ANTI-KNIGHT: Cells a knight's move apart cannot contain the same digit.
UNDERFLOW: Each letter represents a different digit.
Otherwise standard Sudoku rules apply.
Solution code: row 9
on 11. August 2024, 21:06 by Shuhua Milk
Nice!
on 8. December 2023, 12:03 by PierreTombal
I really need to learn to be more punctual when reading the instructions - shaded cells do not reference digits in another box.
on 8. December 2023, 01:09 by steveire
Brilliant and astonishing puzzle :).
---Thank you for your generous comment, I'm glad you enjoyed it. ---ATK
on 7. December 2023, 07:38 by ozgaz
Ouch - this one was tougher than normal but I enjoyed the challenge. Thanks atk
---Yeah, it's obviously a bit trickier than I intended. I hope it didn't ruin the experience too much. ---ATK