Signpost
Must consecutive Signpost numbers touch?
No. The next number can be any distance away along the current cell’s arrow. The completed sequence visits all cells once, starting at 1. Follow the arrow from the earlier number, not from its destination.
Worked example
An east-pointing 7 can link to an 8 several columns to its right. A nearby 8 outside that line is not a valid successor.
What to check on your board
Apply the rule above to your current board, then verify the remaining puzzle constraints. The example explains a local deduction; it is not a solution to every randomly generated board.
Checking your next move
From the earlier number, follow its arrow across the entire permitted line and list possible successor cells. Do not stop at the first nearby cell unless another constraint requires it. After linking, check that the sequence still visits each cell only once.
Using this reference
For Signpost, read the rule and the worked example together before opening the game. Separate what the rule explicitly requires from what only seems likely on the current board. A useful next move is one you can explain from the visible constraints, not merely a pattern that looks familiar.
If you get stuck, isolate a smaller part of the position and list what is still possible there. After a move, check the affected rows, regions or connections again. The reference explains the documented rules; progress, controls and save behavior belong to the linked game.
Read the developer’s manual ↗ · Open the developer’s browser version ↗
Manual inspected: · Simon Tatham & contributors · MIT