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Subject: Re: OT -> if you had the choice...

Author: Eugene Nalimov

Date: 13:41:51 11/05/03

Go up one level in this thread


On November 05, 2003 at 09:54:13, Robert Hyatt wrote:

>On November 05, 2003 at 05:22:16, Ed Schröder wrote:
>
>>If you the choice between:
>>
>>1) AMD Opteron 244, 1.8 Ghz, S-940 Box
>>
>>and:
>>
>>2) AMD MP 2600+, 266Mhz
>>
>>then what would be the best choice regarding speed.
>>
>>I wonder...
>>
>>Ed
>
>for me, I'd take the opteron.
>
>Crafty gets about 2M nps on a 1.8ghz opteron...  single processor.

Not exactly. Following are 2 log files from (new version of) Crafty running on
1.8GHz quad Opteron system. Run time vary from run to run, but those are typical
ones

1 CPU:  1,762knps
4 CPUs: 6,856knps

I believe right now you can buy better Opteron system -- 2.2GHz (vs. 1.8GHz I
have), and 400MHz memory (vs. 266MHz one I have).

Thanks,
Eugene

----------------------------------------------------------------------

Crafty v19.5 (1 cpus)

White(1): hashp 1m
pawn hash table memory =  768K bytes.
White(1): hashp 8m
pawn hash table memory =    6M bytes.
White(1): bench
Running benchmark. . .

       +---+---+---+---+---+---+---+---+
    8  |   |   |   | *R|   | *K|   |   |
       +---+---+---+---+---+---+---+---+
    7  |   |   |   |   | *N| *P| *P|   |
       +---+---+---+---+---+---+---+---+
    6  |   | *P| *P| *R|   |   |   | *P|
       +---+---+---+---+---+---+---+---+
    5  | *P|   |   |   |   |   |   | P |
       +---+---+---+---+---+---+---+---+
    4  | P |   |   | P | P | P | P |   |
       +---+---+---+---+---+---+---+---+
    3  |   | N | R |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  |   |   |   |   |   | K |   |   |
       +---+---+---+---+---+---+---+---+
    1  |   |   | R |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

end-game phase
              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                9     0.15   0.17   e5 Rd5 g5 hxg5 fxg5 b5 h6 bxa4 h7 Ng6
                                    Na1 Rxd4 Rxc6
                9     0.87   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
                                    cxb5 Rc7
                9->   0.87   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
                                    cxb5 Rc7
               10     1.40   0.22   R3c2 Ke8 e5 Rd5 g5 b5 gxh6 gxh6 Ra1
                                    b4 Rg1
               10     2.15   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
               10->   2.15   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
               11     2.42   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
               11->   2.53   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
              time=2.55  cpu=99%  mat=0  n=4214380  fh=89%  nps=1652k
              ext-> chk=37528 cap=11825 pp=6530 1rep=1524 mate=302
              predicted=0  nodes=4214380  evals=2199854
              endgame tablebase-> probes=0  hits=0
              hashing-> 29%(raw) 27%(depth)  97%(sat)  96%(pawn)
              hashing-> 0%(exact)  19%(lower)  0%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=2.53  elap=2.55

       +---+---+---+---+---+---+---+---+
    8  | *R| *N| *B| *Q| *K| *B|   | *R|
       +---+---+---+---+---+---+---+---+
    7  | *P|   |   |   | *P| *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   | *P|   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   | *P| *P| P |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  |   |   |   | N |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | P |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  | P | P | P |   | Q | P | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   | B |   | K | B |   | R |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                6->   0.07   0.73   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7
                7     0.12   0.69   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7 Qf4+
                                    Bf6
                7->   0.12   0.69   e6 a6 Qh5 g6 exf7+ Kxf7 Qe5 Bg7 Qf4+
                                    Bf6
                8     0.31   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
                                    Ne5 Qf4
                8->   0.39   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
                                    Ne5 Qf4
                9     1.06   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
                9->   1.21   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
               10     3.42   0.75   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 e6 Be2
                                    Qf6 Bf4 g5 Bc7 Qxf3 Bxf3
               10->   4.10   0.75   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 e6 Be2
                                    Qf6 Bf4 g5 Bc7 Qxf3 Bxf3
               11     8.89   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
                                    e5 Qe3 Kg8 Kb1
               11->  10.81   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
                                    e5 Qe3 Kg8 Kb1
              time=10.82  cpu=99%  mat=0  n=19318652  fh=93%  nps=1785k
              ext-> chk=859225 cap=51584 pp=22437 1rep=61757 mate=1132
              predicted=0  nodes=19318652  evals=2713366
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
              hashing-> 0%(exact)  15%(lower)  1%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=10.81  elap=10.82

