Texel eval tuning and Tapered eval

[amanjpro]

No description provided.

[amanjpro]

So far, as commit 8c30f4c

Untuned Tapered eval:

vs Zahak 2.0.0,

Finished game 200 (zahak-darwin-amd64-latest vs zahak_next): 1/2-1/2 {Draw by 3-fold repetition}
Score of zahak_next vs zahak-darwin-amd64-latest: 81 - 54 - 65  [0.568] 200
...      zahak_next playing White: 40 - 28 - 32  [0.560] 100
...      zahak_next playing Black: 41 - 26 - 33  [0.575] 100
...      White vs Black: 66 - 69 - 65  [0.492] 200
Elo difference: 47.2 +/- 39.9, LOS: 99.0 %, DrawRatio: 32.5 %
Finished match

vs
Achilliees, Gopher-Check, Baisclicka:

Finished game 599 (zahak_next vs Achillees): 1-0 {White wins by adjudication}
Rank Name                          Elo     +/-   Games    Wins  Losses   Draws   Points   WWins  WLoss.  WDraws   BWins  BLoss.  BDraws
   0 zahak_next                    -22      25     600     224     262     114    281.0     128     112      60      96     150      54
   1 baislicka                      65      44     200     100      63      37    118.5      55      28      17      45      35      20
   2 Achillees                      21      44     200      88      76      36    106.0      56      32      12      32      44      24
   3 gopher_check                  -19      43     200      74      85      41     94.5      39      36      25      35      49      16

Finished match

vs Clever Girl (clever girl crashed):

Score of zahak_next vs clever-girl: 82 - 63 - 55  [0.547] 200
...      zahak_next playing White: 42 - 31 - 27  [0.555] 100
...      zahak_next playing Black: 40 - 32 - 28  [0.540] 100
...      White vs Black: 74 - 71 - 55  [0.507] 200
Elo difference: 33.1 +/- 41.3, LOS: 94.3 %, DrawRatio: 27.5 %
Finished match

[amanjpro]

With the latest commit 2f69a25, this is my current tests:

Tuned Tapered eval:

vs Zahak 2.0.0,

Score of zahak_next vs zahak-darwin-amd64-latest: 112 - 38 - 50  [0.685] 200
...      zahak_next playing White: 64 - 15 - 21  [0.745] 100
...      zahak_next playing Black: 48 - 23 - 29  [0.625] 100
...      White vs Black: 87 - 63 - 50  [0.560] 200
Elo difference: 135.0 +/- 43.9, LOS: 100.0 %, DrawRatio: 25.0 %
Finished match

vs
Achilliees, Gopher-Check, Baisclicka:

Rank Name                          Elo     +/-   Games    Wins  Losses   Draws   Points   WWins  WLoss.  WDraws   BWins  BLoss.  BDraws
   0 zahak_next                    137      26     600     347     122     131    412.5     180      64      56     167      58      75
   1 gopher_check                 -111      44     200      46     108      46     69.0      23      54      23      23      54      23
   2 Achillees                    -145      46     200      39     118      43     60.5      19      58      23      20      60      20
   3 baislicka                    -156      46     200      37     121      42     58.0      16      55      29      21      66      13

Finished match

vs Clever Girl (clever girl crashed):

Score of zahak_next vs clever-girl: 137 - 26 - 37  [0.777] 200
...      zahak_next playing White: 71 - 12 - 17  [0.795] 100
...      zahak_next playing Black: 66 - 14 - 20  [0.760] 100
...      White vs Black: 85 - 78 - 37  [0.517] 200
Elo difference: 217.3 +/- 50.1, LOS: 100.0 %, DrawRatio: 18.5 %
Finished match

Vice, Rustic

With Bayeselo

ResultSet>readpgn /Users/amanj/Documents/MyDocuments/Programming/zahak/src/github.com/zahak/zahak_games/tuned-evals-3.pgn
1000 game(s) loaded
ResultSet>elo
ResultSet-EloRating>mm
00:00:00,00
ResultSet-EloRating>exactdist
00:00:00,00
ResultSet-EloRating>ratings
Rank Name                       Rating   Δ     +    -     #     Σ    Σ%     W    L    D   W%    =%   OppR
---------------------------------------------------------------------------------------------------------
   1 zahak_next                  3227   0.0   17   17  1000  705.0  70.5  596  186  218  59.6  21.8  3075
   2 gopher_check                3115 111.9   35   36   200   69.0  34.5   46  108   46  23.0  23.0  3227
   3 zahak-darwin-amd64-latest   3095  20.4   35   36   200   63.0  31.5   38  112   50  19.0  25.0  3227
   4 Achillees                   3081  13.3   36   37   200   60.5  30.2   39  118   43  19.5  21.5  3227
   5 baislicka                   3070  11.6   36   38   200   58.0  29.0   37  121   42  18.5  21.0  3227
   6 clever-girl                 3013  56.8   38   41   200   44.5  22.2   26  137   37  13.0  18.5  3227
---------------------------------------------------------------------------------------------------------
  Δ = delta from the next higher rated opponent
  # = number of games played
  Σ = total score, 1 point for win, 1/2 point for draw

That shows an elo for Zahak around 2270-2340, which is at least 130 elo points ahead of whatever Zahak has now