Archive · Zip #40

Zip #40 (November 4, 2026): solution and route

The 7×7 Medium puzzle from Wednesday, November 4, 2026. Play it first; the route and the solved path are folded below. Replays don't affect your streak.

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Zip #40 was the 7×7 medium board of Wednesday, November 4, 2026: 10 numbered dots, 5 walls, and one path that visits all 49 cells in order. Our solver, a line-for-line port of the app's, needed 874 search nodes to prove the path unique, which puts the board at 5 of 5 on the difficulty scale. Along the answer, 56% of the moves had only one legal continuation; the other 21 steps offered a real choice, and those are where you have to look ahead. The path turns at 51% of its cells, and its longest straight run is 7 cells. The longest leg, between two consecutive dots, is 12 cells.

Zip #40 in numbers

Board7×7, Medium
Numbered dots10
Walls5
Cells on the path49
Solver search nodes874 (5/5)
Moves with a single legal continuation56%
Decision points21
Turns along the path51%
Zip #40 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.

LegCellsDirections
1 → 23up 1, right 1, down 1
2 → 31down 1
3 → 45left 2, up 2, left 1
4 → 51left 1
5 → 612up 1, right 1, up 1, left 1, up 1, right 2, down 2, right 2, up 1
6 → 71left 1
7 → 88up 1, right 1, up 1, left 5
8 → 912left 1, down 6, right 3, up 1, left 1
9 → 105left 1, up 4

Where the choices are: step 1 at row 6, column 6 (3 ways), step 2 at row 5, column 6 (3 ways), step 3 at row 5, column 7 (2 ways), step 8 at row 6, column 5 (2 ways), step 9 at row 5, column 5 (2 ways) and step 10 at row 5, column 4 (3 ways) and 15 more. Everywhere else only one move keeps the board solvable.

Zip #40 solution

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

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