Connect Four
Players take turns dropping colored discs into a seven-column, six-row vertical grid. Discs fall to the lowest empty slot, so you choose a column, not an exact square. The first player to line up four of their discs in a row — horizontally, vertically, or diagonally — wins. Control the center column early, watch for diagonal threats, and set up a double threat (a "seven trap") your opponent cannot block in one move.