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Super Tic-Tac-Toe: 9 boards in 1. Beat the Minimax AI or challenge friends online. Free strategy game. Ultimate Tic-Tac-Toe — the most strategic version of tic-tac-toe, right in your browser. 🎮 WHAT IS ULTIMATE TIC-TAC-TOE? Forget regular tic-tac-toe. Ultimate Tic-Tac-Toe (also called Super Tic-Tac-Toe) is a 9×9 grid made of nine 3×3 boards. To win, you must claim three small boards in a row — but here's the twist: the square your opponent picks in a small board determines which board you must play on next. Every move is both an attack and a trap. HOW TO PLAY • Win a 3×3 board by getting three in a row (just like regular tic-tac-toe) • The square you play sends your opponent to the corresponding large board • Win three large boards in a row to win the game • If you're sent to an already-won board, you get a free move anywhere 🤖 3 GAME MODES ▸ Play vs AI — challenge the Minimax algorithm with Alpha-Beta pruning. Three difficulty levels: Easy, Medium, Hard. Can you beat Hard mode? ▸ Local 2-player — play with a friend on the same computer ▸ Online multiplayer — host a room, share the code, play with anyone anywhere via WebSockets ✨ FEATURES • Clean, minimal interface — nothing distracts from the strategy • Dark and light themes • Sound effects (toggle on/off) • English and Russian interface • No account required — just click and play • Free, no ads, no data collection 🧠 WHY ULTIMATE TIC-TAC-TOE? Regular tic-tac-toe is solved — there's always a draw with perfect play. Ultimate Tic-Tac-Toe is genuinely hard. The AI uses Minimax with Alpha-Beta pruning, the same technique used in chess engines. On Hard mode, it plans several moves ahead. Beat it if you can. Perfect for: • Quick brain training during breaks • Playing with a friend without needing an account or app • Strategy game fans looking for something fresh and challenging