Fixed moveordering bug

Orbital-Web · Jul 19, 2023 · 7a8c557 · 7a8c557
1 parent 8941114
commit 7a8c557
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/README.md b/README.md
@@ -63,11 +63,11 @@ Raphael is an extension of `cge::GamePlayer` which will use a negamax search tre
 - [x] Material cost             (`v1.0.0+`)
 - [x] Piece-square tables       (`v1.0.0+`)
 - [ ] Midgame King safety
-- [ ] Endgame King proximity
+- [x] Endgame King proximity    (`v1.0.0+`)
 - [ ] Pawn structure
 
 **Move Ordering**
 - [x] Captures                  (`v1.0.0+`)
-- [x] Promotion                 (`v1.0.0+`)
+- [x] Promotions                (`v1.0.0+`)
 - [ ] Checks
-- [ ] Moving into attack
+- [ ] Moving into attacks
diff --git a/src/Raphael/Raphael_v1.0.0.hpp b/src/Raphael/Raphael_v1.0.0.hpp
@@ -171,7 +171,7 @@ class v1_0_0: public cge::GamePlayer {
 
         // enemy piece captured
         if (to!=12 && whiteturn==(to/6))
-            score += abs(PVAL::VALS[to] + PVAL::VALS[from]) + 13;  // small bias to encourage trades
+            score += abs(PVAL::VALS[to]) - abs(PVAL::VALS[from]) + 13;  // small bias to encourage trades
 
         // promotion
         if (move.typeOf()==chess::Move::PROMOTION)