Nested Noughts
Noughts and crosses inside noughts and crosses. Every move chooses which board your opponent must play in next. Beat the computer at three levels.
How to play
- The big board is made of nine small noughts-and-crosses boards. You are X and move first.
- The square you play in a small board decides which small board your opponent must play in next.
- Win a small board with three in a row to claim it. If you are sent to a board that is already decided, you may play anywhere open.
- Claim three small boards in a row to win. If every board is decided first, whoever claimed more boards wins.
Tips and strategy
- Think about where your move sends the opponent, not only about the board you are playing in.
- Avoid sending the computer to a board where it can win immediately.
- The centre square of a small board is strong, and the centre board matters most for the big line.
- Sending the opponent to a decided board gives them a free choice, so do it only when you must.
FAQ
- What if the board I am sent to is full or already won?
- Then you may play in any open board.
- What happens on a drawn small board?
- It counts for nobody. It cannot be played in any more and it does not count towards anyone's line.
- How strong is the Hard level?
- It looks several moves ahead and scores board control. It is strong but not perfect, so a careful player can beat it.