The stat tracking sucks. And while I'm not normally into stats, this is one game I would have appreciated it.
The irony. A game about numbers... can't do simple mathematics.
I've solved 69 puzzles so far. It's credited me with a grand total of 18 mistakes (for the sake of argument, I'll assume I made that many.) That means, worst case scenario, I spread those 18 mistakes out over 18 puzzles. Which means, worst case, I've solved 69 -18 = 51 puzzles with zero errors. Worst case. It's credited me with 16 puzzles with no errors. For a pathetic 23.2 percent.