Zip · No. 510 · Sunday edition
LinkedIn Zip #510 Answer (Aug 9, 2026)
Hint: Corners and cells boxed in by walls have only one or two exits — route the path through them first.
Show Zip #510 answer as text
- 1→2: ↓
- 2→3: ← ↑ ← ↓×4 ← ↑×5
- 3→4: →
- 4→5: →×3 ↓×6 ←
- 5→6: ↑×3
- 6→7: ← ↓×3
- 7→8: ←
- 8→9: ←×3 ↑ →
- 9→10: ↑
- 10→11: ← ↑×4 →
- 11→12: ↓×3
About Zip #510
- Zip #510 is a 7×7 grid with 12 numbered checkpoints and 12 walls.
- The path runs from 1 to 12 and must cover all 49 squares.
- LinkedIn rates it Hard.
- It has 12 checkpoints, more than the average of 11.4 across the previous 7 puzzles.
- Each square is entered once and left once, so it needs two path links; only the two ends, checkpoints 1 and 12, need just one.
- The corners R1C1, R1C7, R7C1, and R7C7 have just two neighbors each, so all their links are forced: R1C1 links to R2C1 and R1C2; R1C7 links to R1C6 and R2C7; R7C1 links to R6C1 and R7C2; R7C7 links to R6C7 and R7C6.
- Walls leave checkpoint 11 at R1C2, checkpoint 3 at R1C3, and R3C3 only two open sides each, which fixes their links: R1C2 links to R1C1 and R2C2; R1C3 links to R2C3 and R1C4; R3C3 links to R2C3 and R4C3.
- Joining R2C1 to R2C2 would close a loop, because the forced links already connect them, which leaves R2C1 and R2C2 with only two exits each: R2C1 links to R1C1 and R3C1; R2C2 links to R1C2 and R3C2.