Add custom schema 10 - individual buckets for first rank, and the res…

…t in half-files (lynx-chess/Lynx#893)
lynx-chess · Aug 4, 2024 · 22c9be7 · 22c9be7
1 parent c4d8844
commit 22c9be7
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diff --git a/src/engines/lynx_base.hpp b/src/engines/lynx_base.hpp
@@ -1,3 +1,14 @@
 #pragma once
 
-constexpr static int PSQTBucketCount = 16;
+constexpr static int PSQTBucketCount = 24;
+
+constexpr static std::array<int, 64> PSQTBucketLayout = {
+    16, 17, 18, 19, 20, 21, 22, 23,
+    16, 17, 18, 19, 20, 21, 22, 23,
+    16, 17, 18, 19, 20, 21, 22, 23,
+    16, 17, 18, 19, 20, 21, 22, 23,
+    8, 9, 10, 11, 12, 13, 14, 15,
+    8, 9, 10, 11, 12, 13, 14, 15,
+    8, 9, 10, 11, 12, 13, 14, 15,
+    0, 1, 2, 3, 4, 5, 6, 7, //
+};
diff --git a/src/engines/lynx_constants.hpp b/src/engines/lynx_constants.hpp
@@ -34,17 +34,6 @@ std::array<int, 6> phaseValues = {0, 1, 1, 2, 4, 0};
 
 constexpr static int EvalNormalizationCoefficient = 90;
 
-constexpr static std::array<int, 64> PSQTBucketLayout = {
-    8, 9, 10, 11, 12, 13, 14, 15,
-    8, 9, 10, 11, 12, 13, 14, 15,
-    8, 9, 10, 11, 12, 13, 14, 15,
-    8, 9, 10, 11, 12, 13, 14, 15,
-    0, 1, 2, 3, 4, 5, 6, 7,
-    0, 1, 2, 3, 4, 5, 6, 7,
-    0, 1, 2, 3, 4, 5, 6, 7,
-    0, 1, 2, 3, 4, 5, 6, 7, //
-};
-
 constexpr static std::array<std::array<std::array<int, 64>, PSQTBucketCount>, 6> MiddleGamePositionalWhiteTables = {
     MiddleGamePawnTable,
     MiddleGameKnightTable,