       +---+---+---+---+---+---+---+---+
    8  |   |   |   |   | *B|   |   |   |
       +---+---+---+---+---+---+---+---+
    7  | *P|   |   |   | *K| *P|   |   |
       +---+---+---+---+---+---+---+---+
    6  |   |   |   |   |   |   | *P|   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   | *P| P |   |   | *P|
       +---+---+---+---+---+---+---+---+
    4  |   |   | *P| P |   | P |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   |   |   | K |   | P |   |
       +---+---+---+---+---+---+---+---+
    2  | P |   |   |   | N |   |   | P |
       +---+---+---+---+---+---+---+---+
    1  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

end-game phase
              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                9     0.08   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
                                    g4
                9->   0.08   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
                                    g4
               10     0.16   0.52   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 Ke6 Kd2
                                    Bb5
               10->   0.19   0.52   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 Ke6 Kd2
                                    Bb5
               11     0.39   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
                                    Kc3
               11->   0.44   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
                                    Kc3
               12     0.89   0.63   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 a4 Kd2
                                    a3 Kc3 Ke6
               12->   1.07   0.63   f5 gxf5 Nf4 Bc6 Nxh5 a5 Nf6 a4 Kd2
                                    a3 Kc3 Ke6
               13     2.75   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
               13->   3.16   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
               14     7.00   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
                                    Nxd5+ Kd8 Nf6 Bg6 d5
               14->   9.05   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
                                    Nxd5+ Kd8 Nf6 Bg6 d5
              time=9.05  cpu=100%  mat=0  n=18270314  fh=90%  nps=2018k
              ext-> chk=593001 cap=66207 pp=119154 1rep=12311 mate=279
              predicted=0  nodes=18270314  evals=7340957
              endgame tablebase-> probes=0  hits=0
              hashing-> 33%(raw) 32%(depth)  99%(sat)  95%(pawn)
              hashing-> 0%(exact)  27%(lower)  2%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=9.05  elap=9.05

       +---+---+---+---+---+---+---+---+
    8  | *R|   |   |   | *R|   | *K|   |
       +---+---+---+---+---+---+---+---+
    7  | *P| *P| *Q| *B|   | *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   |   | *P|   | N | Q |
       +---+---+---+---+---+---+---+---+
    4  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | P |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  | P | P |   |   |   | P | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   |   | R |   | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                7     0.09   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
                7->   0.11   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
                8     0.27   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
                                    Qxe4
                8->   0.31   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
                                    Qxe4
                9     0.55   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
                                    b3
                9->   0.66   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
                                    b3
               10     2.45   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
                                    Rxd8 Rxd8
               10->   2.83   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
                                    Rxd8 Rxd8
               11     6.23   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
                                    Rxd8 Rxd8 b3
               11->   7.98   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
                                    Rxd8 Rxd8 b3
              time=7.98  cpu=100%  mat=0  n=16081237  fh=91%  nps=2015k
              ext-> chk=341966 cap=49424 pp=626 1rep=48769 mate=5694
              predicted=0  nodes=16081237  evals=3312913
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 20%(depth)  99%(sat)  98%(pawn)
              hashing-> 0%(exact)  16%(lower)  0%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=7.98  elap=7.98

