Merge pull request #97 from DeveloperPaul123/feature/lmr-tweak

bench: 3360896

Author: DeveloperPaul123

engine/src/lmr.rs

@@ -24,29 +24,30 @@ pub(crate) fn formula(depth: usize, move_count: usize) -> f64 {
 #[cfg(test)]
 mod tests {
     use super::*;
+    const ZERO: f64 = 0.0;
 
     #[test]
     fn test_lmr_formula() {
         let depth = 5;
         let move_count = 10;
         let result = formula(depth, move_count);
         assert!(result.is_finite());
-        assert!(result > 0.0);
+        assert!(result > ZERO);
     }
 
     #[test]
     fn test_lmr_formula_zero_depth() {
         let depth = 0;
         let move_count = 10;
         let result = formula(depth, move_count);
-        assert_eq!(result, LMR_OFFSET);
+        assert_eq!(result, ZERO);
     }
 
     #[test]
     fn test_lmr_formula_zero_moves() {
         let depth = 5;
         let move_count = 0;
         let result = formula(depth, move_count);
-        assert_eq!(result, LMR_OFFSET);
+        assert_eq!(result, ZERO);
     }
 }

engine/src/tuneable.rs

@@ -26,5 +26,5 @@ pub(crate) const IIR_DEPTH_REDUCTION: ScoreType = 1;
 pub(crate) const NMP_MIN_DEPTH: ScoreType = 3;
 pub(crate) const NMP_DEPTH_REDUCTION: ScoreType = 2;
 
-pub(crate) const LMR_OFFSET: f64 = 0.0;
+pub(crate) const LMR_OFFSET: f64 = 0.2;
 pub(crate) const LMR_SCALING_FACTOR: f64 = 3.0;