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There are 60 squares of size 1x1. There are 35 squares of size 2x2. There are 12 squares of size 3x3. There are 3 squares of size 4x4.
A total of 60 + 35 + 12 + 3 = 110.
Puzzle 3
Starting in the bottom left corner and moving either up or right, one square at a time, adding up the numbers along the way, what is the largest sum which can be made once you have reached the top right corner?
Each empty white square in the grid contains one of the numbers 1, 2, 3,..., 8. Each of the horizontal and vertical equations must be true and each number must be used exactly once.
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