Solve this ‘wordoku’ in the same way as a sudoku with letters instead of numbers (the nine letters once in each row, column and nine-square cell). Once solved, one of the overall diagonals contains the jumbled surname of one of the originators of organometallic chemistry. What is his name, and who is the current holder of a chemistry chair named after him?

This week’s letters are: A D E F K L N R S

 

 

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