebase-> probes done=0  successful=0
              SMP->  split=0  stop=0  data=0/64  cpu=12:30  elap=12:30

Crafty v16.7 (1 cpus)

White(1): quit
execution complete.

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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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