Instructions: Math puzzle game where you need to set numbers from 1 to 10 correctly. You will have 11 levels in this puzzle to train your brain. Set numbers in pyramid circles so that sum of numbers on every triangle edges is equal to given level sum shown in a big square.
First click on an empty circle then choose a number from the number selection box to the right of the pyramid. Use the check button to see your progress.
There is a trick to editing this puzzle. Click on the circle you want to change, the number will go back into the numbers box. Click the "X" in the bottom corner of the numbers box and that will free you up to select another circle to put a new number in that circle.