Five-in-a-row (Piškvorky)

It's useless to describe this game. Its English name is Five-in-a-row. The most interesting was to develop a good computer strategy. The best so is the one playing under name "CPU Kus". I have to admit it's not my work (it's written by Martin Kusak), my strategies are named "CPU 1-3" ("CPU 3" being the best of them).
Technologies used: