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Release v0.6.0 - #1172

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Aug 16, 2026
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Release v0.6.0#1172
brunocodutra merged 1 commit into
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Fit WDL model based on material.
Initial objective function: 0.3674288551711345
Final objective function: 0.3674031101959611
Optimization terminated successfully.
const int NormalizeToPawnValue = 78;
Corresponding spread = 21;
Corresponding normalized spread = 0.27521742905444135;
Draw rate at 0.0 eval at material 58 = 0.948512917980533;
Parameters in internal value units:
p_a = ((-66.038 * x / 58 + 178.968) * x / 58 + -166.012) * x / 58 + 130.586
p_b = ((-10.192 * x / 58 + 39.104) * x / 58 + -33.235) * x / 58 + 25.653
constexpr double as[] = {-66.03804211, 178.96795037, -166.01202892, 130.58558524};
constexpr double bs[] = {-10.19171687, 39.10419276, -33.23518052, 25.65300890};

--------------------------------------------------
Results of dev vs v0.5.2 (40+0.4, 1t, 256MB, UHO_Lichess_4852_v1.epd):
Elo: 55.04 +/- 6.02, nElo: 116.39 +/- 12.52
LOS: 100.00 %, DrawRatio: 47.97 %, PairsRatio: 3.97
Games: 2960, Wins: 962, Losses: 497, Draws: 1501, Points: 1712.5 (57.85 %)
Ptnml(0-2): [2, 153, 710, 608, 7], WL/DD Ratio: 0.92
--------------------------------------------------

Fit WDL model based on material.
Initial objective function:  0.3674288551711345
Final objective function:    0.3674031101959611
Optimization terminated successfully.
const int NormalizeToPawnValue = 78;
Corresponding spread = 21;
Corresponding normalized spread = 0.27521742905444135;
Draw rate at 0.0 eval at material 58 = 0.948512917980533;
Parameters in internal value units:
p_a = ((-66.038 * x / 58 + 178.968) * x / 58 + -166.012) * x / 58 + 130.586
p_b = ((-10.192 * x / 58 + 39.104) * x / 58 + -33.235) * x / 58 + 25.653
    constexpr double as[] = {-66.03804211, 178.96795037, -166.01202892, 130.58558524};
    constexpr double bs[] = {-10.19171687, 39.10419276, -33.23518052, 25.65300890};
@brunocodutra
brunocodutra enabled auto-merge (rebase) August 16, 2026 08:38
@brunocodutra
brunocodutra merged commit 16ef3f4 into master Aug 16, 2026
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@brunocodutra
brunocodutra deleted the release branch August 16, 2026 08:56
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codecov Bot commented Aug 16, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.02%. Comparing base (c237dbe) to head (b039292).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files
@@            Coverage Diff             @@
##           master    #1172      +/-   ##
==========================================
- Coverage   82.19%   82.02%   -0.18%     
==========================================
  Files          90       90              
  Lines        8056     8056              
==========================================
- Hits         6622     6608      -14     
- Misses       1434     1448      +14     

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