remove extra call to propegate_from_dry

src/complexagent.rs

@@ -115,8 +115,9 @@ impl FutureMoves {
     ) -> impl Iterator<Item = usize> {
         let start_idx = self.arena.len();
         self.arena.extend(
-            board
-                .possible_moves(color)
+            // use [`Board::all_positions`] here instead of [`Board::possible_moves`]
+            // because we use [`Board::what_if`] later and we want to reduce calls to [`Board::propegate_from_dry`]
+            Board::all_positions()
                 .flat_map(|(i, j)| board.what_if(i, j, color).map(|x| (i, j, x)))
                 .map(|(i, j, (new_board, captured))| Move {
                     i,