Solve this ‘wordoku’ in the same way as a sudoku with letters instead of numbers (the nine letters appear once in each row, column and nine-square cell). Once solved, one of the overall diagonals contains the jumbled surname of a physical chemist, related to a famous conductor, whose research included vibrational spectroscopy and interstellar chemistry.

This week’s letters are: A E K L M P R S T

 

 

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