another Crafty flashback from 20 years ago...

[MikeB]

Recompiled for today's 64 bit iMac MAC And it works on xboard! Found this classic crafty on Jim Ablett's site - burned in his "ancient crafty" source folder - this was pre-Jakarta so we're talking about 1995.

If anyone PM's me , I will put the exe out on DropBox.


White(3): info
Crafty version 11.23
hash table memory = 100663296 64-bit words.
pawn hash table memory = 8192 64-bit words.
60 moves/30 minutes 0 seconds primary time control
30 moves/15 minutes 0 seconds secondary time control
White(3): hashp 500M
pawn hash table memory = 256M bytes.
White(3): info
Crafty version 11.23
hash table memory = 100663296 64-bit words.
pawn hash table memory = 33554432 64-bit words.
60 moves/30 minutes 0 seconds primary time control
30 moves/15 minutes 0 seconds secondary time control
Black(3): setboard

[d] 4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w

Code: Select all

White(3): go
              time limit   2:00
              depth   time   score    variation (1)
                6     0.01  -1.866    Kf1 Re2 Qc3 Be7 Be5 Rxe5 dxe5 Bxh4
                                      Rxh4
                6->   0.01  -1.866    Kf1 Re2 Qc3 Be7 Be5 Rxe5 dxe5 Bxh4
                                      Rxh4
                7     0.02  -1.594    Kf1 Re2 Qb1 Rd2 Rg1 Bf8 Rg5
                7->   0.02  -1.594    Kf1 Re2 Qb1 Rd2 Rg1 Bf8 Rg5
                8     0.11  -1.495    Kf1 a6 Qb1 Bb4 Be5 Rxe5 dxe5 Qxe5
                8->   0.12  -1.495    Kf1 a6 Qb1 Bb4 Be5 Rxe5 dxe5 Qxe5
                9     0.28      ++    Kf1!!    
                9     0.37  -1.194    Kf1 Ra8 Qb1 Nd5 Bxd5 cxd5 Kg2 Rc8
                                      Re1 Qc4
                9->   0.38  -1.194    Kf1 Ra8 Qb1 Nd5 Bxd5 cxd5 Kg2 Rc8
                                      Re1 Qc4
               10     0.82      ++    Kf1!!    
               10     1.33  -0.417    Kf1 Kf8 Rxh5 gxh5 Rxh5 Re1+ Kxe1 Nxh5
                                      Qh6+ Ke8 Qh8+ Bf8 Qxh5
               10->   1.35  -0.417    Kf1 Kf8 Rxh5 gxh5 Rxh5 Re1+ Kxe1 Nxh5
                                      Qh6+ Ke8 Qh8+ Bf8 Qxh5
               11     2.21  -0.512    Kf1 Kf8 Rxh5 gxh5 Rxh5 Re1+ Kxe1 Nxh5
                                      Qh6+ Ke8 Qxh5 c5 Qh8+ Bf8 dxc5 Qxc5
               11     2.42      ++    Qxf4!!    
               11    15.18   Mat06    Qxf4 Bxf4 Rxh5 gxh5 Rxh5 Bh6 Rxh6
                                      Qh2+ Kxh2 Re2 Rh8#
               11->  15.18   Mat06    Qxf4 Bxf4 Rxh5 gxh5 Rxh5 Bh6 Rxh6
                                      Qh2+ Kxh2 Re2 Rh8#
              time: 15.19  cpu:100%  mat:2  n:106459052  nps:7008495
              ext-> checks:12103051 recaps:178548 pawns:177326 1rep:2413621
              nodes  full:19008708  quiescence:87450344  evals:87450328
              endgame tablebase-> probes done: 0  successful: 0
              hashing-> trans/ref:60%  pawn:1%  used:w27% b67%

Crafty will mate in 6 moves.


