Sudoku 129 | Pro |

(10 marks) Perform pencil-marking (candidates) for cells in row 1 and block 1 (top-left 3x3). Present candidates succinctly.

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"I didn't write that," Thorne whispered. His handwriting was messy, distinct. The title was printed in a sharp, jagged serif. (10 marks) Perform pencil-marking (candidates) for cells in