Co-op Sudoku: solve it together

Why it is different

Neither player can solve it alone. You have to decide which clue is worth asking for, ping the cell you are working on, and trust each other.

How Split Sight works

1. You and your partner get the same board, but the clues are divided between you. A cell showing ? holds a clue that only your partner can see.
2. Either of you can fill in any empty cell.
3. When you need a hidden clue, ask for it. Your partner shares it and it appears on your board. You have 6 shares for the whole game.
4. Ping a cell to show your partner where you are working or where you need help.
5. Finish the board together to win.

Getting the most from your shares

Six shares go quickly, so the skill of the mode is choosing them. Ask for a clue in a row, column or box that is nearly complete on your side, where one more digit would let you finish it. A clue in an empty corner of the board tells you far less.

Often you do not need to ask at all. If your partner fills a cell that you could not have worked out, that tells you something about the clues they can see. Good pairs solve a lot of the board this way.

Who it is for

Split Sight is the mode for people who would rather play with someone than against them: couples, friends, a parent and a child. It also suits players of different levels, because the stronger solver cannot simply take over. They are missing half the clues.

It is not ranked, so there is no rating to lose. If you want to play it with someone in particular, create a private room and send them the link, as described in Sudoku with friends.

New to Sudoku?

Co-op is a friendly way to learn, because your partner can point you to the right part of the board. The rules take five minutes: see how to play Sudoku.