PHASE 1 · 5 STARS
Beginner 5×5
One star in every row, column and region. The smallest board. Learn how a star blocks its neighbours.
All Star Battle puzzles
228 free puzzles in four levels. Each one has exactly one solution, and logic alone will get you there. New to the game? Learn the rules in a minute, then start at Beginner.
PHASE 2 · 8 STARS
Intermediate 8×8
One star in every row, column and region. Still one star per line, with room for real deductions.
PHASE 3 · 20 STARS
Advanced 10×10
Two stars in every row, column and region. The classic. Two stars per line, the format of the daily puzzle.
PHASE 4 · 42 STARS
Expert 14×14
Three stars in every row, column and region. Three stars per line and 42 stars in total. Bring time.
How the levels work
The grid size sets how long a puzzle takes. The difficulty sets which techniques it needs. We grade every puzzle by solving it with human-style logic, then file it under the hardest move it really requires.
| Level | Grid | Stars per line | Total stars | Typical time |
|---|---|---|---|---|
| Beginner | 5 × 5 | 1 | 5 | 1 min to 3 min |
| Intermediate | 8 × 8 | 1 | 8 | 3 min to 8 min |
| Advanced | 10 × 10 | 2 | 20 | 8 min to 20 min |
| Expert | 14 × 14 | 3 | 42 | 25 min to 50 min |
- Easy: Solved with direct moves: clearing neighbours and counting the cells left.
- Medium: Adds moves that look across a line: regions that lock a row or column.
- Hard: Needs counting across groups of lines, and sometimes following a move through to its end.