Sudoku’s are fun! For this reason, we included one if one of our traditional easter puzzles, and even made nostalgic 8bit video games of them in the past. If you enjoy solving them the old-fashioned way on a hard copy, it’s recommended to have a pencil handy, as you might need to address how to deal with multiple options.
A couple of years ago, I didn’t have a pencil nearby and used a pen instead. Wrong choice! I ended up in a situation where I had to guess and my pen made that guess final. The good thing about guessing in sudoku’s is that you can progress quite quickly, the bad thing is that you only see the consequence of your guess at the very last moment. So, that’s what happened to me. I had to guess and at the time my error was obvious, it was too late to go back. This frustrated the hell out of me, and I felt I needed to compensate.