How to play
It's four in a row on a 7×6 board, with one big difference: both players move at the same time.
1. Pick 3 columns
Each round you choose 3 columns, in order. You can pick the same column more than once. Your opponent picks too, and neither of you sees the other's choice.
2. The coins drop in turns
When both players are ready, the picks are revealed and the 6 coins drop one at a time: the first player's 1st, the second player's 1st, then the 2nds, then the 3rds. The first player is yellow.
3. Full column? It slides
A coin aimed at a full column lands in the nearest column with space. If there's a tie, left wins.
4. Score lines
Every 4 coins of one colour in a row, across, up or diagonally, is a line. Longer runs count more: 5 in a row is 2 lines, 6 is 3.
5. Seven rounds
7 rounds × 6 coins = 42 coins, exactly enough to fill the board. Whoever has more lines at the end wins. Online, each round lasts 30 seconds. If time runs out, any missing picks are random.