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Subject: Re: Decrease in Crafty kNPS

Author: Dann Corbit

Date: 14:39:45 10/14/05

Go up one level in this thread


Crafty 19.20 has the wall detection algorithm, and so it solves WAC.230 in 2.2
seconds, and 19.21 takes one minute.  Still, that's pretty good as years ago
nobody could solve it period -- even thinking overnight.

E:\crafty\release>type log.077
choose from book moves randomly (using weights.)
choose from 5 best moves.
book learning enabled
result learning enabled
position learning enabled
resign after 5 consecutive moves with score < -9.
5 piece tablebase files found
13980kb of RAM used for TB indices and decompression tables

Crafty v20.1 (1 cpus)

White(1): st 180
search time set to 180.00.
White(1): hash 512M
hash table memory =  384M bytes.
White(1): hashp 256M
pawn hash table memory =  256M bytes.
White(1): epdpfga wac230.epd ww230.out
PFGA: EPD record: 1   ID: WAC.230
              time surplus   0.00  time limit 3:00 (+0.00) (3:00)
              depth   time  score   variation (1)
               12     1.04  -2.28   1. ... Rh7 2. Ba3 Kb5 3. Re2 a4 4.
                                    Kg4 Bb7 5. Rb2 Bc6 6. f3 Rb7 7. Rh2
                                    Kb6 8. Bb2 <HT>
               12->   1.21  -2.28   1. ... Rh7 2. Ba3 Kb5 3. Re2 a4 4.
                                    Kg4 Bb7 5. Rb2 Bc6 6. f3 Rb7 7. Rh2
                                    Kb6 8. Bb2 <HT>
               13     3.25  -2.32   1. ... Rh7 2. Rb1 a4 3. Ba3 Rh5 4.
                                    Kf4 Rh2 5. Kg3 Rh8 6. Bb2 Rh5 7. Kf4
                                    Rh2
               13->   3.57  -2.32   1. ... Rh7 2. Rb1 a4 3. Ba3 Rh5 4.
                                    Kf4 Rh2 5. Kg3 Rh8 6. Bb2 Rh5 7. Kf4
                                    Rh2
               14     5.42  -2.30   1. ... Rh7 2. Rb1 a4 3. Ba3 Rh5 4.
                                    Kf4 Kb5 5. Rb2 Bb7 6. Bc5 Rh4+ 7. Kg3
                                    Rh1 8. f3 Bc6
               14->   8.39  -2.30   1. ... Rh7 2. Rb1 a4 3. Ba3 Rh5 4.
                                    Kf4 Kb5 5. Rb2 Bb7 6. Bc5 Rh4+ 7. Kg3
                                    Rh1 8. f3 Bc6
               15    14.89  -2.31   1. ... Rh7 2. Rb1 Rh5 3. Kg4 a4 4.
                                    Ba3 Bb7 5. Bb2 Kb6 6. Ra1 Bc6 7. Ra3
                                    Rh2 8. Kg3 Rh5
               15->  18.04  -2.31   1. ... Rh7 2. Rb1 Rh5 3. Kg4 a4 4.
                                    Ba3 Bb7 5. Bb2 Kb6 6. Ra1 Bc6 7. Ra3
                                    Rh2 8. Kg3 Rh5
               16    29.78  -2.30   1. ... Rh7 2. Rb1 Rh5 3. Kg4 a4 4.
                                    Ba3 Bb7 5. Kf4 Rh4+ 6. Kg3 Re4 7. f3
                                    Re3 8. Bb2 a3 9. Bxa3 Rxc3
               16     1:00     -1   1. ... Rb4!!
               16     1:13  -2.80   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rb1 c3 5. Ba3 Kc4 6. Rd1 Bd7 7. Bc1
                                    Kb4 8. Rd3 c2 9. Rxb3+ axb3 10. Kf4
               16->   1:19  -2.80   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rb1 c3 5. Ba3 Kc4 6. Rd1 Bd7 7. Bc1
                                    Kb4 8. Rd3 c2 9. Rxb3+ axb3 10. Kf4
               17     1:37  -2.76   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rb1 c3 5. Ba3 Kc4 6. Rd1 c2 7. Rd2
                                    Kc3 8. Bc1 Ba6 9. Rxc2+ Kxc2 10. Ba3
                                    b2
               17->   1:57  -2.76   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rb1 c3 5. Ba3 Kc4 6. Rd1 c2 7. Rd2
                                    Kc3 8. Bc1 Ba6 9. Rxc2+ Kxc2 10. Ba3
                                    b2
               18     2:58     -1   1. ... Rb4!!
              time=3:00  mat=-1  n=256047241  fh=92%  nps=1.42M
              ext-> chk=6427325 cap=252515 1rep=121701 mate=7809
              predicted=0  nodes=256047241  evals=143466687  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=0  stop=0  data=0/32  elap=3:00
Black(1): quit

