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Subject: EGTB disadvantage for solving probs quick

Author: Vincent Diepeveen

Date: 10:32:01 12/04/00


Hello here a nightmare scenario when using EGTB,
for DIEP that's position #4 from bs2830 testset.

Wonder how other progs do with and without egtb on this
position. Of course the real problem is that this problem
is like a 17 ply problem as there are 5 ply to see then
12 checks and it's a stalemate.

without egtb it finds by accident the right move
quite quickly:

Found at most 0 pieces EGTB
  Proces 1 starting initialisation!
  Proces 1 starting SearchSMP!
Took 0.09 seconds to start all 1 other processes
anal
Analysis mode is on
Process 1: engineflags=0 msk=1
process 0: engineflags = 0 denktime=10000000 maxtime=10000000
00:00 4 (0) 1 -2.48 d7-d8Q Kc7xd8
00:00 48 (0) 1 -2.48 Nf5-e3
00:00 344 (0) 2 -2.71 Nf5-e3 Qf6-c3
++ d7-d8
00:00 351 (0) 2 -2.48 d7-d8Q Kc7xd8
00:00 672 (0) 3 -5.59 d7-d8Q Kc7xd8 Re7-e4 Qf6xf5 Kb1xb2
++ f5-e3
00:00 1986 (203) 3 -2.84 Nf5-e3 Qf6-d4 Ne3-g2
00:00 4064 (203) 4 -2.86 Nf5-e3 Qf6-d4 d7-d8Q Kc7xd8
00:00 7421 (523) 5 -3.27 Nf5-e3 Qf6-d4 d7-d8Q Kc7xd8 Re7-e6 Qd4xd3 Kb1xb2
00:00 16089 (1156) 6 -4.90 Nf5-e3 Kc7-d8 Re7-e8 Kd8xd7 Re8-a8 Qf6-f3 Ra8-a7 Kd7-
e8 Ne3-g4 Qf3xg4 Kb1xb2
00:01 34606 (3595) 7 -5.97 Nf5-e3 Kc7-d8 Re7-h7 Qf6-c3 Rh7-h1 Qc3xd3 Kb1xb2 Qd3-
d4 Kb2-a3 Qd4xe3
++ d7-d8
00:01 38199 (3622) 7 -5.74 d7-d8Q Kc7xd8 Re7-e4 Qf6xf5 Kb1xb2 Qf5-d5 Kb2-c3
++ e7-e4
00:01 69614 (13138) 7 -5.11 Re7-e4 Qf6xf5 Kb1xb2 Qf5-d5 Re4-c4 Kc7xd7 Kb2xb3 Kd7
-e6
00:01 94341 (13885) 8 -5.14 Re7-e4 Qf6xf5 Kb1xb2 Qf5-d5 Re4-c4 Kc7xd7 Rc4-c3 Kd7
-d6 Rc3xb3
00:02 137922 (14799) 9 -5.24 Re7-e4 Qf6xf5 Kb1xb2 Qf5-d5 Re4-c4 Kc7xd7 Rc4-c3 Qd
5-d4 Kb2xb3 Kd7-e6
00:04 272255 (28819) 10 -5.04 Re7-e4 Qf6xf5 Kb1xb2 Qf5-b5 Re4-c4 Kc7xd7 Rc4-c3 Q
b5-b4 Rc3xb3 Qb4-d2 Kb2-a3 Qd2-c2
00:08 646141 (64755) 11 -5.52 Re7-e4 Qf6-a6 d7-d8Q Kc7xd8 Re4-d4 Kd8-e8 Nf5-d6 K
e8-f8 Rd4-f4 Kf8-g8 Rf4-g4 Kg8-h7 Kb1xb2 Qa6xd6 Kb2-c3
++ f5-d4
00:28 2458279 (670662) 12 -6.73 Re7-e4 Qf6-a6 d7-d8Q Kc7xd8 Re4-d4 Kd8-e8 Nf5-d6
 Ke8-e7 Nd6-f5 Ke7-f8 Rd4-d8 Kf8-f7 Rd8-d7 Kf7-e8 Rd7-e7 Ke8-d8 Kb1xb2 Qa6-a2 Kb
2-c3 b3-b2 Re7-h7 b2-b1Q Rh7-e7
++ f5-d4
01:31 8584391 (2441345) 12 -5.26 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-c
8 Kc7-b6 Rc8-b8 Kb6-c5 Rb8xb3 Kc5-d5 Kb1-a2 Qd4-a4 Ka2xb2 Kd5-d4
01:46 10015648 (2876483) 13 -5.26 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-
c8 Kc7-b6 Rc8-b8 Kb6-c5 Rb8xb3 Kc5-d5 Kb1-a2 Qd4-f6 Ka2-b1 Qf6-f1 Kb1xb2 Qf1-d1

