...we perform a depth-first search of the amb choice tree, and whenever we brush against failure, we backtrack to the most recent node of the tree that offers a further choice

That statement screams, regexes, or rather a creative use of them, akin to:

The N-queens problem using pure regexes
Pure regex Hamiltonian Circuit solution


-Enlil

In reply to Re^2: How implement AMB in perl? by Enlil
in thread How implement AMB in perl? by xiaoyafeng

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