major algo improvements again

src/game.rs

@@ -67,8 +67,37 @@ impl Game {
 
             println!("{}", self);
 
-            // Check if the game is over
+            // TODO! what if the board isn't full, but one player cannot win as
+            // they don't have any moves to play?
+            // Example::
+            // Player 1 placed at (1, 0)
+            // Players: Complex Agent (□) and Manual Agent (■)
+            //   0 1 2 3 4 5 6 7
+            //  -----------------
+            // 0|□|□|□|□|□|□|□|□|
+            //  -----------------
+            // 1|■|■|■|□|□|□| |□|
+            //  -----------------
+            // 2|■|■|□|■|□|□|□|□|
+            //  -----------------
+            // 3|■|■|□|□|■|□|□|□|
+            //  -----------------
+            // 4|■|■|□|□|■|□|□|□|
+            //  -----------------
+            // 5|□|□|■|□|■|□|□|□|
+            //  -----------------
+            // 6| |□|□|□|□|□|□|□|
+            //  -----------------
+            // 7| | | |■|■| |■| |
+            //  -----------------
+            // White Score: 17
+            // Black Score: 40
+
+            // (depth: 5) possible board states: 0
+            // thread 'main' panicked at src/complexagent.rs:139:9:
+            // ComplexAgent didn't make a move
             if self.board.game_over() {
+                // end the game
                 break;
             }