White(3): Qxf4 
              time used:  15.19

Black(3): setboard [d] 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b

Code: Select all

Black(3): go
              clearing transposition table
              clearing pawn hash tables
              time limit   2:00
              depth   time   score    variation (1)
                5     0.00   0.371    cxd5 Qxd5+ Be6 Qe5 Qe2 Qg5+ Rg6
                5->   0.00   0.371    cxd5 Qxd5+ Be6 Qe5 Qe2 Qg5+ Rg6
                6     0.01   0.374    cxd5 Qxd5+ Be6 Qc5 Rf7 Qg5+ Rg6 Qe5
                                      <HT>
                6->   0.02   0.374    cxd5 Qxd5+ Be6 Qc5 Rf7 Qg5+ Rg6 Qe5
                                      <HT>
                7     0.03   0.273    cxd5 Qxd5+ Be6 Qd1 Qxd1 Nxd1 Rhf6
                                      a4 Rf3
                7     0.06   0.336    Rf7 dxc6 Rxc6 Qb8+ Rf8 Qb5 Rcf6 Qg5+
                                      Rg6 Qd5+ Be6
                7->   0.08   0.336    Rf7 dxc6 Rxc6 Qb8+ Rf8 Qb5 Rcf6 Qg5+
                                      Rg6 Qd5+ Be6
                8     0.14   0.235    Rf7 Rad1 cxd5 Rxd5 Rhf6 Rg5+ Rg6 Qb5
                                      Rxg5 Qxg5+ Rg7
                8->   0.24   0.235    Rf7 Rad1 cxd5 Rxd5 Rhf6 Rg5+ Rg6 Qb5
                                      Rxg5 Qxg5+ Rg7
                9     0.49   0.209    Rf7 dxc6 Rxc6 Qd5 Rd6 Qg5+ Rg6 Qd8+
                                      Kg7 Rac1 Rd6 Qg5+ Rg6
                9     0.64   0.309    cxd5 Qxd5+ Be6 Qd1 Rhf6 Rc1 R6f7 Qxf3
                                      Rxf3 Kg1 c5
                9->   0.74   0.309    cxd5 Qxd5+ Be6 Qd1 Rhf6 Rc1 R6f7 Qxf3
                                      Rxf3 Kg1 c5
               10     0.89   0.161    cxd5 Qxd5+ Be6 Qd1 Rhf6 Rc1 R6f7 Qxf3
                                      Rxf3 Kg1 h2+ Kxh2 Rxf2+ Rxf2 Rxf2+
               10->   1.39   0.161    cxd5 Qxd5+ Be6 Qd1 Rhf6 Rc1 R6f7 Qxf3
                                      Rxf3 Kg1 h2+ Kxh2 Rxf2+ Rxf2 Rxf2+
               11     1.72   0.195    cxd5 Qxd5+ Be6 Qd1 c5 Qxf3 Rxf3 a4
                                      Rhf6 Kg1 Kf7 Rac1 Bd7 Nd5 <HT>
               11->   2.73   0.195    cxd5 Qxd5+ Be6 Qd1 c5 Qxf3 Rxf3 a4
                                      Rhf6 Kg1 Kf7 Rac1 Bd7 Nd5 <HT>
               12     4.05      ++    cxd5!!    
               12     7.30  10.760    Qg2+ Nxg2 hxg2+ Kxg2 Bf3+ Qxf3 exf3+
                                      Kg1 Rf5 Rfe1 Rfh5 Re8+ Kf7 Re7+ Kxe7
                                      d6+ cxd6 Re1+ Kf6 Re6+ Kxe6 a4
               12->   7.30  10.760    Qg2+ Nxg2 hxg2+ Kxg2 Bf3+ Qxf3 exf3+
                                      Kg1 Rf5 Rfe1 Rfh5 Re8+ Kf7 Re7+ Kxe7
                                      d6+ cxd6 Re1+ Kf6 Re6+ Kxe6 a4
               13     7.33      ++    Qg2+!!    
               13     7.62   Mat11    Qg2+ Nxg2 hxg2+ Kxg2 Bf3+ Qxf3 exf3+
                                      Kg1 Rf5 Rfe1 Rfh5 Re8+ Kf7 Re7+ Kxe7
                                      Re1+ Kd8 Re8+ Kxe8 a4 Rh1#
               13->   8.12   Mat11    Qg2+ Nxg2 hxg2+ Kxg2 Bf3+ Qxf3 exf3+
                                      Kg1 Rf5 Rfe1 Rfh5 Re8+ Kf7 Re7+ Kxe7
                                      Re1+ Kd8 Re8+ Kxe8 a4 Rh1#
              time:  8.14  cpu:100%  mat:9  n:46554588  nps:5719236
              ext-> checks:2592894 recaps:177027 pawns:251659 1rep:527364
              nodes  full:10032884  quiescence:36521704  evals:36521721
              endgame tablebase-> probes done: 0  successful: 0
              hashing-> trans/ref:76%  pawn:-17%  used:w56% b26%

