feat: change default window size 0.25 -> 0.5

1 files changed, 3 insertions, 3 deletions

diff --git a/src/board/engine.rs b/src/board/engine.rs
index 3977258..2c294a3 100644
--- a/src/board/engine.rs
+++ b/src/board/engine.rs
@@ -384,7 +384,7 @@ impl Board {
         let mut depth = 1;
         let mut alpha = -INFINITY;
         let mut beta = INFINITY;
-        let window_size = 0.25;
+        let window_size = 0.5;
         let mut gradual_widening_counter = 0;
 
         while depth <= max_depth {
@@ -411,13 +411,13 @@ impl Board {
                 println!("Alpha cutoff {} <= {:?}", search_result.0, (alpha, beta));
                 gradual_widening_counter += 1;
                 beta = alpha;
-                alpha = search_result.0 - window_size * 4.0f32.powi(gradual_widening_counter);
+                alpha = search_result.0 - window_size * 2.0f32.powi(gradual_widening_counter);
                 continue;
             } else if search_result.0 >= beta { // Beta-cutoff
                 println!("Beta cutoff {:?} <= {}", (alpha, beta), search_result.0);
                 gradual_widening_counter += 1;
                 alpha = beta;
-                beta = search_result.0 + window_size * 4.0f32.powi(gradual_widening_counter);
+                beta = search_result.0 + window_size * 2.0f32.powi(gradual_widening_counter);
                 continue;
             } else {
                 panic!("Can this ever be possible? (probably not)");