How to play
Apply the four rules in order. Mark cells you have ruled out. Use the hint button only when stuck for over a minute.
Game features
- Sixty hand-built boards
- Built-in hint system, one cell per board
- Daily puzzle plus freeplay
- Save resumes per-board state
- Single-tap input on touch devices
- No real-money purchases
Editor review
Stack Mosaic is a deduction puzzle that respects the format. Sixty hand-built boards, a four-rule logic grid, and a hint system that gives you exactly one cell per board on demand. The constraint on hints is the right call. It keeps the boards honest and prevents the hint button from becoming a solver.
The board curve is the strongest part. Starters at 5x5, expert tier at 9x9, and the rule set scales rather than the board size doing the heavy lifting. By the time you reach the 8x8 tier the four-rule interaction matters more than the cell count.
I worked through about twenty boards across two evening sessions and a long Galway Galway bus commute. Each board takes three to seven minutes at the mid-tier. The save state preserves your in-progress marks per board, which matters for the longer boards.
Where I would push back is the visual layout on phones. The 9x9 boards crowd the screen and the cell-mark UI overlaps the rule list on smaller displays. A zoomable board would help. Four-and-a-half stars for a tightly-built deduction puzzle.
Nilima Joshi covers Puzzle and logic games for Stack Stream, based in Surat.
Frequently asked questions about Stack Mosaic
How do I play Stack Mosaic?
Apply the four rules in order. Mark cells you have ruled out. Use the hint button only when stuck for over a minute.
Is Stack Mosaic free to play in my browser?
Yes. Stack Mosaic runs free in any modern browser. No installation, no signup, no payment required. Click the play button to load the game.
Does Stack Mosaic work on mobile devices?
Stack Mosaic runs in mobile browsers on iOS and Android with touch controls. Most puzzle games on AJ Arcade support both desktop and mobile, though precision-heavy titles tend to play better on desktop with a keyboard or gamepad.
Who reviewed Stack Mosaic on AJ Arcade?
Nilima Joshi reviewed Stack Mosaic. Their full editor review appears above and their other coverage is available on their author profile.
Where can I find more games like Stack Mosaic?
More puzzle titles are available on the Puzzle category page. Every game on AJ Arcade has been played and reviewed by one of our three reviewers before publication.