Choochoo puzzles, the new simple idea dragging puzzle from a team led by Piotr Iwanicki, is one of the latter. It sounds like a cross between a candy bar and a maze you'd find in Highlights for Children... kind of inappropriate for a fun little game with only a tenuously abstract connection to railways. Fortunately, the simple mechanics of Choo Choo Puzzles present a worthy challenge for puzzle-lovers of all ages.
In each level, the goal is to drag the red chain to the exit, using the [mouse]. However there are other chains blocking your way, and rules to follow. You can move both the red chain and other chains to clear a path, (and indeed, they will push each other, the bumper at the ends showing which way they will travel at intersections) but you cannot make any "sharp" turns... i.e. on the hexagonal grid, you can drag a chain through a 120 degree angle, but not a 60 degree one. The goal is to complete each of the 25 levels in as few moves as possible, for which medals are awarded for especially concise performances.
