jpersky wrote:
As a bit of a brain exercise, I've been attempting the 12x12 without using any pencil marks. I have about a 50% success rate so far. Just wondering if anyone else does this? Perhaps we can have a "boss mode" version that prohibits pencil marks and gives extra points for a clean solve?
A friend of mine and I used to attempt every puzzle without pencil marks, success was a 'clean solve' while succumbing to the mnemonic crutch of notetaking resulted in a 'dirty solve'. I tied Dave often enough, but I don't think I ever had more clean solves in a day than he did.
Anecdote aside, I sometimes attempt large puzzles without pencil for an extra challenge but don't think I'd do it on a daily basis for extra points - there's only so much time in the day.
And then there are the 'business rules' and the coding...