Solve Rubik’s cube in how many moves?

Rubik’s Cube can be solved in 20 moves or less, despite over 43 quintillion possible positions. It took 35 CPU years to find all solutions. Other facts: 18 positions can be solved in one move, created by Hungarian scientist Erik Rubik, and fastest human solve is 5.55 seconds. Each Rubik’s Cube position can be solved […]

Possible chess moves: how many?

The number of possible chess moves is estimated at 10120, surpassing the number of atoms in the universe. The calculation includes illegal moves and is named after mathematician Claude Shannon. The fewest possible number of moves in a complete game is two for each player. The number of possible chess moves has been estimated even […]

4 moves in chess: how many possibilities?

Chess is a popular and ancient board game with origins in India. The number of possibilities in a game is too large to count, but there are 6 possible combinations for the first four moves alone. Chess has connections to other Asian strategy games and was famously defeated by a computer in 1997. Chess is […]

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