400 Train Tracks

Logic Puzzle Book for Adults: 200 Point-to-Point Tracks and 200 Loop Tracks, 6x6 and 8x8

400 Train Tracks is a 6 x 9 inch paperback of 400 train track puzzles for adults, in two kinds of grid. Part 1 holds 200 point-to-point tracks, where one track runs from the entry on the left edge to the exit on the bottom edge. Part 2 holds 200 loop tracks, where the track has no entry and no exit and closes back on itself. In both parts, the numbers say how many rails each row and each column carries. Each part has 100 grids 6x6, then 100 grids 8x8, with one solution per grid, checked by computer. The book gives the rules of each game and a grid solved move by move, and all 400 solutions are at the end. There are two grids per page, large enough to draw the rails in pencil and rub them out. In Part 2, the empty rows and the full rows are where you start.

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