Deduction Games

Games won by reasoning from clues rather than by speed. Bulls and Cows is the classic: every guess at a hidden number tells you how many digits are right and in the right place. Codebreaker Market puts a price on every guess, Minesweeper Duel has two players sweep one field while hiding traps for each other, and Nonogram Nemesis turns a picture-logic grid into a race against a computer rival. Koan is the strangest of them: a hidden rule sorts words, and you work out what it is by testing it.