123 Blocks
(Published on 21. March 2023, 22:09 by shinggaming)
Normal sudoku rules do not apply. Divide the grid into rectangular regions. Inequality signs point to the region of the smaller size. Number the cells in the region from 1 to N, where N is the size of the region. Digits can repeat in the same row/column. The digits 1, 2, and 3 must appear at least once in each row and column. Cells separated by a chess king's move cannot contain the same digit. Clues outside the grid indicate the sum of the digits along that diagonal.
Links:
Solution code: Row 6 and Row 8 (no spaces)
Solved by Gryllulus, Dermerlin, kublai, misko, Jaych, CrippledLamp
