Inglenook Sidings


Inglenook Sidings, created by Alan Wright, is a model railway train shunting puzzle. It consists of a specific track layout, a set of initial conditions, a defined goal, and rules which must be obeyed while performing the shunting operations.
More broadly, in model railway usage inglenook may refer to a track layout that is based on or resembles the Inglenook Sidings puzzle.

Details

The track is based on Kilham Sidings, on the Alnwick-Cornhill branch of the North Eastern Railway. The sidings should be able to accommodate 5, 3, and 3 wagons, the leading spur accommodating 3 wagons and the locomotive. For the original version of the puzzle there are 8 wagons in the sidings, the rule being: