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src/logic/future_moves.rs

@@ -519,7 +519,7 @@ impl FutureMoves {
                 return;
             }
 
-            // only prune moves of the agent
+            // only prune moves of the agent (children of opposite color)
             if indexes.first().map(|&i| self.arena[i].color) != Some(self.agent_color) {
                 continue;
             }