Saturday, 27 December 2025

Puzzle No. 488: Thermo - X Sums Hybrid Sudoku

 

Rules: Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box. 
There are some thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.
The clues outside the grid indicate the sum of the first X digits placed in the corresponding direction, where X is equal to the first digit placed in that direction. 



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