magicsquare_3x3: 873 -> 63 guesses. magicsquare_4x4: 13475456 -> 539910 guesses (all solutions). sendmoremoney_carry: 154 -> 6 guesses. sendmoremoney_naive: 633681 -> 4 guesses. zebra: 453 -> no guesswork!
sendmoremoney_carry: 154 guesses. sendmoremoney_naive: 633681 guesses.