Train Tracks Puzzle Game

How to play

1. The track enters at A and leaves at B, as one unbroken line.
2. The number beside each row and below each column is how many squares the track uses in that line.
3. Printed pieces are part of the answer. The track never branches, crosses itself or makes a loop.

New to the puzzle? The rules and worked example take two minutes, and the strategy guide covers the deductions that crack the bigger grids.

Daily puzzle and streaks

The daily puzzle changes at midnight on your device and gets harder through the week. Solve it on consecutive days to build a streak. Prefer a quick game without loading anything? Try the daily puzzle on the page.

Choosing a level

The 140 levels are split into four sizes. Easy 6×6 grids take two to five minutes and only need counting: fill full lines, cross out finished ones, follow the track where it is forced. Medium 8×8 grids double the area and sometimes need the parity rule. Hard 10×10 grids start with very few pieces and may need one short “what if” step. Expert 12×12 grids give only what a unique answer requires and can take three quarters of an hour.

If you are new, play three or four easy grids before moving up. The jump from 6×6 to 8×8 feels bigger than it looks, because the route bends far more often and you have several loose pieces of track to keep track of at once.

Using Check and Hint well

Check tells you how many squares are wrong so far and shows them in red, without giving anything else away. It is most useful just before a long chain of moves, so you do not build on a mistake. Hint reveals one correct square in purple. Try Check first: often the red square is the reason you are stuck, and fixing it gets you moving again without a hint.

When you do take a hint, ask why that square had to be what it is. The answer is almost always a row or column count you had not used yet, and spotting it is how the next puzzle gets easier.

What the puzzle exercises

Train Tracks is a planning puzzle. You keep a whole route in mind, test each move against two sets of numbers at once and rule options out by showing they lead to a contradiction. The same habits of counting, checking and reasoning “if this, then that” carry over to other logic puzzles, and the bigger grids reward patience far more than speed.