added reuse of subtree for simulations (apply_move), played around with rollout depth

chesspp/stockfish_strategy.py

@@ -0,0 +1,16 @@
+import chess
+from chesspp.i_strategy import IStrategy
+import chess.engine
+
+
+class StockFishStrategy(IStrategy):
+    stockfish: chess.engine.SimpleEngine
+
+    def __init__(self):
+        self.stockfish = chess.engine.SimpleEngine.popen_uci(
+            "/home/luke/projects/pp-project/chess-engine-pp/stockfish/stockfish-ubuntu-x86-64-avx2")
+
+    def pick_next_move(self, board: chess.Board) -> chess.Move | None:
+        move = self.stockfish.play(board, chess.engine.Limit(depth=4)).move
+        print("stockfish picked:", move)
+        return move