Erfitt Little Killer Sudoku
Vísbendingar utan fyrir rúðunni gefa skásummur — digits may repeat along the arrow. Combine diagonal enumeration with classic Sudoku logic. Free online.
Erfitt Little Killer Sudoku. Færri gefin, þéttari skálínur — búast við margþrepa ályktunum og víðtækri blýantsmerkingu vinna.
4
1
2
7
3
5
8
2
5
3
6
1
6
9
8
6
4
7
2
7
6
5
7
1
4
2
5
Diagonal ábendingar
↘
frá (1,1):
52
(9 reitir)
↘
frá (1,2):
31
(8 reitir)
↘
frá (1,3):
28
(7 reitir)
↘
frá (1,4):
30
(6 reitir)
↘
frá (1,5):
22
(5 reitir)
↘
frá (1,6):
22
(4 reitir)
↘
frá (1,7):
13
(3 reitir)
↘
frá (1,8):
11
(2 reitir)
↘
frá (2,1):
42
(8 reitir)
↘
frá (3,1):
46
(7 reitir)
↘
frá (4,1):
28
(6 reitir)
↘
frá (5,1):
23
(5 reitir)
↘
frá (6,1):
15
(4 reitir)
↘
frá (7,1):
18
(3 reitir)
↘
frá (8,1):
11
(2 reitir)
↙
frá (1,2):
10
(2 reitir)
↙
frá (1,3):
15
(3 reitir)
↙
frá (1,4):
14
(4 reitir)
↙
frá (1,5):
17
(5 reitir)
↙
frá (1,6):
31
(6 reitir)
↙
frá (1,7):
49
(7 reitir)
↙
frá (1,8):
36
(8 reitir)
↙
frá (1,9):
43
(9 reitir)
↙
frá (2,9):
45
(8 reitir)
↙
frá (3,9):
36
(7 reitir)
↙
frá (4,9):
21
(6 reitir)
↙
frá (5,9):
30
(5 reitir)
↙
frá (6,9):
23
(4 reitir)
↙
frá (7,9):
16
(3 reitir)
↙
frá (8,9):
10
(2 reitir)
Hvað er Little Killer Sudoku?
Erfiðleiki
★★★★☆
4/5
Takmörk tegund
Útvísar ábendingar
Dæmigerðar Gefnar Tölur
0–6 given digits
Meðal. Leysing (Erfitt)
55 mín
Leysitækni fyrir Erfitt stig
| Tækni | Lýsing | Stig |
|---|---|---|
| Diagonal Enumeration | For each clue, enumerate all combinations of N digits (allowing repeats, 1–9) that sum to the clue value. | Byrjandi |
| Repeating Digits Allowed | Unlike Killer cages, Little Killer diagonals can repeat digits as long as standard row/column/box uniqueness is preserved. | Byrjandi |
| Short Diagonal Logic | A 1-cell diagonal directly gives that cell's digit. A 2-cell diagonal with clue C has limited pairs — enumerate them immediately. | Miðlungs |
| Cross-Diagonal Intersection | When two diagonals share a cell, the shared cell must satisfy both sum constraints simultaneously. | Framhaldið |
| Row/Column Interaction | A diagonal cell belongs to a row, column, and box — combine Little Killer sum constraints with standard uniqueness rules. | Miðlungs |
Tilbúinn fyrir hinsta prófið? Prófaðu Sérfræðingur Little Killer Sudoku — erfiðustu þrautirnar á Spilaðu Sudoku.
Tækni til að meistra á Erfitt
- Hidden Pairs technique — Where two clue diagonals cross, the shared cell must satisfy both sums — the arithmetic squeezes neighbouring cells until pairs hide in the corners of crossed boxes.
- X-Wing tækni — Long diagonal sums near the minimum flood the diagonal with small digits, pushing 8 and 9 into few legal cells per row — hard Little Killer fish swim on the high digits.
Meðalleysingartími eftir erfiðleika
Auðvelt
14 mín
Miðlungs
28 mín
Erfitt
55 mín
Sérfræðingur
88 mín
Viltu fulla göngu í gegnum reglur, aðferðir, og lausnarskref?
Hvernig á að spila Little Killer Sudoku →
Tengd afbrigði
Killer Sudoku
The cage version of the same idea: sum clues with a no-repeat rule that makes the arithmetic tighter than on diagonals.
Sandwich Sudoku
Also driven entirely by numbers written outside the grid — sums between the 1 and 9 instead of along diagonals.
Skyscraper Sudoku
Another outside-clue variant, replacing diagonal sums with visibility counts read from the grid's edges.
Algengar Spurningar — Erfitt Little Killer Suðoku
Fleiri spurningar? Sjáðu fulla Little Killer Sudoku leiðbeiningar.