| http://www.w3.org/ns/prov#value | - For example, if X has a corner, O has the center, and X has the opposite corner as well, O must not play a corner in order to win. (Playing a corner in this scenario creates a fork for X to win.)Option 2: If there is a configuration where the opponent can fork, the player should block that fork.Center: A player marks the center. (If it is the first move of the game, playing on a corner g
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