Kurodoko


Translate this site.

Kurodoko also known as Kuromasu is a logic puzzle with simple rules and challenging solutions.

The rules are simple.
Shade some cells black guided by number clues.

- Each number clue shows how many cells are "visible" from its place.
- "Visible" are all white cells up, down, left and right of the clue, terminated by a black cell or the grid edge. The cell with the number clue is also counted as visible.
- Other clue cells are considered transparent, so visibility continues through them.
- You can't shade clue cells black.
- All white cells must be connected orthogonally in a single group.
- Black cells can't touch orthogonally (diagonal touching is allowed).

Left click on a cell to make it black. Right click to mark with a dot. Click and drag to mark more than one cell.

Video Tutorial
Hide the rules
Kurodoko


5x5 Kurodoko | 7x7 Kurodoko | 10x10 Kurodoko | 15x15 Kurodoko | 20x20 Kurodoko

New Puzzle
This Month
1. liyan
164
02:15.44
2. Silkid
35
02:37.64
3. romromi 03:14.78
4. Paroni
71
03:26.57
5. NBGalli 03:35.94
6. Reenolex
19
04:10.73
7. kennethaw88
158
04:33.09
8. SweatyBetty 04:54.92
9. kikikik
16
04:56.76
10. crema
273
04:57.21
11. drallyowl2
101
04:58.06
12. qobi
239
04:59.97
13. BillysName 05:37.89
14. dreadsom
110
05:54.90
15. yorcho
87
06:12.20
16. swpomeroy
198
06:23.29
17. profTomi 07:12.84
18. Kamendae 07:37.34
19. br
69
07:56.78
20. not2sleepy
80
07:57.24
This Week
1. liyan
164
02:15.44
2. Paroni
71
03:26.57
3. Reenolex
19
04:13.13
4. kennethaw88
158
04:33.09
5. crema
273
04:57.21
6. SweatyBetty 05:43.83
7. dreadsom
110
06:04.16
8. Partimento
62
08:37.75
9. profTomi 08:43.80
10. qobi
239
08:50.16
11. wendylll
56
10:03.36
12. Jazka 12:29.92
13. sandrovka
14
12:53.22
14. issal 13:55.56
15. Rickieman86 13:57.83
16. BlueBumblebee
24
14:11.58
17. shoner
7
19:01.26
18. josim 23:23.06
19. Odenzon
38
36:04.79
20. Skemmer 5:24:13.44
Today
1. Reenolex
19
04:37.12
2. Paroni
71
05:02.31
3. dreadsom
110
06:04.16
4. profTomi 09:29.92
5. Partimento
62
12:42.31
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. liyan
164
02:52.98
2. PuzzleMaestro
94
03:16.10
3. daanbe
237
03:30.24
4. Silkid
35
03:46.23
5. numbrr
321
03:54.85
6. Make
285
04:16.76
7. MS Paint
107
04:27.61
8. 먼지
84
04:31.96
9. mslamhoa
234
04:39.63
10. Oryn
180
04:51.23
AO5
1. liyan
164
03:32.67
2. daanbe
237
03:41.09
3. numbrr
321
03:51.81
4. PuzzleMaestro
94
04:01.67
5. Silkid
35
04:12.63
6. Make
285
04:29.17
7. 먼지
84
04:38.70
8. MS Paint
107
04:41.52
9. Oryn
180
04:55.60
10. mslamhoa
234
04:59.01
AO12
1. numbrr
321
04:22.67
2. daanbe
237
04:23.96
3. Silkid
35
04:28.42
4. PuzzleMaestro
94
05:08.81
5. Make
285
05:09.81
6. MS Paint
107
05:16.44
7. mslamhoa
234
05:21.25
8. sealhy
199
05:27.98
9. Oryn
180
05:34.26
10. Meerkat
214
05:57.62
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:05.669
2.xiaruizebot00:18.220
3.adgjm13:42.557

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
You need to be logged in to track your averages

New Puzzle

Find your position in

Find it
uat.puzzle-kurodoko.com
Remove Ads | Report This Ad