This sudoku-inspired puzzle contains a class of chemicals that got the Nobel nod
Solve this wordoku in the same way as a sudoku with letters instead of numbers (each of the nine letters in each row, column and nine-square cell). Once solved, the overall diagonals can be rearranged into the name of a group of molecules recognised in a Nobel prize a few years ago.
This week’s letters are: A E M N O R S T X




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