Winboard Forum

by **Vladimir Medvedev** » 14 Jul 2006, 10:46

GreKo 3.3 released.
http://greko.chess.googlepages.com

Two bugs fixed. Minor changes in search.

by **Volker Pittlik** » 14 Jul 2006, 12:05

Thanks Vladimir for the quick response.

Unfortunately it seems GreKo isn't pondering at all now :-(

.

Volker

by **Vladimir Medvedev** » 14 Jul 2006, 12:27

Could you please post here sample of debug-file?

by **Vladimir Medvedev** » 14 Jul 2006, 12:40

Maybe I misunderstood protocol description?

Should engine start pondering after the following:

(GUI) > hard
(GUI) > force
(GUI) > e2e4
(GUI) > e7e5
(GUI) > go
(engine) > move g1f3
<ponder on not here>... - ?

Does "force" command turns pondering till next "hard", or just till "go"?

by **Vladimir Medvedev** » 14 Jul 2006, 12:41

I mean, turns off?

by **Volker Pittlik** » 14 Jul 2006, 12:46

Vladimir Medvedev wrote:Could you please post here sample of debug-file?

Here it is:

Code: Select all: Script started on Fre 14 Jul 2006 12:54:53 CEST volker:~> xb greko-1 crafty-2 -mg 1 -debug ... StartChildProcess (dir="/home/volker/schach/greko") ./greko 413 >first : xboard ... 656 <first : feature myname="GreKo 3.3" setboard=1 analyze=1 colors=0 san=0 ping=1 name=1 done=1 ... 718 >first : new random 718 >first : level 0 5 5 719 >first : post 719 >first : hard 719 >first : ping 1 719 >first : force StartChildProcess (dir="/home/volker/schach/crafty") ./crafty ... 1053 <second: feature myname="Crafty-20.14" name=1 1101 >second: new random 1101 >second: level 0 5 5 1101 >second: post 1101 >second: hard 1101 >second: ping 1 1101 >second: force ... 1102 >first : go 1217 <first : kibitz This is GreKo v3.3 ...

*** meanwhile both engines out of book ***

Code: Select all: 149511 <second: move Be7 Interrupting first 149512 >first : time 26770 otim 28388 149512 >first : f8e7 AnimateMove: piece 8 slides from 5,7 to 4,6 149639 <second: Hint: h3 149639 <first : 149639 <first : Time left: 262.70 sec. 149640 <first : Moves left: 40 149640 <first : Time per move: 6.57 sec. 149640 <first : 149640 <first : 1 -72 1 230 11. h4 149640 <first : 2 -75 1 673 11. Rd1 Rxd1+ 12. Bxd1 149640 <first : 3 -76 4 6356 11. h3 Bf5 12. Nd2 149640 <first : 4 -73 6 10812 11. h3 Bf5 12. Bc4 e4 149860 <first : 5 -73 15 36898 11. h3 Bf5 12. g4 Be6 13. Bd3 150295 <second: 11 -71 76 204368 11. ... Bf5 12. Ng5 Rhf8 13. g4 Bg6 14. Rd1 Rxd1+ 15. Kxd1 Rd8+ 16. Kc1 h6 17. Nf3 Kd7 <HT>

*** Crafty is thinking while it is GreKo's turn ***

Code: Select all: 150374 <first : 6 -68 40 108583 11. h3 Bh5 12. Rd1 f5 13. a3 Rxd1+ 14. Bxd1 152130 <first : 7 -73 124 348366 11. h3 Bh5 12. Re1 e4 13. Nd4 Bxe2 14. Rxe2 153843 <second: 11 -71 431 1399969 11. ... Bf5 12. Ng5 Rhf8 13. g4 Bg6 14. Rd1 Rxd1+ 15. Kxd1 Rd8+ 16. Kc1 h6 17. Nf3 Kd7 <HT> 155170 <first : 8 -63 273 791106 11. h3 Bf5 12. Ng5 Bg6 13. Bc4 Rhf8 14. f4 f5 15. fxe5 Nxe5 162532 <first : 9 -59 637 1808369 11. h3 Bf5 12. Ng5 Rhf8 13. Bg4 Bxg4 14. hxg4 Bxg5 15. Bxg5 f6 162968 <first : 9 -59 657 1854261 11. h3 Bf5 12. Ng5 Rhf8 13. Bg4 Bxg4 14. hxg4 Bxg5 15. Bxg5 f6 162969 <first : 162969 <first : move h2h3 162970 >second: time 28388 otim 25924 162970 >second: h3 AnimateMove: piece 0 slides from 7,1 to 7,2 163095 <first : 163320 <second: move Bf5

