Gomoku Speed Challenge

"Gomoku Speed Challenge" is a newly designed Gomoku game compared to those written in the past. Tight time limit will be set up so that players need to think and place each of their stone on the board more quickly than in the past. Player will received higher ranking (highest ranking at 'A') once they beat the computer in each game. Higher ranking of course will have shorter time limit. Take this challenge to play this game if you can think fast enough!

Below for those who have no idea on what is Gomoku / Gobang / Five in a Row......

Gomoku, also known as Gobang or Five in a Row, is an abstract strategy board game. It is played with Go pieces (black and white stones) on a Go board using 15×15 grid intersections. Players alternate turns placing a stone of their color on an empty intersection. The winner is the first player to form an unbroken chain of five stones horizontally, vertically, or diagonally.