"An expert is someone who has made all the mistakes which can be made in a very narrow field." — Niels Bohr
"An expert is someone who has made all the mistakes which can be made in a very narrow field." — Niels Bohr
Look for digits that already appear 7 or 8 times on the board — they're the easiest to place last.
Look for digits that already appear 7 or 8 times on the board — they're the easiest to place last.