       +---+---+---+---+---+---+---+---+
    8  |   |   | *R|   |   | *R| *K|   |
       +---+---+---+---+---+---+---+---+
    7  |   | *B| *Q| *N| *B| *P| *P|   |
       +---+---+---+---+---+---+---+---+
    6  |   | *P|   | *P| *P| *N|   | *P|
       +---+---+---+---+---+---+---+---+
    5  | *P| P |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  | N |   | P |   | P |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  | P |   |   | B |   | N |   | P |
       +---+---+---+---+---+---+---+---+
    2  |   | B |   |   | Q | P | P |   |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   | R |   |   | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                6     0.09     ++   Bxe4!!
                6     0.11  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                6->   0.11  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                7     0.14  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                7->   0.16  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                8     0.22  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc5
                8->   0.27  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc5
                9     0.52  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bc3 a4
                9->   0.58  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bc3 a4
               10     0.89  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc7 Bd4 Nfd5
               10->   1.14  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc7 Bd4 Nfd5
               11     2.14  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
               11->   2.56  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
               12     5.02  -0.27   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Bd4 Nfd5 Rac1 Rfd8 Rxc8 Rxc8
               12->  20.16  -0.27   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Bd4 Nfd5 Rac1 Rfd8 Rxc8 Rxc8
              time=20.16  cpu=99%  mat=0  n=31720524  fh=92%  nps=1573k
              ext-> chk=297260 cap=95730 pp=12236 1rep=17137 mate=568
              predicted=0  nodes=31720524  evals=10526885
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 20%(depth)  99%(sat)  99%(pawn)
              hashing-> 0%(exact)  19%(lower)  0%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=20.15  elap=20.16

       +---+---+---+---+---+---+---+---+
    8  | *R|   | *B| *Q| *K|   |   | *R|
       +---+---+---+---+---+---+---+---+
    7  | *P| *P|   |   | *B| *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   |   | *P|   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   | *P| P |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  | P |   |   | Q |   | P |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | N |   | B |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  |   | P | P |   |   |   | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   |   |   | R | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                7     0.08  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
                7->   0.08  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
                8     0.24  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Bg4 f5
                8->   0.25  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Bg4 f5
                9     0.85  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
                                    Qxd3 Qxd3 Bxd3
                9->   0.92  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
                                    Qxd3 Qxd3 Bxd3
               10     1.75  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
                                    <HT>
               10->   2.02  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
                                    <HT>
               11     6.16  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
                                    Bc5 Bh4
               11->   6.85  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
                                    Bc5 Bh4
              time=6.86  cpu=99%  mat=0  n=10804330  fh=90%  nps=1574k
              ext-> chk=101751 cap=33004 pp=16326 1rep=6026 mate=11
              predicted=0  nodes=10804330  evals=3361950
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
              hashing-> 0%(exact)  16%(lower)  0%(upper)
              SMP->  split=0  stop=0  data=0/64  cpu=6.84  elap=6.86
Total nodes: 100409437
Raw nodes per second: 1761569
Total elapsed time: 57
SMP time-to-ply measurement: 11.228070
White(1): quit

----------------------------------------------------------------------


Crafty v19.5 (1 cpus)

White(1): mt 4
max threads set to 4
White(1): hashp 1m
pawn hash table memory =  768K bytes.
White(1): hashp 8m
pawn hash table memory =    6M bytes.
White(1): bench
Running benchmark. . .

       +---+---+---+---+---+---+---+---+
    8  |   |   |   | *R|   | *K|   |   |
       +---+---+---+---+---+---+---+---+
    7  |   |   |   |   | *N| *P| *P|   |
       +---+---+---+---+---+---+---+---+
    6  |   | *P| *P| *R|   |   |   | *P|
       +---+---+---+---+---+---+---+---+
    5  | *P|   |   |   |   |   |   | P |
       +---+---+---+---+---+---+---+---+
    4  | P |   |   | P | P | P | P |   |
       +---+---+---+---+---+---+---+---+
    3  |   | N | R |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  |   |   |   |   |   | K |   |   |
       +---+---+---+---+---+---+---+---+
    1  |   |   | R |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

