Number and logic puzzle solvers
Enter your numbers or your board and get every solution, explained: the 24 game, the Countdown numbers game, magic squares, the 15 puzzle, Lights Out and the Tower of Hanoi. For letter puzzles there are the cipher solver, the Caesar cipher decoder, the cryptogram solver and the cryptarithm solver.
24 game solverEvery way to make 24 from four cardsCountdown numbers gameSix numbers, one target, the shortest workingMagic square solverComplete, check or generate any magic square15 puzzle solverShortest solution for any sliding tile boardLights Out solverFewest presses to switch every light offCipher solverCrack substitution, Caesar, Vigenère and Atbash codesTower of Hanoi solverFewest moves from any disk positionCaesar cipher decoderDecode any shift, or let it find the shift for youCryptogram solverCrack letter-swap puzzles and cryptoquotes, then fix any letterCryptarithm solverAlphametics like SEND + MORE = MONEY, all solutions
More: Cube solvers and timer · Sudoku and grid puzzles · Game solvers · All solvers