Math game 3+2 vs Numerical Tic Tac Toe

Welcome to the exciting world of 3+2-1, a math game that will make your brain work at full capacity! Get ready for an incredible connection where you will solve number puzzles and solve your math skills. Your task is to obtain the required number using numbers, addition and subtraction operations. But be careful, time goes by quickly and you must act quickly to complete all levels and win each one! Immerse yourself in the exciting atmosphere of the game with its vibrant graphics and simple controls. You'll sharpen your math skills, develop your logical thinking, and improve your answers as you solve increasingly difficult puzzles in each level. Go through a variety of themed worlds, unlocking new levels and becoming a real math genius. Compete with your friends, break records and become the best player in "3+2-1". deniz.kashin@gmail.com

Numerical tic-tac-toe is a variant of tic-tac-toe that replaces the traditional Xs and Os with odd and even numbers. Players alternate placing numbers, aiming to form a line that adds up to 15.  The game is played on a normal nine square tic-tac-toe board. The odd player begins with the numbers 1, 3, 5, 7, and 9. The even player begins with the numbers 2, 4, 6, and 8. Odd always goes first. The two sides alternate placing numbers on the board in empty squares. Numbers cannot be repeated. So, there will only ever be a single instance of each number on the board. The first player to put a number down that achieves a sum of 15 composed of three numbers in a row, column, or diagonal wins the game. Note, that two numbers adding to 15 is not sufficient. So, a 6 next to a 9 is not a win. *Features* - Play against an AI opponent - Play against a friend - Three levels of difficulty - Customizable colors *History* Numerical tic-tac-toe was invented in the late 1950s by American mathematician Ronald Graham. A similar game was contemporaneously invented by P.H. Nygaard. In 1990, George Markowsy wrote a computer program that solved numerical tic-tac-toe. He proved that 1 in the top middle slot is a winning first move for odd. In other words, in perfect play, odd wins the game. Markowsky published his findings in The Journal of Recreational Mathematics.