end-game phase
              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
starting thread 1
starting thread 2
starting thread 3
                9     0.08   0.17   e5 Rd5 g5 hxg5 fxg5 b5 h6 bxa4 h7 Ng6
                                    Na1 Rxd4 Rxc6
                9     0.33   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
                                    cxb5 Rc7
                9->   0.33   0.21   R3c2 Re8 e5 Rd5 g5 b5 gxh6 gxh6 axb5
                                    cxb5 Rc7
               10     0.48   0.22   R3c2 Ke8 e5 Rd5 g5 b5 gxh6 gxh6 Ra1
                                    b4 Rg1
               10     0.67   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
               10->   0.67   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4 (s=2)
               11     0.75   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
               11->   0.78   0.37   f5 R6d7 e5 Nd5 Rxc6 Nb4 R6c3 Na2 e6
                                    Nxc3 exd7 Nxa4
              time=0.78  cpu=373%  mat=0  n=4699964  fh=89%  nps=6025k
              ext-> chk=43666 cap=13173 pp=7237 1rep=1498 mate=269
              predicted=0  nodes=4699964  evals=2448622
              endgame tablebase-> probes=0  hits=0
              hashing-> 28%(raw) 26%(depth)  98%(sat)  97%(pawn)
              hashing-> 0%(exact)  19%(lower)  0%(upper)
              SMP->  split=679  stop=76  data=11/64  cpu=2.91  elap=0.78

       +---+---+---+---+---+---+---+---+
    8  | *R| *N| *B| *Q| *K| *B|   | *R|
       +---+---+---+---+---+---+---+---+
    7  | *P|   |   |   | *P| *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   | *P|   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   | *P| *P| P |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  |   |   |   | N |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | P |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  | P | P | P |   | Q | P | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   | B |   | K | B |   | R |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                6     0.01   0.69   e6 a6 exf7+ Kxf7 Qh5+ g6 Qe5 Bg7 Qf4+
                                    Bf6
                6->   0.01   0.69   e6 a6 exf7+ Kxf7 Qh5+ g6 Qe5 Bg7 Qf4+
                                    Bf6
                7     0.03   0.58   e6 a6 exf7+ Kxf7 Qh5+ g6 Qf3+ Kg7 Nb3
                                    e5 Bd3
                7->   0.04   0.58   e6 a6 exf7+ Kxf7 Qh5+ g6 Qf3+ Kg7 Nb3
                                    e5 Bd3
                8     0.11   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
                                    Ne5 Qf4
                8->   0.14   0.71   e6 a6 exf7+ Kxf7 Qf3+ Kg8 Nb3 Nc6 Bg5
                                    Ne5 Qf4
                9     0.36   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
                9->   0.45   0.66   e6 fxe6 Nxe6 Qd6 Nxf8 Ba6 Qh5+ Kxf8
                                    Bxa6 Nxa6 Qf5+ Ke8 O-O
               10     1.18   0.74   e6 a6 exf7+ Kxf7 Nf3 Nc6 Ng5+ Kg8 Qh5
                                    g6 Qf3 Ne5 Qf4
               10->   1.48   0.74   e6 a6 exf7+ Kxf7 Nf3 Nc6 Ng5+ Kg8 Qh5
                                    g6 Qf3 Ne5 Qf4
               11     2.54   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
                                    e5 Qe3 Kg8 Kb1
               11->   3.04   0.71   e6 a6 exf7+ Kxf7 Nf3 Nc6 Bg5 Qd6 O-O-O
                                    e5 Qe3 Kg8 Kb1
              time=3.04  cpu=397%  mat=0  n=20162587  fh=93%  nps=6632k
              ext-> chk=894756 cap=56860 pp=25380 1rep=62964 mate=1213
              predicted=0  nodes=20162587  evals=3001967
              endgame tablebase-> probes=0  hits=0
              hashing-> 20%(raw) 19%(depth)  99%(sat)  97%(pawn)
              hashing-> 0%(exact)  15%(lower)  1%(upper)
              SMP->  split=1840  stop=221  data=17/64  cpu=12.08  elap=3.04

