Create engine/endgame.py

engine/endgame.py

@@ -0,0 +1,23 @@
+"""
+Endgame Detection for Nexus-Nano
+Minimal overhead detection
+"""
+
+import chess
+
+
+class EndgameDetector:
+    """Basic endgame detection"""
+    
+    def is_known_draw(self, board: chess.Board) -> bool:
+        """Quick draw detection"""
+        return (
+            board.is_insufficient_material() or
+            board.halfmove_clock >= 100
+        )
+    
+    def adjust_evaluation(self, board: chess.Board, eval_score: float) -> float:
+        """Minimal adjustment"""
+        if self.is_known_draw(board):
+            return 0.0
+        return eval_score