Increase passed bonus for having more pieces

R-Peleg · mcostalba · commit fc17d0de7748 · 2013-09-13T18:08:22.000+02:00
Passed both short TC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 36463 W: 7575 L: 7365 D: 21523

And long TC:
LLR: 2.97 (-2.94,2.94) [0.00,6.00]
Total: 2953 W: 564 L: 446 D: 1943

bench: 3846852
diff --git a/src/evaluate.cpp b/src/evaluate.cpp
@@ -872,9 +872,16 @@ Value do_evaluate(const Position& pos, Value& margin) {
         {
             if (pos.non_pawn_material(Them) <= KnightValueMg)
                 ebonus += ebonus / 4;
+
             else if (pos.pieces(Them, ROOK, QUEEN))
                 ebonus -= ebonus / 4;
         }
+
+        // Increase the bonus if we have more non-pawn pieces
+        if (pos.count<ALL_PIECES>(  Us) - pos.count<PAWN>(  Us) >
+            pos.count<ALL_PIECES>(Them) - pos.count<PAWN>(Them))
+            ebonus += ebonus / 4;
+
         score += make_score(mbonus, ebonus);
 
     }

Original file line number	Diff line number	Diff line change
`@@ -872,9 +872,16 @@ Value do_evaluate(const Position& pos, Value& margin) {`
`872`	`872`	`{`
`873`	`873`	`if (pos.non_pawn_material(Them) <= KnightValueMg)`
`874`	`874`	`ebonus += ebonus / 4;`
	`875`	`+`
`875`	`876`	`else if (pos.pieces(Them, ROOK, QUEEN))`
`876`	`877`	`ebonus -= ebonus / 4;`
`877`	`878`	`}`
	`879`	`+`
	`880`	`+ // Increase the bonus if we have more non-pawn pieces`
	`881`	`+ if (pos.count<ALL_PIECES>( Us) - pos.count<PAWN>( Us) >`
	`882`	`+ pos.count<ALL_PIECES>(Them) - pos.count<PAWN>(Them))`
	`883`	`+ ebonus += ebonus / 4;`
	`884`	`+`
`878`	`885`	`score += make_score(mbonus, ebonus);`
`879`	`886`
`880`	`887`	`}`