I solve LinkedIn Zip #466 checkpoint by checkpoint on a 7×7 grid. 9 numbers to hit in sequence, 6 walls to respect. My route breaks into 8 hops: 1→2 (13 cells), 2→3 (7 cells), 3→4 (3 cells), 4→5 (5 cells), 5→6 (3 cells), 6→7 (15 cells), 7→8 (5 cells), 8→9 (5 cells).
Before the first stroke I mark walls and the next checkpoint — on this board that means Checkpoints sit close together on the grid — short numbered hops still need full-cell coverage between them without revisiting squares.
I draw hop 1 next — checkpoint 2 at R1C5 after 13 cells from R6C4. Open corridor — no walls on this hop.
I draw hop 2 next — checkpoint 3 at R6C6 after 7 cells from R1C5. Open corridor — no walls on this hop.
I draw hop 3 next — checkpoint 4 at R5C5 after 3 cells from R6C6. Open corridor — no walls on this hop.
I draw hop 4 next — checkpoint 5 at R3C3 after 5 cells from R5C5. Open corridor — no walls on this hop.
I draw hop 5 next — checkpoint 6 at R2C4 after 3 cells from R3C3. Open corridor — no walls on this hop.
I draw hop 6 next — checkpoint 7 at R7C3 after 15 cells from R2C4. Open corridor — no walls on this hop.
I draw hop 7 next — checkpoint 8 at R4C4 after 5 cells from R7C3. Open corridor — no walls on this hop.
I draw hop 8 next — checkpoint 9 at R2C2 after 5 cells from R4C4. Open corridor — no walls on this hop.
Finished — every cell filled, no revisits, walls respected. Checkpoints sit close together on the grid — short numbered hops still need full-cell coverage between them without revisiting squares.