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Subject: Re: JAFM's interesting pawn endgame test position:

Author: Dann Corbit

Date: 12:10:02 10/01/01

Crafty takes much longer to find it [not until ply 21 at 3 and a half minutes]:

Crafty v18.11

White(1): st 999
search time set to 999.00.
White(1): epdpfga ptest.epd ptest.out
PFGA: EPD record: 1
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 16:39 (16:39)
         nss  depth   time  score   variation (1)
               11     2.32  -0.13   1. Ka5 h5 2. Ka6 Kc5 3. h3 Kc4 4. Kxa7
                                    Kxb5 5. Kb7 Kc4 6. Kc7
               11->   2.65  -0.13   1. Ka5 h5 2. Ka6 Kc5 3. h3 Kc4 4. Kxa7
                                    Kxb5 5. Kb7 Kc4 6. Kc7
               12     3.60  -0.32   1. Ka5 h5 2. Ka6 Kc5 3. g3 g4 4. Ka5
                                    Kd4 5. Ka6 Kc4 6. b6 axb6 7. Kxb6
               12     4.21  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. b6 axb6 7. Kxb6
               12->   4.40  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. b6 axb6 7. Kxb6
               13     4.79  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. Kxa7 Kxb5 7.
                                    Kb7
               13->   7.16  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. Kxa7 Kxb5 7.
                                    Kb7
               14     8.30  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. b6 axb6 7. Kxb6
                                    Kc4 8. Kc7
               14->   9.13  -0.03   1. g4 Kc5 2. Ka5 Kd4 3. Ka6 Kc4 4.
                                    Ka5 Kc5 5. Ka6 Kb4 6. b6 axb6 7. Kxb6
                                    Kc4 8. Kc7
               15    10.24   0.00   1. g4 Kc5 2. h3 Kc4 3. Kxa7 Kxb5 4.
                                    Kb7 Kc4 5. Kc6 Kd3 6. Kd6 Ke3 7. Ke6
                                    Kf3 8. Kf6
               15->  12.32   0.00   1. g4 Kc5 2. h3 Kc4 3. Kxa7 Kxb5 4.
                                    Kb7 Kc4 5. Kc6 Kd3 6. Kd6 Ke3 7. Ke6
                                    Kf3 8. Kf6
               16    13.50   0.00   1. g4 Kc5 2. h3 Kc4 3. Kxa7 Kxb5 4.
                                    Kb7 Kc4 5. Kc6 Kd3 6. Kd6 Ke3 7. Ke6
                                    Kf3 8. Kf6 Kg3
               16->  14.62   0.00   1. g4 Kc5 2. h3 Kc4 3. Kxa7 Kxb5 4.
                                    Kb7 Kc4 5. Kc6 Kd3 6. Kd6 Ke3 7. Ke6
                                    Kf3 8. Kf6 Kg3
               17    19.52   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               17->  21.77   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               18    24.92   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               18->  26.60   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               19    34.39   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               19->  39.52   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               20    46.54   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               20->   1:06   0.00   1. g4 Kc5 2. Ka5 Kc4 3. Ka6
               21     1:26     --   1. g4
               21     1:49  -9.27   1. g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. b6
                                    axb6+ 5. Kb5 Kc3 6. Kc6 b5 7. Kd5 b4
                                    8. Ke4 b3 9. Kf5 b2 10. Kg6 b1=Q+ 11.
                                    Kxh6 Qc1 12. Kg6 Qf4
               21     2:45  -2.39   1. g3 Kc5 2. Ka5 h5 3. Ka6 g4 4. Ka5
                                    Kc4 5. Ka4 Kd4 6. Kb4 Kd5 7. Ka5 Kc5
                                    <HT>
               21     3:28  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               21->   3:28  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               22     3:32  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               22->   3:37  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               23     3:43  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               23->   3:49  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               24     4:00  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               24->   4:11  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               25     4:35  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               25->   5:29  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               26     6:21  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               26->   7:20  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               27     7:58  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <EGTB>
               27->   9:11  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <EGTB>
               28    10:18  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               28->  12:30  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <HT>
               29    16:03  -0.01   1. h3 Kc5 2. Kxa7 Kxb5 3. Kb7 Kc4 4.
                                    Kc6 Kd3 5. Kd6 Ke2 6. Ke6 Kf1 7. Kf5
                                    Kxg2 <EGTB>
              time=16:39  cpu=99%  mat=0  n=235309399  fh=87%  nps=235k
              ext-> chk=28947617 cap=685051 pp=655350 1rep=361221 mate=5526
              predicted=0  nodes=235309399  evals=64159299
              endgame tablebase-> probes done=528387  successful=528387
White(1):

Re: JAFM's interesting pawn endgame test position: Bruce Moreland 12:18:44 10/01/01
- Re: JAFM's interesting pawn endgame test position: Dann Corbit 12:30:41 10/01/01
  - Re: JAFM's interesting pawn endgame test position: Bruce Moreland 18:20:08 10/01/01
    - Re: JAFM's interesting pawn endgame test position: Peter McKenzie 20:20:06 10/01/01
    - Re: JAFM's interesting pawn endgame test position: Dann Corbit 18:39:41 10/01/01
      - Re: JAFM's interesting pawn endgame test position: Dann Corbit 18:45:44 10/01/01
        
        Re: JAFM's interesting pawn endgame test position: Dave Gomboc 22:36:28 10/01/01
        
        Re: JAFM's interesting pawn endgame test position: Uri Blass 22:43:27 10/01/01
        
        Re: JAFM's interesting pawn endgame test position: Gian-Carlo Pascutto 00:33:42 10/02/01
        
        Re: JAFM's interesting pawn endgame test position: Bruce Moreland 01:45:20 10/02/01
        
        Re: JAFM's interesting pawn endgame test position: Uri Blass 01:14:00 10/02/01
  - Re: JAFM's interesting pawn endgame test position: [with picture] Dann Corbit 12:34:02 10/01/01
    - Re: JAFM's interesting pawn endgame test position: [with picture] Tim Foden 04:19:16 10/03/01

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