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
165
02:15.44
2. Reenolex
26
03:02.94
3. romromi 03:14.78
4. Paroni
71
03:26.57
5. Silkid
36
03:27.98
6. NBGalli 03:35.94
7. adminusff 04:17.99
8. kennethaw88
158
04:33.09
9. dreadsom
110
04:49.94
10. crema
273
04:57.21
11. drallyowl2
101
04:58.06
12. BillysName 04:59.44
13. SweatyBetty 05:28.83
14. nosleeplong
143
05:47.78
15. yorcho
88
06:38.24
16. profTomi 07:12.84
17. RForce
72
07:19.17
18. agrayperspectiv 07:42.51
19. br
69
07:56.78
20. qobi
239
08:02.58
This Week
1. Reenolex
26
03:02.94
2. liyan
165
03:13.63
3. adminusff 04:17.99
4. dreadsom
110
04:49.94
5. BillysName 04:59.44
6. RForce
72
07:19.17
7. agrayperspectiv 07:42.51
8. wendylll
56
09:05.63
9. Partimento
62
09:28.18
10. hq4hq
138
09:51.30
11. shoner
7
10:33.65
12. junior16u17 11:06.39
13. qobi
239
11:44.33
14. sandrovka
17
12:31.88
15. Rickieman86 12:32.83
16. issal 16:16.73
17. Pertyian 16:40.48
18. BlueBumblebee
25
17:01.57
19. AKoolKat 17:55.59
20. darjien 24:27.27
Today
1.--- empty -----:--
2.--- empty -----:--
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
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
165
02:52.98
2. PuzzleMaestro
95
03:16.10
3. daanbe
237
03:30.24
4. Silkid
36
03:46.23
5. numbrr
321
03:54.85
6. Reenolex
26
03:56.55
7. Make
285
04:16.76
8. MS Paint
108
04:27.61
9. 먼지
84
04:31.96
10. mslamhoa
235
04:39.63
AO5
1. liyan
165
03:31.22
2. daanbe
237
03:41.09
3. numbrr
321
03:51.81
4. PuzzleMaestro
95
04:01.67
5. Reenolex
26
04:05.75
6. Silkid
36
04:12.63
7. Make
285
04:29.17
8. 먼지
84
04:38.70
9. MS Paint
108
04:41.52
10. Oryn
181
04:55.60
AO12
1. numbrr
321
04:22.67
2. daanbe
237
04:23.96
3. Silkid
36
04:28.42
4. Reenolex
26
04:35.74
5. PuzzleMaestro
95
05:08.81
6. Make
285
05:09.81
7. MS Paint
108
05:16.44
8. mslamhoa
235
05:21.25
9. sealhy
199
05:27.98
10. Oryn
181
05:34.26
Robots / programmatic solversinfo  
1.siebi
16
00:00.184
2.Paul Bismuth
1
00:05.669
3.xiaruizebot00:18.220

* 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
www.puzzle-kurodoko.com
Remove Ads | Report This Ad