Tic-Tac-Go Guide: Rules, Tips and Practice

Tic-Tac-Go is a daily logic puzzle that mixes tic-tac-toe with box pushing. You do not place marks: the X and O tiles are already on the board, and you walk around pushing them until three O's stand in a row. This guide explains the rules, the habits that solve most boards, and the usual reasons a puzzle feels impossible. Below the guide you can practise the same kind of thinking on Sun Line, a free push puzzle we made ourselves.

This is an independent guide. We are not affiliated with the makers of Tic-Tac-Go, and we do not host or copy the game.

Practice puzzle: Sun Line

Level 1 of 5

First Light

Moves: 0 · Best possible: 5

Levels:

Click the board, then use the arrow keys. Swipe on a phone.

How to play Sun Line: move the fox with the arrow keys (or swipe). Walk into a sun or a cloud to push it one square, if the square behind it is free. Line up three suns across or down to win, but if three clouds line up first, the storm wins. Rocks never move. There are 5 levels; each shows the fewest moves it can be solved in, checked by a computer solver. Stuck? Z undoes a move and R restarts.

How Tic-Tac-Go works

  • You move one piece. You control a single O and move it one square at a time: up, down, left or right (arrow keys on a computer).
  • You push, you never pull. Walk into an X or an O and it slides one square, but only if the square behind it is empty. You cannot push two tiles at once, and you cannot push a tile off the board.
  • Goal: get three O's in a line, across or down.
  • Trap: if three X's end up in a line, the puzzle is lost, so every push of an X has to be safe.
  • A new board every day. Everyone gets the same puzzle, so you can compare how many moves you needed with friends.

A method that solves most boards

  1. Pick the finishing line first. Before you move, find a row or column where three O's could end up. Usually two O's are already close; the puzzle is about the third.
  2. Work backwards from the last push. For an O to slide into the gap, you have to stand on the far side of it. Ask: "Which square do I need to reach to make that final push?"
  3. Clear the path, then push. Most moves are walking, not pushing. Plan a route to the pushing square that does not disturb tiles you have already placed.
  4. Check the X's after every push. Before moving an X, look along its new row and column. Two X's with an empty square between them are a warning sign.
  5. If your O counts, use it. In many boards the piece you control can be part of the line. Standing in the right square can be the final move.

Why you get stuck (and what to do)

  • A tile pushed against the edge or a corner is stuck there. Since you can only push, a tile on the edge can never be moved back towards the middle along that line. Avoid pushing O's to the edge unless that is where the line goes.
  • Two tiles side by side against a wall form a block you cannot separate. Leave a gap between tiles you will still need.
  • You blocked your own path. If the square you must stand on is now behind a tile, you will need a long way around or a restart.
  • The X line sneaks up on you. The losing line often forms from a push you made to clear a path, not from the final move. Slow down on those "harmless" pushes.
  • Restart early. If you notice a stuck O, restarting saves time compared with trying to rescue the board.

Tic-Tac-Go answer for today

We only publish a solution after we have played the day's board ourselves and checked it works, so there is no daily answer on this page yet. Some sites post move lists that turn out to be for an older board: if a solution does not match your starting position after the first few moves, it is for a different day. The method above, plus the practice levels below, will get you through most boards on your own.

Frequently asked questions

What is Tic-Tac-Go?
A daily puzzle where you move one piece around a grid and push X and O tiles. You win by lining up three O's and lose if three X's line up.
Can I pull a tile back?
No. Tiles can only be pushed, one square at a time, into an empty square. That is why a tile pushed into a corner is usually stuck for good.
Is there a new Tic-Tac-Go puzzle every day?
Yes, there is one board per day and it is the same for everyone.
Is Sun Line the same game?
No. Sun Line is our own puzzle with its own levels and art. It uses a similar push-three-in-a-row idea: push suns into a line and never let three storm clouds line up. Rocks block the way, and your fox does not count as part of the line.
Where can I play Tic-Tac-Go?
On the official game's own page. We do not host it here; this page is a guide plus our own practice puzzle.

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