add early_break for extend_layers

src/complexagent.rs

@@ -13,10 +13,11 @@ pub struct ComplexAgent {
 impl ComplexAgent {
     pub const fn new(color: Piece) -> Self {
         const CONFIG: FutureMoveConfig = FutureMoveConfig {
-            max_depth: 7,
+            max_depth: 9,
             start_pruning_at_minus: 4,
             top_k_children: 2,
             up_to_mod: 4,
+            max_arena_size: 100_000_000,
         };
         Self {
             color,