CAROL’S CUT-OUT-AND-KEEP GUIDE TO TRAIN TRACKS

YOU are the engineer, laying an railway line from Village A to Village B. The track must never cross over itself. It is a single continuous line — no buffers, no forks. That’s it.

Except... you have to ensure that the right number of track pieces go in each row and each column of the grid. A number at the top of each column and at the side of each row tells you how many. The pieces of track can be straight or curved into a 90-degree bend — up or down, left or right.