Tweak of knight PSQT and mobility bonuses

STC
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 16906 W: 3745 L: 3516 D: 9645
http://tests.stockfishchess.org/tests/view/5bd306a40ebc595e0ae1e144

LTC
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 62779 W: 10249 L: 9901 D: 42629
http://tests.stockfishchess.org/tests/view/5bd3188f0ebc595e0ae1e296

Bench 3166402

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index e36c19c6ef1148ebb993b6ed025468f9920dc851..8a21b0bb5b241685995a17a9cb913e516c70e694 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -102,8 +102,8 @@ namespace {
   // MobilityBonus[PieceType-2][attacked] contains bonuses for middle and end game,
   // indexed by piece type and number of attacked squares in the mobility area.
   constexpr Score MobilityBonus[][32] = {
-    { S(-75,-76), S(-57,-54), S( -9,-28), S( -2,-10), S(  6,  5), S( 14, 12), // Knights
-      S( 22, 26), S( 29, 29), S( 36, 29) },
+    { S(-62,-81), S(-53,-56), S(-12,-30), S( -4,-14), S(  3,  8), S( 13, 15), // Knights
+      S( 22, 23), S( 28, 27), S( 33, 33) },
     { S(-48,-59), S(-20,-23), S( 16, -3), S( 26, 13), S( 38, 24), S( 51, 42), // Bishops
       S( 55, 54), S( 63, 57), S( 63, 65), S( 68, 73), S( 81, 78), S( 81, 86),
       S( 91, 88), S( 98, 97) },

diff --git a/src/psqt.cpp b/src/psqt.cpp
index d8119306f097b93a5ad1bf3df4303ee195cf8b09..934f98986c22ff2b20fcb3b9c1c999ed59dd15b0 100644 (file)
--- a/src/psqt.cpp
+++ b/src/psqt.cpp
@@ -47,14 +47,14 @@ constexpr Score Bonus[][RANK_NB][int(FILE_NB) / 2] = {
    { S( -2, 1), S( 20,-12), S(-10, 6), S(-2,25) }
   },
   { // Knight
-   { S(-161,-105), S(-96,-82), S(-80,-46), S(-73,-14) },
-   { S( -83, -69), S(-43,-54), S(-21,-17), S(-10,  9) },
-   { S( -71, -50), S(-22,-39), S(  0, -7), S(  9, 28) },
-   { S( -25, -41), S( 18,-25), S( 43,  6), S( 47, 38) },
-   { S( -26, -46), S( 16,-25), S( 38,  3), S( 50, 40) },
-   { S( -11, -54), S( 37,-38), S( 56, -7), S( 65, 27) },
-   { S( -63, -65), S(-19,-50), S(  5,-24), S( 14, 13) },
-   { S(-195,-109), S(-67,-89), S(-42,-50), S(-29,-13) }
+   { S(-169,-105), S(-96,-74), S(-80,-46), S(-79,-18) },
+   { S( -79, -70), S(-39,-56), S(-24,-15), S( -9,  6) },
+   { S( -64, -38), S(-20,-33), S(  4, -5), S( 19, 27) },
+   { S( -28, -36), S(  5,  0), S( 41, 13), S( 47, 34) },
+   { S( -29, -41), S( 13,-20), S( 42,  4), S( 52, 35) },
+   { S( -11, -51), S( 28,-38), S( 63,-17), S( 55, 19) },
+   { S( -67, -64), S(-21,-45), S(  6,-37), S( 37, 16) },
+   { S(-200, -98), S(-80,-89), S(-53,-53), S(-32,-16) }
   },
   { // Bishop
    { S(-49,-58), S(- 7,-31), S(-10,-37), S(-34,-19) },