Zip #18 Solution (October 13, 2026): Route, Decision Points and Answer

Zip #18 was the 6×6 medium board of Tuesday, October 13, 2026: 7 numbered dots, 4 walls, and one path that visits all 36 cells in order. Our solver, a line-for-line port of the app's, needed 341 search nodes to prove the path unique, which puts the board at 5 of 5 on the difficulty scale. Along the answer, 54% of the moves had only one legal continuation; the other 16 steps offered a real choice, and those are where you have to look ahead. The path turns at 59% of its cells, and its longest straight run is 6 cells. The longest leg, between two consecutive dots, is 12 cells.

Zip #18 in numbers

Board	6×6, Medium
Numbered dots	7
Walls	4
Cells on the path	36
Solver search nodes	341 (5/5)
Moves with a single legal continuation	54%
Decision points	16
Turns along the path	59%

Zip #18 route, dot by dot

How many cells each leg takes and which way it runs, reading from dot 1. “Right 3” means three steps to the right.

Leg	Cells	Directions
1 → 2	1	right 1
2 → 3	2	right 1, down 1
3 → 4	12	left 2, down 1, right 3, up 2, right 2, down 1, left 1
4 → 5	1	down 1
5 → 6	10	right 1, down 1, left 3, down 1, right 3, down 1
6 → 7	9	left 5, up 1, right 1, up 1, left 1

Where the choices are: step 1 at row 1, column 1 (2 ways), step 3 at row 1, column 3 (2 ways), step 4 at row 2, column 3 (3 ways), step 5 at row 2, column 2 (2 ways), step 9 at row 3, column 3 (2 ways) and step 10 at row 3, column 4 (2 ways) and 10 more. Everywhere else only one move keeps the board solvable.

Zip #18 solution

The number in each cell is its position on the path; the dots keep their own numbers and are highlighted.

12312131465311415789105187352221201933342324252632313029286

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Zip #18 (October 13, 2026): solution and route

Zip #18 in numbers

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