Frequently asked questions

← Back Got a question or comment about Tenfold? If the below is unhelpful, email hello@tenfoldapp.com.
  1. How do you play Tenfold?

    You can view the rules of the game from the "How to play" screen. This can be accessed at any time by swiping right.

  2. What does it mean that rows are continuous?

    Pairs on continuous rows are trickier to spot but once you notice them they become really helpful in pairing up lots of numbers at a time.

    What is meant by continuous rows is that a row doesn't end when it reaches the right edge — it just keeps going down to the next row, as if reading lines of text, left to right, top to bottom. In that sense, the whole game can be seen as a single big row.

  3. Why can't I add the next round of numbers?

    The more numbers you've got in the game the harder it will be to win. If you see the warning sign and can't load the next round, this means you should try and find more pairs in the current game instead. You'll only be prevented from adding the next round of numbers if you've got more than nine potential moves remaining in the current game. Note, however, that nine potential moves doesn't necessarily mean you'll find nine more pairs in total — it just means that at this point in time, there are nine different pairs you could cross out.

    Here, for example, we see two potential moves: 3 & 7, and 7 & 7.


    By crossing out 3 & 7 though, we're left with zero moves to go.


    So, crossing out a pair could both increase and decrease the number of potential next moves.

  4. What's the difference between the random starting point and the 1–19 starting point?

    Tenfold started out as a pen-and-paper game popular in schools (scribbling numbers on paper looks very much like taking notes from a distance!). Players would always begin with the same 27 numbers, written out sequentially from 1 to 19, skipping the zeros. Although it's not random, this starting combination is easy to remember by heart, and the game could play out in many different ways depending on the choices you make in the first few rounds.

    If you managed to win once and did remember the exact moves you made, the 1–19 challenge obviously loses it's point. In these cases, use the random starting point. The level of difficulty varies, but the experience will be unique each time.

  5. I made a mistake. How do I undo my latest move?

    If you're on version 1.2 or higher (you can check under the dropdown menu on "How to play"), you can undo your latest move by swiping left. Note that you can undo one move only — but this includes both pairings and loading the next round of numbers.