02:16 12914303 (3235142) 14 -4.66 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-
c8 Kc7-b6 Rc8-b8 Kb6-c5 Rb8-c8 Kc5-b5 Rc8-b8 Kb5-a6 Rb8-a8 Ka6-b7 Ra8-b8 Kb7-c6
Rb8-c8 Kc6-b7 Rc8-b8
03:12 18248796 (3419808) 15 -4.58 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-
c8 Kc7-b6 Rc8-b8 Kb6-c5 Rb8-c8 Kc5-b5 Rc8-b8 Kb5-a6 Rb8-a8 Ka6-b7 Ra8-b8 Kb7-c6
Rb8-c8 Kc6-b7 Rc8-b8
07:34 43579630 (7501954) 16 -1.01 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-
c8 Kc7-b6 Rc8-b8 Kb6-c5 Rb8-c8 Kc5-b5 Rc8-b8 Kb5-a6 Rb8-a8 Ka6-b7 Ra8-b8 Kb7-c6
Rb8-c8 Kc6-b7 Rc8-b8

fen
Open a Forsythe File fen\bs2830.fen
Line number of fen\bs2830.fen ?
4
 # move freq games  score*2 learn ==> huge cache
       D I E P  2.00

black timeleft=27:46.40.00
 - = - = - = - =   ...       1    ...
 = - k O R - = -   ...       2    ...
 - = - = - q - =   ...       3    ...
 = - = - = N = -   ...       4    ...
 - = - = - = - =   ...       5    ...
 = o = O = - = -   ...       6    ...
 - o - = - = - =   ...       7    ...
 = K = - = - = -   ...       8    ...
white timeleft=27:46.40.00
white to move               type 'help' for command overview

clean
Clearing all Hashtables...
anal
Analysis mode is on
Process 1: engineflags=0 msk=1
process 0: engineflags = 0 denktime=10000000 maxtime=10000000
00:00 4 (0) 1 -2.48 d7-d8Q Kc7xd8
00:00 48 (0) 1 -2.48 Nf5-e3
00:00 348 (0) 2 -2.71 Nf5-e3 Qf6-c3
++ d7-d8
00:00 355 (0) 2 -2.48 d7-d8Q Kc7xd8
00:00 669 (0) 3 -5.59 d7-d8Q Kc7xd8 Re7-e4 Qf6xf5 Kb1xb2
++ f5-e3
00:01 2078 (299) 3 -2.84 Nf5-e3 Qf6-d4 Ne3-g2
00:01 4177 (299) 4 -2.86 Nf5-e3 Qf6-d4 d7-d8Q Kc7xd8
00:02 7507 (651) 5 -3.27 Nf5-e3 Qf6-d4 d7-d8Q Kc7xd8 Re7-e6 Qd4xd3 Kb1xb2
00:05 16959 (2422) 6 -5.39 Nf5-e3 Kc7-d8 Re7-e8 Kd8xd7 Re8-a8 Qf6-d4 Ne3-g4 Qd4x
g4 Kb1xb2
00:11 41024 (5840) 7 -5.97 Nf5-e3 Kc7-d8 Re7-h7 Qf6-c3 Rh7-h1 Qc3xd3 Kb1xb2 Qd3-
d4 Kb2-a3 Qd4xe3
00:19 67725 (8880) 8 -7.06 Nf5-e3 Kc7-d8 Ne3-d5 Qf6-f2 Re7-e8 Kd8xd7 Nd5-f6 Qf2x
f6 Re8-e1
00:35 111977 (12259) 9 -7.46 Nf5-e3 Kc7-d8 Ne3-d5 Qf6-f2 Re7-e8 Kd8xd7 Nd5-f6 Qf
2xf6 Re8-e1 Qf6-c3
++ d7-d8
01:07 227171 (30834) 10 -9.26 Nf5-e3 Kc7-d8 Re7-e8 Kd8xd7 Re8-b8 Qf6-c3 Rb8-b7 K
d7-c8 Rb7-c7 Qc3xc7 Ne3-c4 Qc7-g7
02:08 483382 (107667) 11 -13.38 Nf5-e3 Kc7-d8 Re7-e8 Kd8xd7 Re8-b8 Qf6-f2 Rb8-b7
 Kd7-c6 Rb7-b8 Qf2-e1 Kb1xb2 Qe1-d2 Kb2-a3 Qd2-a2 Ka3-b4 b3-b2 Rb8-c8 Kc6-d7 Rc8
-d8 Kd7xd8
03:12 828835 (160776) 12 -MATE32 Nf5-e3 Kc7-d8 Re7-e4 Qf6-c3 Re4-c4 Qc3xd3 Kb1xb
2 Qd3xe3 Rc4-c3 Qe3-d2 Kb2xb3
++ e7-e8
05:07 1310174 (266867) 12 -MATE33 Re7-e8 Kc7xd7 Re8-e7 Kd7-d8 Re7-b7 Qf6xf5 Rb7x
b3 Qf5-e5 Rb3xb2
++ e7-e4
07:38 2048907 (424197) 12 -MATE39 Re7-e4 Qf6xf5 Kb1xb2 Qf5xd7 Kb2-c3 b3-b2 Re4-c
4 Kc7-d8 Rc4-b4 Qd7-d6 Rb4xb2
++ f5-d4
state
State check of all 2 processors:
go=true  ttl=4894467 abrtd=663943 q=0 nre=0 rms=-499919 local=88257
Locks: queue=0 nprctat=0 blocks=0 hash (t,e,p)=0,0,0 root=0
Px  dp_rl dp_q dp_mm abort mmlock mnr DBG  wfm   wfs
 0   49    24   48     0    false 23    -1 false true
 1   55    32   54     0    false 26    -1 false false
Deepest lines seen:
e7e8 c7d7 e8e7 d7c8 e7e8 c8c7 f5e7 f6f1 b1b2 f1f2 b2a3 f2c5 a3b2 c5d4 b2a3 d4a1
a3b4 a1d4 b4a5 d4e5 a5b4 b3b2 e8c8 c7b7 c8c5 b2b1 b4c4 e5f4 d3d4 f4c1 c4d5 c1g5
e7f5 g5f5 d5d6 f5f6 d6d5 b1f5 d5c4 f5e6 d4d5 e6e2 c4b3 f6b2 b3a4 b2a2 a4b4 e2b2

