13×13 Pipe Puzzles
A 13×13 board holds 28 to 40 colors on 169 cells. With that many pairs, most paths are short. The puzzle is sorting which pair to lock before it blocks a neighbor, not drawing one line across the whole grid.
The dots are smaller on a phone because the grid scales to the page width. The board does not scroll sideways. If the ends are hard to hit, the 7×7 pack is the same game with fewer colors.
There is no larger size after this pack. Next, on the last level, returns to the first 13×13 board. Empty cells are still allowed. Connecting every pair is the clear.
13x13-0001
13×13 · 29 colors · difficulty 2★
All 13×13 levels
29 colors · ★★
33 colors · ★★★★
28 colors · ★
39 colors · ★★★★★
35 colors · ★★★★
31 colors · ★★★
29 colors · ★★
28 colors · ★
35 colors · ★★★★★
36 colors · ★★★★★
31 colors · ★★★
31 colors · ★★
35 colors · ★★★★
33 colors · ★★★
34 colors · ★★★★
35 colors · ★★★★
29 colors · ★★
32 colors · ★★★
35 colors · ★★★★★
35 colors · ★★★★
36 colors · ★★★★★
33 colors · ★★★
30 colors · ★★
34 colors · ★★★★
38 colors · ★★★★★
32 colors · ★★★
28 colors · ★
28 colors · ★
31 colors · ★★★
30 colors · ★★
28 colors · ★★
31 colors · ★★★
30 colors · ★★★
32 colors · ★★★
38 colors · ★★★★★
33 colors · ★★★★
31 colors · ★★★
28 colors · ★
29 colors · ★
30 colors · ★★
35 colors · ★★★★★
33 colors · ★★★★
32 colors · ★★★★
29 colors · ★
33 colors · ★★★
34 colors · ★★★★
30 colors · ★★★
31 colors · ★★
32 colors · ★★★
40 colors · ★★★★★
36 colors · ★★★★★
35 colors · ★★★★★
29 colors · ★
29 colors · ★★
32 colors · ★★★
34 colors · ★★★★
30 colors · ★
31 colors · ★★
33 colors · ★★★★
31 colors · ★★
34 colors · ★★★★
36 colors · ★★★★★
31 colors · ★★★
29 colors · ★
32 colors · ★★★
32 colors · ★★★
28 colors · ★
34 colors · ★★★★
36 colors · ★★★★★
29 colors · ★
29 colors · ★
30 colors · ★★
28 colors · ★
30 colors · ★★
30 colors · ★
30 colors · ★★
34 colors · ★★★★
38 colors · ★★★★★
29 colors · ★★
36 colors · ★★★★★
28 colors · ★
32 colors · ★★★
31 colors · ★★★
29 colors · ★
31 colors · ★★
29 colors · ★★
38 colors · ★★★★★
29 colors · ★
31 colors · ★★★★
37 colors · ★★★★★
35 colors · ★★★★
34 colors · ★★★★
34 colors · ★★★★
28 colors · ★★
36 colors · ★★★★★
28 colors · ★
38 colors · ★★★★★
28 colors · ★
29 colors · ★★
37 colors · ★★★★★
13×13 puzzle rules
- Connect each pair of same-colored dots with a line.
- The level is clear once every pair is connected. Empty cells can stay empty.
- Lines cannot cross.
This pack is 169 cells and 28 to 40 colors. The clear is the same as on every other size: every pair joined by one line. Cells left over can stay empty.
Lines still cannot share a cell. A larger grid does not add diagonals, timers that fail you, or tiles to rotate.
How to play a 13×13 board
- Start with any pair whose ends are already close.
- Keep a path off the only exit of a corner endpoint.
- Retract or undo as soon as a line sits on another color's corridor.
- Stop when every pair is connected. Do not keep drawing to cover blank cells.
Pick a level from the full list below. The link text is the level name, such as 13x13 puzzle #1, and the address stays on this page. Stars on the card are that level's difficulty inside the 13×13 pack.
13×13 questions
- How many 13×13 levels are there?
- One hundred. Every level in the pack is linked on this page. Other sizes are separate packs with their own 100 levels.
- How many colors does a 13×13 puzzle use?
- Boards in this pack use 28 to 40 colors. The color count is why this size feels different. The pairing rule does not change.
- Do I have to fill every cell?
- No. The level is clear when every pair is connected. Empty cells can stay empty on this size and on the others.