Solve a Hidato puzzle/Extended Tcl solution: Difference between revisions

This version handles even tricky cases where there are many possible pathschoices atof theeach startpath but only one leads to a solution (as in <tt>awkwardcase</tt> below). The core of this is the <code>ForkSolve</code> method, which clones the current object and speculatively searches forward from there. <small>(Note, you need a very recent build of Tcl 8.6 to make this work, as it depends on a feature change from 2012-03-27.)</small>