e7e4 f6f5 e4c4 c7d8 c4d4 f5f1 b1b2 f1f2 b2c3 b3b2 d4g4 b2b1 g4g8 d8e7 d7d8 e7e6
d8e8 e6f5 e8e4 f5f6 e4c6 f6f7 g8g4 f2b2 c3c4 b2b4 c4d5 b4a5 c6c5 a5a8 c5c6 a8a2
g4c4 b1d3 d5c5 a2a5 c6b5 a5c7 c5b4 c7e7 c4c5 d3b1 b4c3 b1c1 c3b4 c1b2 b4a4 b2d4
c5c4 d4a7 b5a5 a7d7 a5b5 d7d1
Current Line:
f5d4 f6g5 d7d8 c7d8 d4c6 d8c8 c6a7 c8b8 b1b2 g5g2 b2c3 g2c2 c3d4 c2f2 d4d5 f2f5
d5c6 f5f3 c6d7 f3d5 d7e8 d5h5 e7f7
f5d4 f6g5 d7d8 c7d8 d4c6 d8c8 c6a7 c8b8 b1b2 g5d2 b2a3 d2c1 a3a4 b3b2 e7e8 b8c7
e8e7 c7d8 a7b5 b2b1 e7c7 c1d1 c7c2 d1c2 a4a3 c2d3

18:15 5002130 (677589) 12 -13.65 Nf5-d4 Qf6xd4 d7-d8Q Kc7xd8 Re7-e8 Kd8-c7 Re8-c
8 Kc7-b6 Rc8-b8 Kb6-a7 Rb8-a8 Ka7-b7 Ra8-b8 Kb7-a7
state
State check of all 2 processors:
go=true  ttl=5038672 abrtd=683652 q=0 nre=0 rms=-13732 local=47830
Locks: queue=0 nprctat=0 blocks=0 hash (t,e,p)=0,0,0 root=0
Px  dp_rl dp_q dp_mm abort mmlock mnr DBG  wfm   wfs
 0   49    24   48     0    false 16    -1 false true
 1   55    32   54     0    false 30    -1 false false
Deepest lines seen:
e7e8 c7d7 e8e7 d7c8 e7e8 c8c7 f5e7 f6f1 b1b2 f1f2 b2a3 f2c5 a3b2 c5d4 b2a3 d4a1
a3b4 a1d4 b4a5 d4e5 a5b4 b3b2 e8c8 c7b7 c8c5 b2b1 b4c4 e5f4 d3d4 f4c1 c4d5 c1g5
e7f5 g5f5 d5d6 f5f6 d6d5 b1f5 d5c4 f5e6 d4d5 e6e2 c4b3 f6b2 b3a4 b2a2 a4b4 e2b2

e7e4 f6f5 e4c4 c7d8 c4d4 f5f1 b1b2 f1f2 b2c3 b3b2 d4g4 b2b1 g4g8 d8e7 d7d8 e7e6
d8e8 e6f5 e8e4 f5f6 e4c6 f6f7 g8g4 f2b2 c3c4 b2b4 c4d5 b4a5 c6c5 a5a8 c5c6 a8a2
g4c4 b1d3 d5c5 a2a5 c6b5 a5c7 c5b4 c7e7 c4c5 d3b1 b4c3 b1c1 c3b4 c1b2 b4a4 b2d4
c5c4 d4a7 b5a5 a7d7 a5b5 d7d1
Current Line:
f5d4 f6a6 b1b2 a6a2 b2c3 a2a1 c3c4 a1c1 c4b5 b3b2 d7d8 c7d8 d4b3 b2b1 e7e8 d8e8

f5d4 f6f1 b1b2 f1d3 d7d8 c7d8 d4c6 d8c8 e7e8 c8c7 c6d8 d3d2 b2a3 b3b2 e8e7 c7d6
e7e6 d6c5 e6c6 c5d4 c6c7 b2b1 d8c6 d4c5 c6a7 c5b6 c7c6 b6a7

quit
Waiting for other processes to end
  Proces 1 quitted



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

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