Ultimate Tic-Tac-Toe

An interesting and more challenging version of the classic tic-tac-toe game! A game for those who want to see tic-tac-toe in a new way!
The playing field consists of small standard fields, victory in which only brings you closer to victory in the large field. Each move you make not only changes the state of the field, but also guides the opponent in his next move. And in the end, even a seemingly successful move at first glance may not work in your favor.
Think over your moves, practice playing games with a computer of varying difficulty. And also play with friends in two-player mode.