How to play
Share one device with a friend. Player 1 and Player 2 take turns choosing a column; each piece falls to the lowest empty space. Connect four horizontally, vertically, or diagonally to win. A full board without a winner is a draw.
Click a column button above the board. On a keyboard, select a column with Left/Right and press Enter or Space to drop a piece. Colours and player numbers distinguish the pieces.
P or Escape pauses and resumes while the board has focus. Clicking outside the game or switching windows pauses automatically.