*** and got a ponder hit ***

Code: Select all: Interrupting first 163321 >first : time 25924 otim 28853 ...

*** if the opponent does not get a ponder hit it thinks alone ***

Code: Select all: 181237 <second: 11 -81 442 1368481 13. ... h6 14. Nf3 a6 15. b3 Ba3+ 16. Kb1 Rhf8 17. Rd1 Rxd1+ 18. Bxd1 Rd8 19. Be2 Kd7 20. Bc4 189380 <first : 8 -64 560 1483117 13. Bc4 Rhf8 14. Re1 h6 15. Nf3 Be4 16. Nd2 Bf5 190571 <first : 8 -64 616 1625047 13. Bc4 Rhf8 14. Re1 h6 15. Nf3 Be4 16. Nd2 Bf5 190571 <first : 190572 <first : move e2c4 190573 >second: time 29313 otim 24239 190573 >second: Bc4 AnimateMove: piece 2 slides from 4,1 to 2,3 190736 <first : 191958 <second: 10 -83 99 630674 13. ... Rhf8 14. Rd1 Rxd1+ 15. Kxd1 e4 16. h4 h6 17. Nh3 Rd8+ 18. Ke2 Ne5 19. Bb3 Bf5 192725 <second: 10 -83 176 1216216 13. ... Rhf8 14. Rd1 Rxd1+ 15. Kxd1 e4 16. h4 h6 17. Nh3 Rd8+ 18. Ke2 Ne5 19. Bb3 Bf5 196613 <second: 11 -71 565 3661271 13. ... Rhf8 14. h4 Na5 15. Bd3 Bxd3 16. cxd3 h6 17. Nf3 Rxd3 18. Nxe5 Rd5 198593 <second: 11 -75 763 4913302 13. ... Rd7 14. Rd1 h6 15. Rxd7 Kxd7 16. Nf3 Rd8 17. Bd5 f6 18. Nh4 Bh5 19. Bxc6+ Kxc6 20. Bxa7 199893 <second: 11 -75 893 5928718 13. ... Rd7 14. Rd1 h6 15. Rxd7 Kxd7 16. Nf3 Rd8 17. Bd5 f6 18. Nh4 Bh5 19. Bxc6+ Kxc6 20. Bxa7 201830 <second: 12 -77 1086 7214618 13. ... Rd7 14. Rd1 h6 15. Rxd7 Kxd7 16. Nf3 Rd8 17. Bd5 Bf6 18. Kd2 Kd6 19. c4 204333 <second: move Rd7 Interrupting first

It is also visible with the "top" tool in Linux and should also be
observable with the task manager under Windows.

Volker

by **Vladimir Medvedev** » 17 Jul 2006, 14:13

I tried to fix the bug with pondering. Now it works, at least on my machine under WinBoard 4.2.6 and Arena.

Here is my winboard.debug:

