Glaze

A minimalist color-stacking puzzle.

Fill each board with tetromino pieces so it matches the goal picture. Yellow and red are transparent pieces — lay a yellow over a red and the cell reads orange. But an orange cell in the goal might be an orange piece or a red glazed by yellow, and you can't tell which just by looking. Figuring out which is the whole puzzle.

How to play

• Tap a piece, then tap the board to place it (its top-left corner lands where you tap).
• Rotate with R, undo with U.
• Tap a placed piece to pick it back up.
• Stuck? You get 3 hints per level.

20 hand-tuned levels that build from simple fills to tightly-packed boards.

Made in a single HTML file. Runs in your browser, no install.