FREE EDITION No Adds and it's free. No high scores, no computer player, no stats. Play it with a friend.
DEDUCE "Faster than Tic-Tac-Toe, but as complicated as chess." The simplicity of the rules can entertain children from ages 4 to 104. Taking only seconds to play, the unending complexity of Deduce makes the game the perfect mobile phone companion. Multiple player strength levels make Deduce a lifetime game for small children through serious adults. Compare your high scores to people around the world.
Deduce has a maximum of 8 moves, one move less than the children's game of Tic-Tac-Toe. Two players compete by placing QUEENS on squares not in the same row, column, or diagonal of another QUEEN (ie., not being controlled by another QUEEN of either side.) Last player to fill the board, taking the last available square, wins the game.
To win a Deduce Match, a player must win six games by a margin of two. Starting moves alternate between the players. (Tennis is scored the same way.)