Code: Select all: recognized 'normal' (-1) as variant normal WinBoard 4.2.7 + greko.exe Reset(1, 0) from gameMode 0 recognized 'normal' (-1) as variant normal GameEnds(0, (null), 2) StartChildProcess (dir="e:\chess\greko-3.x\bin_msvc") greko.exe 687 >first : xboard protover 2 687 <first : 687 <first : GreKo 3.3a (16-July-2006) 687 <first : 687 <first : Type help to get list of commands 687 <first : Type ver to get version and author info 687 <first : 687 <first : 687 <first : Initializing bitboards... 687 <first : 687 <first : Opening book: 17233 nodes (GreKo.bin) 687 <first : Learn file: 0 nodes (GreKo.lrn) 687 <first : 687 <first : Main hash: 30.82 MBytes, 1926281 nodes 687 <first : Pawn hash: 1.18 MBytes, 8191 nodes 687 <first : ---------- 687 <first : TOTAL: 32.00 MBytes 687 <first : 687 <first : White(1): 687 <first : feature myname="GreKo 3.3a" setboard=1 analyze=1 colors=0 san=0 ping=1 name=1 done=1 687 >first : accepted myname 687 >first : accepted setboard 687 >first : accepted analyze 687 >first : accepted colors 687 >first : accepted san 687 >first : accepted ping 687 >first : accepted name 687 >first : accepted done 687 <first : kibitz This is GreKo v3.3a 703 >first : new random 703 >first : level 0 5 0 703 >first : post 703 >first : hard 703 >first : ping 1 718 <first : pong 1 5672 >first : force StartChildProcess (dir="") GNUChes5 xboard 6250 >second: xboard protover 2 6250 <second: feature setboard=1 analyze=1 ping=1 draw=0 sigint=0 variants="normal" myname="GNU Chess 5.07" done=1 6250 >second: accepted setboard 6250 >second: accepted analyze 6250 >second: accepted ping 6250 >second: accepted draw 6250 >second: accepted sigint 6250 >second: accepted variants 6250 >second: accepted myname 6250 >second: accepted done 6281 >second: new random 6281 >second: level 0 5 0 6281 >second: post 6281 >second: hard 6281 >second: ping 1 6281 >second: force 6281 >first : computer 6281 >first : name GNU Chess 5.07 6281 >second: computer 6281 >first : time 30000 otim 30000 6281 >first : go 6281 <first : kibitz This is GreKo v3.3a 6297 <first : 6297 <first : Time left: 295.00 sec. 6297 <first : Moves left: 40 6297 <first : Time per move: 7.38 sec. 6297 <first : 6297 <first : 0 0 0 0 (e4 71%, d4 10%, Nf3 9%, c4 3%, b3 3%, b4 3%, f4 3%) 6297 <first : 6297 <first : move e2e4 6297 >second: time 30000 otim 29998 6297 >second: e2e4 6297 >second: black 6297 >second: go 6390 <first : 6390 <first : Start pondering... 6390 <first : 6390 <first : 1 0 0 24 1. ... e5 6390 <first : 2 21 0 150 1. ... e5 2. Bc4 6390 <first : 3 8 1 1362 1. ... Nf6 2. e5 Ne4 6390 <first : 4 19 1 6037 1. ... e5 2. Nc3 Bc5 3. Bc4 6390 <first : 5 6 6 28672 1. ... e5 2. Nf3 d5 3. d4 Nf6 4. Bb5+ c6 6406 <second: TCMove = 35 6406 <second: Root = -10, Phase = 1 6406 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6406 <second: Ply Time Eval Nodes Principal-Variation 6406 <second: 1. 62 0 20 e4 6406 <second: 2. 13 0 51 d3 d5 Nc3 Nf6 6406 <second: 3. 13 0 71 d3 d5 Nc3 Nf6 6406 <second: 4. 13 0 91 d3 d5 Nc3 Nf6 6406 <second: 5. 