absolute annihilation
(Published on 6. December 2024, 06:12 by aqjhs)
- Normal sudoku rules apply.
- Shade some cells so that the shaded cells form a single orthogonally connected region and no 2x2 area is completely shaded or unshaded. Unshaded cells must also form a single orthogonally connected region. If D is a digit in a shaded cell the value of that shaded cell is -D. Values of non-shaded cells are the same as the digit they contain.
- Values in cages must sum to the indicated total. Digits cannot repeat inside a cage.
- Cells on an arrow have a value sum equal to the value of its circle.
- Clues outside the grid show the value sum of the indicated diagonals.
- Cells joined by a black dot have values that are in a 1:2 ratio. Not all possible dots are given.
See also:
Solution code: The digits along the shortest path of orthogonally adjacent cells inside the same region (shaded/unshaded) between r2c8 and another instance of the same digit (also inside the same region). Start at r2c8 and include both end points.
Comments
on 20. February 2025, 16:52 by jarsp
Incredible setting and very difficult. I need a sleep now
on 7. December 2024, 10:19 by EFlatMinor
Very challenging, but happy I kept working at it. Satisfying solve, nice puzzle!
on 6. December 2024, 18:24 by Fool on Hill
Fun puzzle - I had to look in some unexpected places to make progress.
on 6. December 2024, 12:03 by Snookerfan
Insane puzzle in the best way possible. My brain has been absolutely annihilated. Thank you
on 6. December 2024, 10:04 by lmdemasi
This was quite lovely. Very hard, but also quite fair. Thank you for setting it!
