🧠Cerebite

Classic Board Games

Timeless strategy, zero setup — play against the computer or pass-and-play with a friend.

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Othello (Reversi)

📖

How to Play Othello

#️⃣

Tic-Tac-Toe

🔴

Connect Four

🔢

Sudoku (play & print)

💣

Minesweeper

🔀

15 Puzzle (sliding)

🖼️

Nonogram (Picross)

Every game here runs entirely in your browser with a computer opponent that actually plays well — three difficulty levels, from friendly to genuinely hard. Othello rewards long-term board control, Connect Four is all about seeing threats one move earlier, and Tic-Tac-Toe is the perfect warm-up.

Prefer a human opponent? Each game has a two-player mode on the same device — no accounts, no waiting for matchmaking. Great for killing five minutes with someone next to you.

Frequently asked questions

How strong is the computer opponent?
On the hardest setting the bots search several moves ahead (minimax with pruning) — they punish one-move thinking, block obvious threats and most casual players lose more than they win.
Can two people play on one phone?
Yes — switch to 2-player mode and take turns on the same screen. It works on any phone, tablet or computer.
Where do I learn the rules of Othello?
The Othello page includes an interactive tutorial that teaches captures, corners and common openings step by step — five minutes and you're ready to play.
Which game should a beginner start with?
Start with Tic-Tac-Toe to warm up — the rules take seconds and you'll quickly learn to spot forks. Move on to Connect Four, where reading threats one move ahead is the whole game, and finish with Othello, the deepest of the three with its long-term board control.
Do strategy board games help with thinking skills?
They give you real practice in planning ahead, spotting threats and considering what your opponent wants — you exercise those habits on every single move. Whether that transfers into general intelligence is not proven, but as a five-minute break they are certainly a more active choice than scrolling.
Any tips for beating the computer at Connect Four?
Fight for the center column — most winning lines pass through it. Before each move, check what your opponent gets if you play there, and look for double threats: two ways to win at once that no single block can stop. Diagonals are the ones players miss most.