Solving Suguru (Tectonic) puzzles
1
each cell (thin lines) contains a single integer.
2
each container (cage, block) (thick lines) contains the non-repeating integer starting from 1 to the size of the container.
3
adjacent (including diagonally touching) cells do not have the same number.
The object is to fill all empty squares so that the numbers 1 to N (where N is the number of rows or columns in the grid) appear exactly once in each row and column and the numbers in each block produce the result shown in the top-left corner of the block according to the math operation appearing on the top of the grid ...