E:\crafty\release>type log.079
choose from book moves randomly (using weights.)
choose from 5 best moves.
book learning enabled
result learning enabled
position learning enabled
resign after 5 consecutive moves with score < -9.
5 piece tablebase files found
13980kb of RAM used for TB indices and decompression tables

Crafty v19.20 (1 cpus)

White(1): st 180
search time set to 180.00.
White(1): hash 512M
hash table memory =  384M bytes.
White(1): hashp 256M
pawn hash table memory =  192M bytes.
White(1): epdpfga wac230.epd wac230o.out
PFGA: EPD record: 1   ID: WAC.230
              time surplus   0.00  time limit 3:00 (3:00)
              depth   time  score   variation (1)
               11     0.85  -1.74   1. ... Rh7 2. Rb1 Kb5 3. Ba3 Rf7 4.
                                    Rb2 Rf5 5. Kg4 Ka4 6. Bc5 Kb5 <HT>
               11->   0.86  -1.74   1. ... Rh7 2. Rb1 Kb5 3. Ba3 Rf7 4.
                                    Rb2 Rf5 5. Kg4 Ka4 6. Bc5 Kb5 <HT>
               12     1.00     +1   1. ... Rh7
               12     1.22   0.00   1. ... Rh7 2. Rb1 Kb5 3. Ba3 Rf7 4.
                                    Ra1 Ka4 5. Bb2+ Kb5 6. Ba3
               12     2.19  -1.70   1. ... Rb4 2. cxb4 a4 3. Rb1 c3 4.
                                    Rc1 b2 5. Rxc3+ Kd7 6. Rc7+ Kd8 7.
                                    Ra7 b1=Q 8. Rxa4
               12->   2.29  -1.70   1. ... Rb4 2. cxb4 a4 3. Rb1 c3 4.
                                    Rc1 b2 5. Rxc3+ Kd7 6. Rc7+ Kd8 7.
                                    Ra7 b1=Q 8. Rxa4
               13     3.52     -1   1. ... Rb4!!
               13     4.43  -2.26   1. ... Rb4 2. cxb4 a4 3. f3 c3 4. b5+
                                    Kxb5 5. Rb1 c2 6. Rc1 Kc4 7. Bc5 Kc3
                                    8. Rxc2+ Kxc2
               13->   4.91  -2.26   1. ... Rb4 2. cxb4 a4 3. f3 c3 4. b5+
                                    Kxb5 5. Rb1 c2 6. Rc1 Kc4 7. Bc5 Kc3
                                    8. Rxc2+ Kxc2
               14     5.44     +1   1. ... Rb4
               14     6.91  -1.76   1. ... Rb4 2. cxb4 a4 3. Rb1 Kb5 4.
                                    Ra1 c3 5. Rc1 c2 6. f3 a3 7. Kf4 a2
                                    8. Rxc2 <HT>
               14->   8.97  -1.76   1. ... Rb4 2. cxb4 a4 3. Rb1 Kb5 4.
                                    Ra1 c3 5. Rc1 c2 6. f3 a3 7. Kf4 a2
                                    8. Rxc2 <HT>
               15    12.02     -1   1. ... Rb4!!
               15    16.04  -2.32   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3
               15->  18.55  -2.32   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3
               16    23.50  -2.27   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3 10. Be3
               16->  32.60  -2.27   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3 10. Be3
               17    46.46  -2.34   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3 10. Be3
                                    Bd7
               17->   1:00  -2.34   1. ... Rb4 2. cxb4 a4 3. b5+ Kxb5 4.
                                    Rc2 bxc2 5. Ba3 c3 6. Kf4 Kc4 7. Ke3
                                    c1=Q+ 8. Bxc1 Kb3 9. Kf4 a3 10. Be3
                                    Bd7
               18     2:57     -1   1. ... Rb4!!
              time=3:00  mat=-1  n=210783757  fh=89%  nps=1.17M
              ext-> chk=6511609 cap=197910 1rep=232478 mate=6757
              predicted=0  nodes=210783757  evals=63511517  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=0  stop=0  data=0/32  elap=3:00
Black(1): quit

E:\crafty\release>



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