Revert saving of null search value in TT

[stockfish] / src / value.h

diff --git a/src/value.h b/src/value.h
index 4b62027267847592c63ef4a50895dc5b292625e4..ed2bbb24ff9f5deac20cb6264b915c7297973a32 100644 (file)
--- a/src/value.h
+++ b/src/value.h
@@ -33,16 +33,14 @@
 ////
 
 enum ValueType {
-  VALUE_TYPE_NONE =  0,
+  VALUE_TYPE_NONE  = 0,
   VALUE_TYPE_UPPER = 1,  // Upper bound
   VALUE_TYPE_LOWER = 2,  // Lower bound
-  VALUE_TYPE_EXACT = 3,  // Exact score
   VALUE_TYPE_EVAL  = 4,  // Static evaluation value
-  VALUE_TYPE_NULL  = 8,  // Null search value
 
-  VALUE_TYPE_EV_UP = VALUE_TYPE_EVAL | VALUE_TYPE_UPPER,
-  VALUE_TYPE_EV_LO = VALUE_TYPE_EVAL | VALUE_TYPE_LOWER,
-  VALUE_TYPE_NS_LO = VALUE_TYPE_NULL | VALUE_TYPE_LOWER,
+  VALUE_TYPE_EXACT = VALUE_TYPE_UPPER | VALUE_TYPE_LOWER,
+  VALUE_TYPE_EV_UP = VALUE_TYPE_EVAL  | VALUE_TYPE_UPPER,
+  VALUE_TYPE_EV_LO = VALUE_TYPE_EVAL  | VALUE_TYPE_LOWER
 };