Finally, I tried your fourth example, and I got a result that was very close to yours. I was missing a few Xs shown in your grid, but the rest was the same.
I guessed that Music Ally was on Sunday, and I got the following:
0  Saturday  Komedie Kiev  Gibson
2  Friday  Old Siam  Burdette
4  Thursday  Aunt Agony  Grand
6  Wednesday  Two Towers  Roxie
8  Sunday  Music Ally  Porter
This seemed consistent with the clues.
Just like the other examples, this one was just one X away from a solution.
In this case, there were several places where a single X led to the solution shown above. That was surprising given all the open spaces in the partial solution.
I didn't look for another solution. The missing piece of logic is probably the key to ensuring a solution without guessing AND uniqueness.
Last edited by zenobia43; 08042014 at 08:07 PM.
