Four Square II

Squares replace lines as the target in Four Square II. You need four blocks of your colour arranged into a square, with each completed shape awarding points. The opponent is trying to do the same, so a placement can matter both for your own construction and for stopping theirs.

The description compares the idea with tic-tac-toe but does not specify a board size, a final score or the points awarded by each square. It also does not explain the player-mode setup. Read those details in the game rather than assuming a familiar three-in-a-row finish or a particular match length.

Look for a placement that advances your shape while interrupting the opponent's next one. Thinking about both colours before clicking is the specific strategic opportunity described, and checking the score after a completed square helps you learn the reward structure without guessing it. For a different game about completing squares against an opponent, see Dots & Boxes.

Four Square II asks you to click an empty space to place a gem. No keyboard controls or extra actions are supplied, so make decisions through the open board positions and inspect the current rules for how a square is recognised.