Path Finder

Press on S and drag (or tap cell by cell) to draw one path to E that fills every open cell exactly once. An arrow cell must be left in its arrow's direction. Drag back to undo.

What is a Hamiltonian path puzzle?

A Hamiltonian path visits every node in a graph exactly once. Path Finder applies this concept to a grid where you must travel through all cells without revisiting any.

How many levels does Path Finder have?

36 levels: 12 Easy (4x4), 12 Medium (5x5) and 12 Hard (6x6). Every level is checked by a solver, and every Hard level has exactly one solution.

Is Path Finder free to play?

Yes, Path Finder is completely free to play in your web browser with no downloads or accounts required.

About Path Finder

Path Finder is a logic puzzle where you must draw a continuous path that visits every cell on the grid exactly once. Starting from a designated cell, you extend the path one step at a time in cardinal directions, aiming to cover the entire board without revisiting any cell or getting stuck in a dead end. The concept is based on the Hamiltonian path problem, a foundational challenge in graph theory and computer science. Small grids offer a gentle introduction, while larger boards require deep lookahead thinking and backtracking strategies. Later puzzles add walls and arrow cells, which must be left in the arrow's direction, and every Hard puzzle has exactly one solution. It is a deeply satisfying puzzle that rewards patience and systematic exploration.

How to Play

Press on the S cell
Drag through neighbouring cells (or tap them one by one); drag back to undo
Leave each arrow cell the way its arrow points
Reach E after filling every open cell

Path Finder

Easy 4x4

Medium 5x5

Hard 6x6

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