Tic-tac-toe grown up. On a 3×3 board you and the AI each have six pieces in three sizes, and a bigger piece can gobble a smaller one — covering it completely. Only the top piece of each stack counts toward three-in-a-row. The catch: when you move a piece off a stack, whatever was hiding underneath is suddenly back in play. Get three of your color in a row and build the longest streak.
You play the dark pieces, the AI the light ones. Each side has two small, two medium and two large pieces, shown in the trays above and below the board.
On your turn you make one move. Tap a piece in your tray (or one of your pieces already on the board), then tap a highlighted cell to drop it there. A piece may land on an empty cell, or gobble any smaller piece — yours or the AI's — sitting on top of a stack. It can never land on a piece its own size or bigger.
Only the visible top piece of each cell counts. Three of your color in a row, column or diagonal wins the round.
The twist is uncovering: if you move a piece that was gobbling something, the piece beneath comes back into view. If that reveals three of the AI's color in a row, the AI wins — so watch what you are sitting on. A win adds 1 to your streak; a loss ends the game. The AI plays sharper as your streak grows, and who moves first alternates each round.
The center is the strongest square, exactly as in ordinary tic-tac-toe — it belongs to four of the eight winning lines. But here a piece is never permanent, so grabbing the center with a small piece invites the AI to gobble it. Take the middle with something big enough that it cannot easily be swallowed.
Size is a resource you spend, not just a shield. Your two large pieces can gobble anything, so they are your rescue tool — they can smother the AI's third-in-a-row at the last instant. Don't burn both early; keep at least one large in reserve for the moment the AI threatens to win, and you can cover the threat instead of racing it.
Always read what is underneath before you move. A gobbler is hiding a piece, and lifting it puts that piece back on the board. If you are covering one of the AI's pieces on a line, moving away can hand the AI three in a row on the spot — the fastest way to lose a round you thought you were winning.
Use the uncover rule as a weapon, not just a hazard. If you have a large piece sitting on one of your own pieces, and moving it elsewhere still leaves your line intact — or completes a second threat — you get two moves' worth of value from one. Set up positions where lifting a gobbler reveals your color, not the AI's.
The AI starts loose and tightens fast. Early on it will give you the center and miss covers; higher up it defends every line, saves its big pieces, and punishes any move that uncovers its color. The long streaks come from thinking one gobble ahead — always knowing what is under each stack before you touch it.