Logic Masters Deutschland e.V.

F-Puzzles

Standard Sudoku Rules apply to the final numerical layout. Each long diagonal also contains all the digits from 1-9.

An Anti-King restriction also applies: Any two cells that a chess King could move between in one turn cannot contain the same digit.

Digits in cages must sum to the total in the upper-left corner of the cage. (Standard Killer Sudoku rules.)

And digits on an arrow must sum to the digit in the circle at the end of the arrow. Digits may repeat where allowed by Standard Sudoku. (Standard Arrow Sums.)

Finally, the grid contains additional grey lines which function as Arrow Sums, but the cell containing the sum is not identified by a circle, and it is not necessarily at either end of the grey line. For example, a grey line reading 2-4-7-1 is legitimate, with the 2, 4, and 1 summing to the 7 in the middle. Digits may repeat on grey lines where allowed by Standard Sudoku.

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Setter's Notes :: October 24, 2021 :: Good to be back after a few months of work, travel, illness, and even a brief hospitalization. I worked on this one a lot, trying to make it solve with just the solid grey lines, but gave up and inserted some traditional arrows and even a couple of cages. I estimate it at 2 stars.