The King's Miracle
(Published on 16. March 2026, 12:17 by Rab3aron)
Rules
Normal 6×6 Sudoku: Place the digits 1–6 so that each row, column, and 2×3 box contains each digit exactly once.
Cells separated by a king’s move cannot contain the same digit.
All 2×2 boxes sum to the same parity.
The sum of the positive diagonal is divisible by 7, while the sum of the negative diagonal is not divisible by 4.
The sum of each of the marked diagonals is odd.
The four 5×5 window sums increase in reading order.
Note
The four 5×5 windows are r1–5 c1–5, r1–5 c2–6, r2–6 c1–5, and r2–6 c2–6. Their sums increase in that order: top-left < top-right < bottom-left < bottom-right.
Solution code: Row 1
Last changed on on 16. March 2026, 19:38
Solved by Cassinii, Vionix, Piff, Spooof, Simon Yuan, SKORP17, cmigas, Malakree, waxy, luna_vale, mse326, AzureFire, strangelyinsane, arteful
Comments
Last changed on 16. March 2026, 21:00
on 16. March 2026, 12:44 by Vionix
Wow that was harder than I expected!
Very beautiful puzzle.
on 16. March 2026, 12:38 by Cassinii
Excellent puzzle, and very rewarding when you complete it.
