FreeCell

Controls Goal: move all 52 cards from the 8 columns onto the 4 foundations (top right), building each suit from Ace to King. Your score is the time taken — shorter is higher. Rules: in a column you can place a card on one that is one rank higher and of the opposite color (black 6 on red 7); the 4 free cells (top left) each hold one card temporarily. Any card can go to an empty column, and the longest run you can move at once is (free cells + 1) × 2^(empty columns). Controls: drag cards with the mouse or by touch, or tap a card to pick it and then tap the destination (column, free cell or foundation). Double-tap a card to send it to its foundation. Undo (Z or U) can step back many moves, and Auto sends the safe cards to the foundations. Once every remaining card can go to the foundations in order, the rest finishes automatically — your time stops at that moment. Tips: spend free cells and empty columns carefully and dig out buried Aces and 2s early. The deal number lets you replay the same deal; almost every deal is solvable but it is not guaranteed (start a new one if you are stuck). The clock starts at your first move and there is no pause.