Geodesic
Inglenook shunting puzzles
Simon R. Blackburn1
1Royal Holloway University of London
The electronic journal of combinatorics, Tome 26 (2019) no. 2
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An inglenook puzzle is a classic shunting (switching) puzzle often found on model railway layouts. A collection of wagons sits in a fan of sidings with a limited length headshunt (lead track). The aim of the puzzle is to rearrange the wagons into a desired order (often a randomly chosen order). This article answers the question: When can you be sure this can always be done? The problem of finding a solution in a minimum number of moves is also addressed.
DOI : 10.37236/8297
Classification : 90C27, 90C47

Simon R. Blackburn  1

1 Royal Holloway University of London 
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Simon R. Blackburn. Inglenook shunting puzzles. The electronic journal of combinatorics, Tome 26 (2019) no. 2. doi: 10.37236/8297

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