Teaching LinkedIn Zip #483: students sketch one checkpoint hop at a time on this 7×7 board. 6 checkpoints, 20 walls. Walk the 5 segments before drawing the full line.
Board spotlight: Many blocked edges narrow your options early — map wall bottlenecks before tracing toward the next numbered checkpoint. Wall count 20 on 7×7 shapes which corridors stay open between numbered cells.
Lesson hop 1: show why the path must pass through R1C1 before checkpoint 2. 9 cells link checkpoint 1 at R5C1 to checkpoint 2 at R1C1 with open corridors (no walls on this segment).
Lesson hop 2: show why the path must pass through R3C7 before checkpoint 3. 9 cells link checkpoint 2 at R1C1 to checkpoint 3 at R3C7 with open corridors (no walls on this segment).
Lesson hop 3: show why the path must pass through R7C7 before checkpoint 4. 5 cells link checkpoint 3 at R3C7 to checkpoint 4 at R7C7 with open corridors (no walls on this segment).
Lesson hop 4: show why the path must pass through R6C2 before checkpoint 5. 9 cells link checkpoint 4 at R7C7 to checkpoint 5 at R6C2 with open corridors (no walls on this segment).
Lesson hop 5: show why the path must pass through R2C6 before checkpoint 6. Long 21-cell sweep (43% of the board) from checkpoint 5 to 6 — most of the Hamiltonian path lives in this detour.
Recap: 6 checkpoints, 5 teachable hops, one continuous route. Replay using checkpoint-first planning.