[computer-go] More statistics and conclusions from CGOS data

[Gunnar Farnebäck]

Don Dailey wrote:
 > Here is the entire tree, where I drop nodes if they have less than 500
 > samples.  These are games between 1700+ players who are within 100 ELO
 > of each others rating.
 >
 >
 > E5  49.1%  19630
 >  |  C4  49.6%  5894
 >  |   |  C5  49.9%  1558
 >  |   |   |  B5  54.7%  788
 >  |   |   |   |  C6  48.4%  566
 >  |   |  C6  51.3%  1106
 >  |   |  D4  53.5%  737
 >  |   |   |  C5  52.0%  765
 >  |   |  E3  50.6%  678
 >  |   |  D3  51.9%  620
 >  |  C5  56.0%  4131
 >  |   |  D4  48.4%  1226
 >  |   |   |  C4  52.0%  765
 >  |   |  C4  47.6%  710
 >  |   |  D3  39.0%  605
 >  |  C3  54.2%  3702
 >  |   |  C5  50.1%  1532
 >  |   |  E7  50.3%  557
 >  |  D4  50.5%  3634
 >  |   |  D5  52.3%  2730
 >  |   |   |  C5  37.3%  585
 >  |   |   |  E4  49.0%  582
 >  |  D5  39.3%  1688
 >  |   |  D4  63.0%  1253
 >  |   |  E4  58.4%  611
 >  |   |   |  D4  49.0%  582
 > D5  47.9%  8405
 >  |  F5  56.1%  2465
 >  |   |  F4  47.2%  895
 >  |   |   |  G4  54.1%  512
 >  |   |  E4  39.6%  528
 >  |  F4  52.9%  1516
 >  |   |  F5  47.4%  529
 >  |  E5  50.8%  758
 >  |   |  D4  45.9%  848
 >  |   |  E4  50.4%  544
 >  |  G4  51.9%  698
 >  |  E4  49.1%  696
 >  |   |  E5  58.4%  611
 >  |   |   |  D4  49.0%  582
 >  |   |  E6  39.6%  528
 >  |  F3  49.5%  553
 > D4  47.4%  7963
 >  |  E6  51.4%  1466
 >  |  E5  55.2%  1355
 >  |   |  D5  45.9%  848
 >  |  F6  53.1%  1019
 >  |  F7  51.3%  967
 >  |  D6  58.7%  652
 >  |  G7  58.5%  535
 > C4  44.6%  3206
 > C5  47.9%  2270
 > C3  40.3%  1438

Interesting. If I do the same with MonteGNU's fuseki database, which
is based on online learning from own CGOS games, and cut off at 200
samples I get:

E5  8101
  |  C3  2950
  |   |  G5  1798
  |   |   |  G3  1145 (A)
  |   |   |   |  C5  403
  |   |   |  C7  310
  |   |  E3  622
  |   |   |  C7  1145 (transposition of A)
  |  C4  2249
  |   |  C5  714
  |   |   |  B5  459
  |   |   |   |  C6  403
  |   |  D4  443
  |   |   |  C5  277 (B)
  |   |  C6  351
  |   |  D6  286
  |   |  E3  239
  |  C5  1708
  |   |  D4  612
  |   |   |  C4  277 (transposition of B)
  |   |  C4  343
  |   |  C3  297
  |  D4  864
  |   |  E4  698
  |   |   |  D5  205
  |  D5  295
  |   |  D4  216
D4  1608
  |  E5  681
  |   |  E4  520
  |   |   |  D5  351
  |   |   |   |  C5  212
  |  F6  279
  |  F5  250
D5  1521
  |  F5  508
  |   |  F4  190
  |  F4  320
C4  585
C5  391
(C3  149)

/Gunnar