Tic Tac Toe ~ vs Numerical Tic Tac Toe

***Awesome Tic Tac Toe Game!!!!*** Tic Tac Toe Free is free classic puzzle game also known as "noughts and crosses or sometimes X and O". Tic Tac Toe Free supports one player and two player gameplay, so you can play against another human or against your iOS device. Our Tic Tac Toe Free game offers: - 3 different game levels (game difficulties) - One player (play against your iOS device) - Two players (play against another human) - Player name configuration The Tic Tac Toe game is a game for two players, called "X" and "O", who take turns marking the spaces in a 3×3 grid. The player who succeeded in placing three respective marks in a horizontal, vertical, or diagonal row wins the game. The Tic Tac Toe is a great way to pass your free time whether you're standing in a line or spending time with your kids. Stop wasting paper and save trees. The game has the below alternative English names. * Tick-tack-toe, tic-tac-toe, tick-tat-toe, or tit-tat-toe * Noughts and crosses or Naughts and crosses * Exy-Ozys, Xsie-Osies * Xs and Os * X and O * O-X TERMS OF USE, PRIVACY POLICY, SUBSCRIPTIONS Tic Tac Toe app offers a monthly subscription (1 month), a month six month subscription (6 months) and a yearly subscription (1 year) called Premier. If you subscribe in another currency, the price may vary slightly if your bank charges you a conversion fee. Payment for your subscription will be debited from your account after your purchase is confirmed. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Find out more about our general terms of use at https://www.mangokingsoftware.com/wp/acffg-terms-of-service/ Find out more about our privacy policy at https://www.mangokingsoftware.com/wp/acffg-privacy-policy/

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.