![Num3ers](/_next/image?url=https%3A%2F%2Fpackage-service-repository-live.elo-games.com%2Fv3%2Fassets%2Ftrio%2F1.1.11%2F480%2Fbackground.png&w=3840&q=75)
21 = 3 * 5 + 6, that sounds easy. But unfortunately 3, 5 and 6 are not lying close to each other in a field of 40 numbers. So there must be another combination of three numbers, that equals 21. Beware of your time! Finally, there it is: 4 * 6 - 3 also equals 21 and all there numbers are in a diagonal. Go on! The next exercise is already shown.
A game from: Andreas Lindenberg