Resolf puzzles consist of four triangles, with three numbers at the corners of each triangle and the sum of the three numbers in the center.
I first encountered them in a publication by Sanders Puzzles.
An example of a solved resolf looks like this:
Nr 1*/*****
Use the numbers listed below the triangle to make the sums
Sanders puzzles regularly also uses multiplcation:
Nr 2**/*****
And one can extend this machanism to all 40 basic arithmetic operations:
Nr 3***/*****
You can check your solution here
New puzzles are published at least twice a month on Fridays.
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