Hi Tom;

The Timesaver is a switching puzzle layout developed by the late John Allen. 
Details here:

http://www.wymann.info/ShuntingPuzzles/sw-timesaver.html

Pieter E. Roos


--- On Tue, 1/4/11, Tom Keller <[email protected]> wrote:

> What's a time
> saver?   Tom Keller



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