OOSCG-W

OOSCG-W is a two-player game played on a square board of any size, initially empty. The two players, Red and Blue, take turns placing their own stones on the board, one stone per turn, starting with Red. Passing is not allowed. Red must form a path of red stones (interconnected via horizontal or vertical adjacencies, or both) connecting the two opposite red sides of the board. Blue must form a path of blue stones connecting the two opposite blue sides of the board. Play You begin your turn by placing a stone on any unoccupied square. If your placement forms one or more crosscuts, remove all of the enemy crosscut stones. A crosscut is a 2×2 area with two diagonally adjacent red stones and two diagonally adjacent blue stones. If N enemy stones are removed, place up to N of your own stones, as many as you can without forming a new crosscut, on any unoccupied squares, concluding your turn.