Games
Four in a row
Four in a row in an upright rack: drop red and yellow discs into the columns in turn, and line up four of your own - across, up or diagonally - before the other side does. Play in the classic 7 by 6 rack or a wider 8 by 7. The discs fall and rattle into place; the winning four lights up. Play the computer at five levels - the strongest reads the endgame out to the last disc - play a friend at one screen, ask for a hint, take moves back, or watch a demo game.

What happens
Two sides take turns dropping a disc into a column; it falls to the lowest free cell. The first to line up four of its own discs - across, up or diagonally - wins; if the rack fills up first, the game is a draw. The classic rack is 7 columns by 6 rows, the wide one 8 by 7. The side that begins has the edge: in the classic rack, perfect play from the middle column wins. The computer reads the moves ahead and counts the cells that would complete a four for either side; the weak levels look two to four moves ahead, the strongest reads the endgame to the last disc.
Try this
Click a column to drop a disc. The right mouse button turns the view, the wheel zooms.


