10 puzzles

Easy One Line Puzzles

The Easy campaign band brings together the first ten boards. Begin with short rectangular routes, then meet the revised fourth and fifth puzzles, where a legal move can still leave squares unreachable. This band describes campaign position rather than a measured solve rate.

A practical way to approach these boards

Before drawing, locate the circle and diamond. Count the white squares and notice narrow passages. On the first few boards, practice tracing back to the preceding square rather than restarting every time you reconsider a turn.

Rules for every board

Move orthogonally from the circle, cover all active squares, and reach the diamond last. Backtracking and retries are free. When browser storage is available, the board below each level introduction shares saved progress with the trial.

LEVEL 01One Line Puzzle level 1 opening diagram: 6 active squares, circle at row 4, column 3, diamond at row 5, column 3Find your flow

6 active squares · 5 verified moves · 0 gaps inside occupied bounds

Play level →LEVEL 02One Line Puzzle level 2 opening diagram: 12 active squares, circle at row 3, column 3, diamond at row 5, column 6A little room to think

12 active squares · 11 verified moves · 0 gaps inside occupied bounds

Play level →LEVEL 03One Line Puzzle level 3 opening diagram: 16 active squares, circle at row 3, column 3, diamond at row 5, column 4Outside, then inside

16 active squares · 15 verified moves · 0 gaps inside occupied bounds

Play level →LEVEL 04One Line Puzzle level 4 opening diagram: 22 active squares, circle at row 4, column 3, diamond at row 4, column 6Keep both sides connected

22 active squares · 21 verified moves · 3 gaps inside occupied bounds

Play level →LEVEL 05One Line Puzzle level 5 opening diagram: 26 active squares, circle at row 3, column 4, diamond at row 5, column 3Leave a way back

26 active squares · 25 verified moves · 4 gaps inside occupied bounds

Play level →LEVEL 06One Line Puzzle level 6 opening diagram: 28 active squares, circle at row 2, column 4, diamond at row 3, column 6Two ways across

28 active squares · 27 verified moves · 2 gaps inside occupied bounds

Play level →LEVEL 07One Line Puzzle level 7 opening diagram: 28 active squares, circle at row 3, column 3, diamond at row 4, column 7A narrow return

28 active squares · 27 verified moves · 2 gaps inside occupied bounds

Play level →LEVEL 08One Line Puzzle level 8 opening diagram: 28 active squares, circle at row 4, column 4, diamond at row 6, column 7Keep the bridge open

28 active squares · 27 verified moves · 2 gaps inside occupied bounds

Play level →LEVEL 09One Line Puzzle level 9 opening diagram: 28 active squares, circle at row 4, column 7, diamond at row 6, column 6Across the gap

28 active squares · 27 verified moves · 2 gaps inside occupied bounds

Play level →LEVEL 10One Line Puzzle level 10 opening diagram: 28 active squares, circle at row 5, column 5, diamond at row 2, column 3One last connection

28 active squares · 27 verified moves · 2 gaps inside occupied bounds

Play level →

Questions about these puzzles

Are all these boards rectangular?

No. The early boards include compact rectangles, while later boards in this band have missing squares and side pockets.

Do mistakes cost a life?

No. Undo, reverse tracing and Restart are free, and there is no timer or retry limit.