I've made the existing optional solver diagnostics appear as the
verbose output of the solver program. They're not particularly legible
at the moment, but they're better than nothing.
OS X is beginning to show a warning when a 32-bit application is
opened, so it's high time that this gets enabled. Fix a clang warning
exposed by this build.
Based on a web game I saw a few years ago, and dashed off this weekend
after I thought of a way to write a good (though not quite optimal)
heuristic solver, here's a random little thing not quite in the same
line as the most usual kind of Puzzles fare: instead of making you
scratch your head to find any move to make at all, it's easy to find
solutions in principle, and the challenge comes from having to do so
within a move limit.