13 0 367 d3 d5 Nc3 Nf6 6406 <second: Root = -10, Phase = 1 6406 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6406 <second: Ply Time Eval Nodes Principal-Variation 6406 <second: 1. 62 0 20 e4 6406 <second: 2. 13 0 47 d3 d5 Nc3 6406 <second: 3. 13 0 67 d3 d5 Nc3 6406 <second: 4. 13 0 87 d3 d5 Nc3 6406 <second: 5. 13 0 107 d3 d5 Nc3 6422 <second: 6. -37 0 9968 d3 d5 Nc3 Nf6 Nf3 6422 <second: pong 1 6437 <second: Root = -10, Phase = 1 6437 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6437 <second: Ply Time Eval Nodes Principal-Variation 6437 <second: 1. 62 0 20 e4 6437 <second: 2. -10 0 89 e4 e5 6437 <second: 3. 34 0 259 e4 d5 Nc3 dxe4 Nxe4 6437 <second: 4. -3 0 754 e4 d5 Nc3 Nf6 exd5 6437 <second: 5. 30 0 2237 e4 d5 Nc3 6437 <second: Root = -10, Phase = 1 6437 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6437 <second: Ply Time Eval Nodes Principal-Variation 6437 <second: 1. 62 0 20 e4 6437 <second: 2. -10 0 88 e4 e5 6437 <second: 3. 34 0 233 e4 d5 Nc3 dxe4 Nxe4 6437 <second: 4. -3 0 574 e4 d5 Nc3 Nf6 exd5 Nxd5 6437 <second: 5. 30 0 1300 e4 d5 Nc3 dxe4 Nxe4 e5 Nf3 6453 <second: Root = -10, Phase = 1 6453 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6453 <second: Ply Time Eval Nodes Principal-Variation 6453 <second: 1. 62 0 20 e4 6453 <second: 2. -10 0 90 e4 e5 6453 <second: 3. 13 0 163 e4 d5 Nc3 d4 Nd5 6453 <second: 4. -2 0 606 e4 e5 d4 Nf6 dxe5 Nxe4 6453 <second: Root = -10, Phase = 1 6453 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6453 <second: Ply Time Eval Nodes Principal-Variation 6453 <second: 1. 62 0 20 e4 6453 <second: 2. -10 0 88 e4 e5 6453 <second: 3. 13 0 153 e4 d5 Nc3 d4 Nd5 6453 <second: 4. -2 0 523 e4 e5 d4 Nf6 dxe5 Nxe4 6453 <second: 5. 10 0 2214 e4 e5 Qf3 Nc6 Nc3 6468 <second: Root = -10, Phase = 1 6468 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6468 <second: Ply Time Eval Nodes Principal-Variation 6468 <second: 1. 62 0 20 e4 6468 <second: 2. -10 0 88 e4 e5 6468 <second: 3. 13 0 155 e4 d5 Nc3 d4 Nd5 6468 <second: 4. 8 0 393 e4 e5 d4 exd4 Qxd4 Qf6 Qxf6 6468 <second: 5. 10 0 1377 e4 e5 Qf3 Nc6 Nc3 6484 <second: 1. e2e4 6484 <second: Root = -62, Phase = 1 6484 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6484 <second: Ply Time Eval Nodes Principal-Variation 6484 <second: 1. -9 0 20 e6 6484 <second: 2. -13 0 122 d5 Nc3 d4 6484 <second: 3. -13 0 349 d5 Nc3 d4 6484 <second: 4. -13 0 659 d5 Nc3 d4 6484 <second: 5. -13 0 2286 d5 Nc3 d4 6484 <second: Root = -82, Phase = 1 6484 <second: Time = 5.00, Max = 20.00, Left = 300.00, Moves = 35 6484 <second: Ply Time Eval Nodes Principal-Variation 6484 <second: 1. -10 0 20 e5 6484 <second: 2. -43 0 266 d5 Qf3 6500 <second: 3. -10 0 1129 e5 Nc3 Nc6 6500 <first : 6 24 18 85249 1. ... e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 6500 <second: 4. 