The goal
You are shown a target silhouette — an outline made of filled squares on a grid. Your job is to fill that exact shape by dropping a fixed queue of blocks into a play area. Fill every square of the target without going outside it, and you win.
The pieces
Each puzzle gives you a queue of stacking pieces drawn from the seven classic four-square shapes:
- I — four squares in a straight line.
- O — a two-by-two square.
- T — three in a row with one square poking out of the middle.
- S and Z — mirror-image zigzags.
- L and J — mirror-image hooks.
The queue is fixed for the day. You see what is coming next, but you cannot skip pieces. To make the puzzle fair, we use a seven-bag generator: each shape appears once per seven draws, so you will never get five S-pieces in a row.
Controls
On desktop:
- ← → move the active piece left or right
- ↑ rotate clockwise
- ↓ soft drop (move down faster)
- space hard drop (slam to the bottom)
- R restart the current puzzle
- Z undo your last placed piece
On mobile, on-screen buttons mirror the same actions. Tap to rotate, swipe or use the side arrows to move, and use the drop button to slam.
Scoring
Two numbers drive your score:
- Match % — the percentage of target squares you successfully filled. 100% means you covered the entire silhouette.
- Overflow — the count of squares you filled outside the target. Every block outside the silhouette counts as one overflow square.
A win is 100% match with zero overflow. Anything less is a partial result — you can keep your time and try again, or move on to the next puzzle.
Time is tracked from your first piece placement. It pauses when the How to Play overlay is open and stops when the puzzle ends. Faster completions earn better rankings on shared scorecards.
Difficulties
Three difficulties are unlocked every day at midnight Eastern Time:
- Easy. Small board, short queue, silhouette visible the entire time. A good warm-up.
- Medium. Bigger board, longer queue, silhouette visible for a five-second peek at the start — then it fades. You play from memory after that.
- Hard. Largest board, longest queue, silhouette never shown. You see it only after the puzzle ends. This is a pure memory and reasoning challenge — the silhouette panel still shows the rough footprint, but the interior pattern is hidden.
Sharing your result
When you finish a puzzle, the result modal gives you a copyable summary — puzzle number, difficulty, match percentage, time, and an emoji-grid rendering of your filled board. Paste it into a chat or a tweet without spoiling the day's target. Overflow squares are stripped from shared winning grids so the recipient can still play the puzzle clean.
Next steps
Once you have the rules down, read the strategy guide for tips on raising your match percentage and shaving seconds off your time. If something is still unclear, the FAQ covers the most common questions.