       +---+---+---+---+---+---+---+---+
    8  |   |   |   |   | *B|   |   |   |
       +---+---+---+---+---+---+---+---+
    7  | *P|   |   |   | *K| *P|   |   |
       +---+---+---+---+---+---+---+---+
    6  |   |   |   |   |   |   | *P|   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   | *P| P |   |   | *P|
       +---+---+---+---+---+---+---+---+
    4  |   |   | *P| P |   | P |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   |   |   | K |   | P |   |
       +---+---+---+---+---+---+---+---+
    2  | P |   |   |   | N |   |   | P |
       +---+---+---+---+---+---+---+---+
    1  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

end-game phase
              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                9     0.03   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
                                    g4
                9->   0.03   0.45   f5 Kd7 Nf4 Kc6 fxg6 fxg6 e6 g5 Nh3
                                    g4
               10     0.05   0.52   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 Ke6 Kd2
                                    Bb5 <HT>
               10->   0.06   0.52   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 Ke6 Kd2
                                    Bb5 <HT>
               11     0.14   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
                                    Kc3
               11->   0.15   0.39   f5 Kd7 Nf4 Kc6 f6 g5 Nxh5 g4 Kd2 Bd7
                                    Kc3
               12     0.34   0.63   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 a4 Kd2
                                    <HT>
               12->   0.39   0.63   f5 Bc6 Nf4 gxf5 Nxh5 a5 Nf6 a4 Kd2
                                    <HT>
               13     0.94   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
               13->   1.05   0.75   f5 g5 h4 f6 hxg5 fxg5 Nc3 Bf7 Nb5 h4
                                    Nxa7 hxg3 Nc8+ Kd7 Nd6
               14     2.20   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
                                    Nxd5+ Kd8 Nf6 Bg6 d5
               14->   2.78   0.69   f5 g5 Nc3 Bc6 h4 g4 Ne2 Bd7 Nf4 Bxf5
                                    Nxd5+ Kd8 Nf6 Bg6 d5
              time=2.78  cpu=392%  mat=0  n=20421711  fh=90%  nps=7345k
              ext-> chk=660016 cap=78389 pp=146133 1rep=14058 mate=380
              predicted=0  nodes=20421711  evals=8713882
              endgame tablebase-> probes=0  hits=0
              hashing-> 32%(raw) 31%(depth)  99%(sat)  95%(pawn)
              hashing-> 0%(exact)  27%(lower)  2%(upper)
              SMP->  split=4955  stop=524  data=19/64  cpu=10.92  elap=2.78

       +---+---+---+---+---+---+---+---+
    8  | *R|   |   |   | *R|   | *K|   |
       +---+---+---+---+---+---+---+---+
    7  | *P| *P| *Q| *B|   | *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   |   | *P|   | N | Q |
       +---+---+---+---+---+---+---+---+
    4  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | P |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  | P | P |   |   |   | P | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   |   | R |   | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                7     0.01   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
                7->   0.03   0.21   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8
                8     0.06   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
                                    Qxe4
                8->   0.07   0.19   Bf5 Qf3 Bg6 Rad1 h6 Ne4 Rad8 h3 Bxe4
                                    Qxe4
                9     0.14   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
                                    b3
                9->   0.15   0.18   Bf5 Qf3 Bg6 Rad1 Rad8 h3 Bc2 Rxd8 Rxd8
                                    b3
               10     0.71   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
                                    Rxd8 Rxd8
               10->   0.84   0.13   Bf5 Rad1 Rad8 Qf3 g6 h3 f6 Ne4 Qc6
                                    Rxd8 Rxd8
               11     2.01   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
                                    Rxd8 Rxd8 b3
               11->   2.57   0.15   Bf5 Rad1 Bg6 Qg4 Rad8 h4 Bd3 Qf3 Bc2
                                    Rxd8 Rxd8 b3
              time=2.57  cpu=391%  mat=0  n=19217226  fh=91%  nps=7477k
              ext-> chk=411437 cap=57605 pp=800 1rep=60452 mate=7414
              predicted=0  nodes=19217226  evals=4151914
              endgame tablebase-> probes=0  hits=0
              hashing-> 20%(raw) 19%(depth)  99%(sat)  98%(pawn)
              hashing-> 0%(exact)  15%(lower)  0%(upper)
              SMP->  split=1111  stop=169  data=11/64  cpu=10.07  elap=2.57

