Easy Train Tracks Puzzles

A gentle start: 6×6 grids

Easy puzzles use a 6×6 grid, so the whole route is usually 12 to 20 squares long and you can hold most of it in your head. They are the right place to learn how the row and column numbers talk to each other before the grids get bigger.

Each one is graded by our logic engine as solvable with the most basic techniques: filling rows and columns that are full, crossing out lines that are already satisfied, and using the fact that every track square joins exactly two neighbours. You will not need parity arguments or “what if” tests here.

How to approach an easy grid

Look for a 0 first: that whole row or column is empty, so mark it with Xs. Then look for numbers that equal the grid width; every square in that line is track. Around the given pieces, follow the track as far as it is forced: each end of a given piece must continue into the neighbouring square, and next to an edge or an X there are fewer ways for it to go on.

When two ends of your track come close, check the counts before you join them. Joining them early would finish the route with squares still owed to some row, which is not allowed.

Ready for more?

Most people find they can finish an easy grid in two to five minutes after a few tries. When that happens, the medium 8×8 puzzles are the natural next step, and the daily puzzle gives you an easy grid every Monday and Tuesday.