Coloured sudoku #4
(Published on 31. August 2026, 17:08 by Sudonym)
Coloured sudoku. Easy puzzle. Mixed rules. Link to puzzle.
sudokupad.
There is a video solution and more puzzles on youtube channel "sudoku spot"
video solution.

Rules:
Normal sudoku rules apply.
Cells of the same colour are the same value.
Numbers outside the grid are the sum of the numbers between 1 and 9 in that row or column (Sandwich sums)
There is only one 9 on the grids 2 diagonals.
Solution code: Column 9
Last changed on on 1. September 2026, 16:31
Solved by Xaug, zonny, Sanfran, rictech, buzzard, sparkymanu, linubik, anothermember, BULL-TT, mijq, TeddieMilo, superkinkel, Nay, ggwp, Onyx, Jayem, metacom, Krokant, lifeless, jalebc, dielilla, BBoris, ... shifman23, MurtyQ, sacklunch, clapslat, Matti64, jgarber, cfunkmi, Joyofrandomness, Pianoman, mw238, Gydoku, vlin, ofsmul, Tompzini, MathingChar, Terrapin, rcg, _Sofia_, R0X, Raistlen, BakBak
Comments
on 1. September 2026, 23:04 by RockyRoer
Not too tricky -- except that my typical strategy for sandwiches is coloring the crusts one color and the non-crusts another, so the pre-colored cells interfered a bit. But, using letters worked.
Last changed on 1. September 2026, 22:38on 1. September 2026, 22:33 by TomT
That was great.I did it with letters in place of colors.