       +---+---+---+---+---+---+---+---+
    8  |   |   | *R|   |   | *R| *K|   |
       +---+---+---+---+---+---+---+---+
    7  |   | *B| *Q| *N| *B| *P| *P|   |
       +---+---+---+---+---+---+---+---+
    6  |   | *P|   | *P| *P| *N|   | *P|
       +---+---+---+---+---+---+---+---+
    5  | *P| P |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  | N |   | P |   | P |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  | P |   |   | B |   | N |   | P |
       +---+---+---+---+---+---+---+---+
    2  |   | B |   |   | Q | P | P |   |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   | R |   |   | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                6     0.03     ++   Bxe4!!
                6     0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                6->   0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 (s=3)
                7     0.05  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 (s=2)
                7->   0.06  -0.49   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7
                8     0.08  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc5
                8->   0.09  -0.39   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rc5
                9     0.16  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bc3 a4
                9->   0.17  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bc3 a4
               10     0.26  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Bd4 Nfd5
               10->   0.33  -0.31   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Bd4 Nfd5
               11     0.61  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
               11->   1.06  -0.50   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Rxe4
                                    Nxd7 Nxd7 Bd4 Rd8 b6 Rxd4 Nxd4 Nxb6
                                    (s=2)
               12     1.73  -0.24   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Nd4 Nfd5 Nc6 a4
               12->   4.55  -0.24   Bxe4 Bxe4 Qxc4 Qxc4 Rxc4 Nxb6 Nxb6
                                    Bd3 Rcc8 Nd4 Nfd5 Nc6 a4 (s=4)
              time=4.56  cpu=398%  mat=0  n=26966730  fh=92%  nps=5913k
              ext-> chk=240280 cap=85566 pp=9402 1rep=12102 mate=360
              predicted=0  nodes=26966730  evals=8602328
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 20%(depth)  99%(sat)  99%(pawn)
              hashing-> 0%(exact)  18%(lower)  0%(upper)
              SMP->  split=1332  stop=119  data=14/64  cpu=18.15  elap=4.56

       +---+---+---+---+---+---+---+---+
    8  | *R|   | *B| *Q| *K|   |   | *R|
       +---+---+---+---+---+---+---+---+
    7  | *P| *P|   |   | *B| *P| *P| *P|
       +---+---+---+---+---+---+---+---+
    6  |   |   | *P|   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   | *P| P |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  | P |   |   | Q |   | P |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   | N |   | B |   |   |   |
       +---+---+---+---+---+---+---+---+
    2  |   | P | P |   |   |   | P | P |
       +---+---+---+---+---+---+---+---+
    1  | R |   |   |   |   | R | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

              time surplus   0.00  time limit 15:00 (15:00)
              depth   time  score   variation (1)
                7     0.03  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
                7->   0.03  -0.56   Bf5 Rac1 O-O Rf3 Re8 Rg3 Qc7
                8     0.08  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Be4 Nxe4 dxe4
                8->   0.08  -0.54   Bf5 Qd2 O-O Ne2 Re8 Ng3 Be4 Nxe4 dxe4
                9     0.33  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
                                    Qxd3 Qxd3 Bxd3
                9->   0.35  -0.53   Bf5 Ne2 c5 Qd2 d4 Bf2 O-O b4 d3 cxd3
                                    Qxd3 Qxd3 Bxd3
               10     0.63  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
                                    <HT>
               10->   0.70  -0.48   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 Bc5 a5
                                    <HT>
               11     1.74  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
                                    Bc5 Bh4
               11->   1.94  -0.47   Bf5 Ne2 O-O Qc3 Bg4 Ng3 Re8 h3 Be6
                                    Bc5 Bh4
              time=1.94  cpu=393%  mat=0  n=11361198  fh=90%  nps=5856k
              ext-> chk=102239 cap=33426 pp=15570 1rep=6100 mate=24
              predicted=0  nodes=11361198  evals=3461861
              endgame tablebase-> probes=0  hits=0
              hashing-> 21%(raw) 19%(depth)  99%(sat)  97%(pawn)
              hashing-> 0%(exact)  17%(lower)  0%(upper)
              SMP->  split=603  stop=81  data=10/64  cpu=7.64  elap=1.94
Total nodes: 102829416
Raw nodes per second: 6855294
Total elapsed time: 15
SMP time-to-ply measurement: 42.666667
White(1): quit



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

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.