Your turn (X) — tap a cell.
On this page
Tic tac toe 4×4
4×4 tic-tac-toe stretches the familiar mark game onto a sixteen-cell board. Most house rules ask for four in a row (row, column, or diagonal). More glass means longer games and fewer forced draws than perfect 3×3.
A true playable 4×4 engine (grid + AI + Hint) is a later phase. This page explains the size rules and puts a live classic 3×3 above so you can still place marks now — same X/O rhythm, smaller glass.
When
When to use
You searched 4×4 / bigger grid; you want the rule difference before a new UI.
When not
When not to
Nested boards → ultimate tic tac toe. School “unblocked” wording → tic tac toe unblocked. Pure 3×3 play → play tic tac toe.
Defaults
Assumptions
Not a Google doodle clone. Live board today is classic 3×3. Four-in-a-row is the usual 4×4 win length we describe.
Steps
How
- Picture a 4×4 and aim for four marks in a line.
- Practice forks and blocks on the classic 3×3 above.
- Use Hint / Undo / New game as on any classic page.
- Come back when the real 4×4 board ships.
Worked notes
Examples
- Four X across a row under four-in-a-row rules → that side wins the 4×4 game
- You want nested mini-boards instead → open ultimate — different product from a flat 4×4
Watch-outs
Gotchas
- We will not fake a 4×4 screenshot as playable.
- Ultimate is nine mini 3×3s — not the same as a flat 4×4.
- Avoid treating this URL as a Google 4×4 brand mirror.
Nearby pages
Compare
Ultimate: ultimate tic tac toe5×5: tic tac toe 5×5Play: play tic tac toeStrategy: strategy
Controls
Quick controls
- New game — clear the board for a rematch.
- Hint — a cell and a short reason (not a cheat promise).
- Undo — step back a move while you practice.
- Vs computer / 2 players — mode pages lock the matching controls.
FAQ
Common questions
- Playable 4×4 today?
- Not yet. The live board is classic 3×3 practice; a full 4×4 engine is a later phase.
- How do you win on 4×4?
- Usually four in a row — across a row, column, or diagonal. Agree with your table if house rules differ.
- Same as ultimate?
- No. Ultimate is nine nested 3×3 boards with a send rule. This page is about a flat 4×4.
- Account required?
- No signup. Progress on the practice board stays in this browser.