Weekly
Knight's Blackout
0:00
✓
Info
9
24
8
11
5
17
10
3
12
11
22
14
6
9
15
21
5
18
18
16
15
12
9
12
13
20
12
11
12
14
11
5
5
Weekly · 29 June
Knight's Blackout
Extreme
Time
0:00
Target
26:00
✓ Clean
0/81
Show mistakes
Sound
Rules
Normal sudoku rules apply: fill every row, column, and 3×3 box with 1–9.
Cells a chess knight's move apart cannot contain the same digit.
Cages sum to the small clue in their top-left corner; digits cannot repeat in a cage.
Learn: Anti-Knight
Learn: Killer
Normal
Corner
Centre
Colour
Pen
ABC
Digits
ABC
1
9
2
9
3
9
4
9
5
9
6
9
7
9
8
9
9
9
0
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↷
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✓
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