Swich/Position Sum Combo
(Published on 27. August 2026, 06:34 by Sudonym)
Mixed rules. Link to puzzle.
sudokupad.
There is a video solution and more puzzles on youtube channel "sudoku spot"
video solution.
Inspiration for position sum rule thanks to some of Richard's latest puzzles.

Rules:
Normal sudoku rules apply.
Outside red sums are the sum of the first n numbers where n is the position of the 9 looking from that end. E.g. if the 9 were in the 3rd position you sum the first 3 numbers. 9 in the 5th position sum the first 5 numbers.
Outside green sums are sandwich sums...the sum of the the numbers between the 1 and the 9.
Cells separating white dots are consecutive numbers.
Solution code: Row 9
Last changed on on 27. August 2026, 13:55
Solved by SeveNateNine, marcmees, RickiFerrara, KlausRG, lina_hyena, RockyRoer, cornuto, jalebc, redgecko, josemadre, SKORP17, BigHead, SPOU1, kangaroo, PippoForte, mw238, FireShot7, Gunkan, WhiteWarat, Peteronium, mjozska1985, KingGAEMING, Nagesh, felix4626, MetalPig, Montinox, Saskia11, RobotChicken
Comments
on 27. August 2026, 21:48 by BigHead
Great puzzle thank you!