Score
0
Time
150s
Best
—
Logic puzzle. Fill the grid with 1 to 25 so that consecutive numbers are always next to each other — building one unbroken path that snakes through every cell. Some numbers are given. Solve as many as you can in 150 seconds.
The grid holds the numbers 1 through 25, and a few are already placed. Your job is to fill in the rest so that every number from 1 to 25 has its neighbours right beside it: 2 must touch 1, 3 must touch 2, and so on, moving only up, down, left, or right. Done correctly, the numbers trace a single continuous path that visits every cell exactly once.
Tap an empty cell to select it, then tap a number on the pad below to drop it in. If that number was already somewhere else, it moves to the new cell. Tap the ✕ key to clear the selected cell. The given numbers are fixed and cannot be changed.
Work outward from the clues: between two given numbers that are a few apart, there is usually only one way to thread the path. The puzzle is solved the moment the whole chain from 1 to 25 connects up — then a fresh grid appears at once. Solve as many as you can before time runs out.
Bridge between nearby givens. If you can see a 7 and a 10 a short distance apart, you only have to place 8 and 9 between them, and the path from one to the other usually has just one route that fits — fill those gaps first and the grid opens up.
Count the distance. Two given numbers that differ by d must be exactly d steps apart along the path, and the shortest grid distance between them can never be more than d. When the gap equals the straight-line distance, the connecting numbers are forced into a straight or near-straight line with no freedom.
Use the walls and corners. The path must visit every cell, so a corner cell has only two neighbours and is easy to pin down — whatever number lands there is squeezed between just two possible predecessors and successors. Edges are similarly constrained, so resolve the border before the open middle.
Work from both ends of a gap at once. If 1 is given in one place and 4 nearby, lay 2 out from the 1 and 3 back from the 4; they have to meet. Alternating like this from known anchors is faster than guessing a long stretch in one direction. In the timed mode, finish the forced bridges quickly and only pause where a gap genuinely branches.