PuzzleCount what a blue tile can see
PATTERNS, COUNTS & CLEAR BOARDS
Choose an untimed board, a deduction puzzle or falling blocks with a faster rhythm. These games share compact playfields, while asking you to reason in different ways.

A PLACE TO BEGIN / 0h h1
0h h1 makes the three constraints explicit. A small board gives you a manageable place to practice deductions from pairs and color counts.
Meet 0h h1 ↗2048 lets you inspect the whole board between moves. The two Q42 puzzles let you work through constraints. Hextris and Tetris add continuous motion, so recognizing a good placement and executing it become separate skills.
0h h1 combines color counts, no-three runs and unique lines. 0h n0 counts visibility past red blockers. BreakLock asks you to interpret feedback about a hidden pattern. A familiar red-and-blue board does not mean the same rules apply.
For 2048, leave a useful lane for the next merge. For Hextris, inspect all six faces. For Tetris, avoid covering an empty cell. Each game has its own notebook or control table, and the related guides explain the difference before you switch.
THE OPTIONS AT A GLANCE
| Game | Why try it | Pace | Progress |
|---|---|---|---|
| 0h h1 ↗Web-native | Untimed logic using a pointer or touch selection. | Turn-by-turn logic | Use the original host’s current puzzle options. No cross-device puzzle sync is promised here. |
| 0h n0 ↗Web-native | Quiet logic based on orthogonal sight lines. | Turn-by-turn logic | Check puzzle and resume options on the original host; this guide does not store the board. |
| BreakLock ↗Web-native | Deduction puzzles and learning from each attempt. | Practice / timed modes | Treat an in-progress pattern as a session, not a backed-up campaign. |
| 2048 ↗Web-native | A board puzzle you can consider one move at a time. | Untimed moves | Board and best score use localStorage when available. |
| Hextris ↗Web-native | Quick reactions and keeping several stacks under control. | Continuous falling blocks | Local state in this browser; separate from other Hextris hosts. |
| JavaScript Tetris ↗Browser recreation | A keyboard puzzle played against a continuously falling piece. | Real-time falling blocks | Persistent high scores and campaign saves are not documented features of this implementation. |