Crafty will mate in 11 moves.


Black(3): Qg2+ 
              time used:   8.14
White(4): 

Could be a nice sparring partner who wants an engine slightly less than today's powerhouses. The 7M nps on the first problem tells you how well the code was written 20 years ago.

Of course this how fast the current Crafty solves the first problem:

Code: Select all

Crafty v25.0 080215 (1 cpus)

White(1): hash 512M
Warning--  xboard 'memory' option disabled
hash table memory = 512M bytes (41.9M entries).
White(1): hashp 256m
Warning--  xboard 'memory' option disabled
pawn hash table memory = 256M bytes (8M entries).
White(1): pon off
pondering disabled.
White(1): st 120
search time set to 120.00.
White(1): 4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - 
White(1): go
        time surplus   0.00  time limit 2:00 (2:00)
        depth     time       score   variation (1)
         15->   0.15/2:00    Mat06   1. Qxf4 Be5 2. Rxh5 Bxf6 3. Qxf6 gxh5
                                     4. Rxh5 Qh2+ 5. Rxh2 Rd6 6. Qxf7#
        time=0.15(100%)  nodes=1088803(1.1M)  fh1=78%  pred=0  nps=7.3M
        checks=38.3K  qchecks=67.2K  fp=289.7K  mcp=61.6K  reversible=0
        LMReductions:  1/42.4K  2/27.6K  3/20.1K  4/4.6K  5/103
        null-move (R):  3/33.7K  4/3.1K  5/25

mate in 6 moves.

White(1): Qxf4
              time used:   0.15

snd even faster when running all 4 cores:

Code: Select all

Black(1): 4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w
White(1): g
        time surplus   0.00  time limit 2:00 (2:00)
        depth     time       score   variation (1)
starting thread 1 2 3 <done>
         15->   0.04/2:00    Mat06   1. Qxf4 Bxf4 2. Rxh5 gxh5 3. Rxh5 Bh6
                                     4. Rxh6 Qh2+ 5. Rxh2 Rxd4 6. Rh8#
        time=0.04(83%)  nodes=613004(613.0K)  fh1=81%  pred=0  nps=15.3M
        checks=18.7K  qchecks=24.2K  fp=194.5K  mcp=30.7K  reversible=0
        LMReductions:  1/21.0K  2/13.4K  3/8.0K  4/1.7K  5/26
        null-move (R):  3/19.9K  4/1.3K  5/20
        splits=142(16)  aborts=14  joins=322  data=6%

mate in 6 moves.

White(1): Qxf4
              time used:   0.04

Black(1): 

[MikeB]

Surprise Surprise - We do have some Mac users in this mostly Windows or Linux crowd.

DropBox Link to The Crafty v11.23 exe for the Mac with source:

https://www.dropbox.com/s/6d0zy5fr830tf ... 3.zip?dl=0

Using the "xboard" command in the ".craftyrc" is imperative. I have use the tournament function in xboard v4.8.0d and it worked fine. Some of the other features in xboard may not work. Playing games and machine to macthine seem to work - but only if use the epd files for startup and not the pgn files. You will need to create a new book for an opening book file. Type "help book" at the command line.

[MikeB]

For what it's worth - this version may be rated around 2500 on the CCLR list - perhaps a little more or a little less. Which is actually not bad for 1995 software.