[ad_1]
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 a 19th century French chemist, pharmacist and botanist attributed with the isolation of gallic and ellagic acids, pyrogallol and chitin.
This week’s letters are: A B C E N O R S T
[ad_2]
Source link
