Setup and opening position
Each cell has one immutable compass arrow, the cells for one and nine are fixed, and the remaining seven labels begin blank in a uniquely solvable deterministic layout.
Signpost Puzzle
Use every number exactly once and ensure each label from one through eight points horizontally, vertically, or diagonally to its successor.
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How to play
Use every number exactly once and ensure each label from one through eight points horizontally, vertically, or diagonally to its successor.
- Each cell has one immutable compass arrow, the cells for one and nine are fixed, and the remaining seven labels begin blank in a uniquely solvable deterministic layout.
- Enter an unused number from one through nine in an editable cell or clear a prior entry. Duplicate positive labels are rejected before they can corrupt the path.
- Use every number exactly once and ensure each label from one through eight points horizontally, vertically, or diagonally to its successor.
Strategy tips
- Work forward from one and backward from nine, intersecting each arrow ray with the unused cells that can also receive a valid predecessor direction.
- The successor can lie several squares away on the arrow's ray, not only in the neighboring cell, but a diagonal ray must keep equal row and column distance.
- With a short number interval unplaced, compare both the incoming ray and outgoing arrow for every candidate cell; uniqueness usually forces the middle labels together.
Complete guide
Rules, scoring, and strategy
Signpost Puzzle is a complete browser implementation with its own versioned rules profile. Place the numbers one through nine in a three-by-three arrow grid so every number points along its indicated ray toward the cell containing its successor.
Legal moves and game flow
Enter an unused number from one through nine in an editable cell or clear a prior entry. Duplicate positive labels are rejected before they can corrupt the path.
Winning and terminal positions
Use every number exactly once and ensure each label from one through eight points horizontally, vertically, or diagonally to its successor. With a short number interval unplaced, compare both the incoming ray and outgoing arrow for every candidate cell; uniqueness usually forces the middle labels together.
Practical strategy
Work forward from one and backward from nine, intersecting each arrow ray with the unused cells that can also receive a valid predecessor direction. The successor can lie several squares away on the arrow's ray, not only in the neighboring cell, but a diagonal ray must keep equal row and column distance.
Questions players ask
What is the objective in Signpost Puzzle?
Use every number exactly once and ensure each label from one through eight points horizontally, vertically, or diagonally to its successor.
Which moves are legal in Signpost Puzzle?
Enter an unused number from one through nine in an editable cell or clear a prior entry. Duplicate positive labels are rejected before they can corrupt the path.
What should I plan first in Signpost Puzzle?
Work forward from one and backward from nine, intersecting each arrow ray with the unused cells that can also receive a valid predecessor direction.