3 0 5465 d5 e5 Nc6 Bb5 6625 <second: Search time bonus near book 6625 <second: Root = -82, Phase = 1 6625 <second: Time = 11.16, Max = 44.65, Left = 300.00, Moves = 35 6625 <second: Ply Time Eval Nodes Principal-Variation 6625 <second: MoveLimit is 35 6625 <second: TimeLimit is 300.000000 6625 <second: 1. ... e7e5 Interrupting first 6625 >first : time 29998 otim 29967 6625 >first : e7e5 6703 <second: My move is: e7e5 6703 <second: Root = 10, Phase = 1 6703 <second: Time = 11.16, Max = 44.65, Left = 300.00, Moves = 35 6703 <second: Ply Time Eval Nodes Principal-Variation 6703 <second: 1. 60 0 29 Nc3 6703 <second: 2. 53 0 82 Nc3 Nc6 Nf3 6703 <second: 3. 53 0 121 Nc3 Nc6 Nf3 6703 <second: 4. 25 0 7078 d4 exd4 Qxd4 Nc6 Qd5 6703 <second: 5. 32 0 28668 Nf3 Nc6 Nc3 Nf6 d4 6703 <first : Stop pondering... 6703 <first : 6703 <first : 6703 <first : Time left: 295.00 sec. 6703 <first : Moves left: 40 6703 <first : Time per move: 7.38 sec. 6703 <first : 6703 <first : 0 0 0 0 (Nf3 81%, Bc4 10%, Nc3 3%, d4 3%, f4 3%) 6703 <first : 6703 <first : move g1f3 6703 >second: time 29967 otim 29990 6703 >second: g1f3 6828 <first : 6828 <first : Start pondering... 6828 <first : 6828 <first : 1 -4 0 38 2. ... Nc6 6828 <first : 2 12 0 651 2. ... d5 3. d4 Bb4+ 4. c3 6828 <first : 3 6 0 3009 2. ... d5 3. d4 Nf6 4. Bb5+ c6 6828 <second: Root = -10, Phase = 1 6828 <second: Time = 11.16, Max = 44.65, Left = 300.00, Moves = 35 6828 <second: Ply Time Eval Nodes Principal-Variation 6828 <second: 1. 40 0 29 Nc3 6828 <first : 4 24 3 15317 2. ... Nc6 3. Bc4 Nf6 4. Nc3 6828 <first : 5 10 7 41406 2. ... Nc6 3. d4 exd4 4. Nxd4 Be7 6828 <second: 2. 32 0 128 Nf3 Nc6 6828 <second: 3. 32 0 157 Nf3 Nc6 6828 <second: 4. 32 0 186 Nf3 Nc6 6828 <second: 5. 32 0 433 Nf3 Nc6 6828 <second: Root = -10, Phase = 1 6828 <second: Time = 11.16, Max = 44.65, Left = 300.00, Moves = 35 6828 <second: Ply Time Eval Nodes Principal-Variation 6828 <second: 1. 40 0 29 Nc3 6828 <second: 2. 32 0 116 Nf3 Nc6 6828 <second: 3. 32 0 145 Nf3 Nc6 6828 <second: 4. 32 0 174 Nf3 Nc6 6828 <second: 5. 32 0 203 Nf3 Nc6 6828 <second: 1. g1f3 6828 <second: Search time bonus near book 6828 <second: Root = -33, Phase = 1 6828 <second: Time = 11.15, Max = 44.60, Left = 299.67, Moves = 35 6828 <second: Ply Time Eval Nodes Principal-Variation 6828 <second: MoveLimit is 35 6828 <second: TimeLimit is 299.670013 6828 <second: 2. ... b8c6 Interrupting first 6828 >first : time 29990 otim 29954 6828 >first : b8c6 6953 <second: My move is: b8c6 6953 <second: Root = -17, Phase = 1 6953 <second: Time = 11.15, Max = 44.60, Left = 300.00, Moves = 35 6953 <second: Ply Time Eval Nodes Principal-Variation 6953 <second: 1. 33 0 28 Nc3 6953 <second: 2. 16 0 88 d4 exd4 Nxd4 Nxd4 6953 <second: 3. 25 0 474 Bc4 Nf6 Nc3 6953 <second: 4. 16 0 1060 d4 exd4 Nxd4 Nxd4 6953 <second: 5. 40 0 17998 d4 exd4 Nxd4 Nf6 6953 <first : Stop pondering...

by **Vladimir Medvedev** » 17 Jul 2006, 14:15

Fixed (?) version is available from the same place, http://greko.chess.googlepages.com

by **Volker Pittlik** » 17 Jul 2006, 14:29

Vladimir Medvedev wrote:I tried to fix the bug with pondering. Now it works, at least on my machine under WinBoard 4.2.6 and Arena.

...

Confirmed

! Pondering is also working under Xboard on Linux.

Volker

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