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. kennethaw88
158
00:27.68
2. SilverHawk
216
00:31.12
3. Reenolex
19
00:40.06
4. Nieznany 00:41.44
5. Rickieman86 00:45.28
6. nerdvert
102
00:46.73
7. missPear
92
00:47.92
8. qobi
239
00:48.09
9. Dorice
271
00:49.19
10. nosleeplong
143
00:52.12
11. gheeler 00:56.03
12. shei
79
00:57.43
13. Partimento
62
00:57.90
14. Jazka 00:58.02
15. swpomeroy
198
01:00.52
16. sandrovka
14
01:04.86
17. Candyman 01:06.50
18. Rocketdog
37
01:07.59
19. daghan
34
01:07.68
20. cryptOakmont 01:07.94
This Week
1. kennethaw88
158
00:36.77
2. Rickieman86 00:45.28
3. missPear
92
00:47.92
4. Reenolex
19
00:55.01
5. qobi
239
00:56.27
6. Nieznany 00:57.27
7. nerdvert
102
00:59.63
8. Rocketdog
37
01:07.59
9. daghan
34
01:07.68
10. Tomas7407
1
01:08.70
11. JustGeee 01:09.04
12. shoner
7
01:13.52
13. sandrovka
14
01:19.90
14. Dorice
271
01:26.24
15. xilli 01:46.92
16. Jazka 01:56.75
17. laries
43
02:14.84
18. BlueOcarina
90
02:20.31
19. Odenzon
38
02:33.82
20. Einsteinus
122
02:33.88
Today
1. Tomas7407
1
01:08.70
2. shoner
7
01:13.52
3. sandrovka
14
01:38.22
4. BlueOcarina
90
03:20.30
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. PuzzleMaestro
94
00:24.78
2. daanbe
237
00:26.57
3. Fastfaxer
131
00:28.90
4. numbrr
321
00:30.33
5. Make
285
00:32.40
6. Meerkat
214
00:37.39
7.anonymous
39
00:41.66
8. kennethaw88
158
00:41.81
9. SilverHawk
216
00:41.97
10. Truth-or-Peace
137
00:42.44
AO5
1. PuzzleMaestro
94
00:25.67
2. daanbe
237
00:30.55
3. numbrr
321
00:31.29
4. Make
285
00:34.73
5. Fastfaxer
131
00:35.99
6. Meerkat
214
00:44.16
7. SilverHawk
216
00:44.63
8. kennethaw88
158
00:46.00
9. qqwref
266
00:48.31
10. hkjsf
161
00:49.40
AO12
1. PuzzleMaestro
94
00:31.59
2. numbrr
321
00:35.75
3. daanbe
237
00:37.03
4. Make
285
00:45.20
5. Fastfaxer
131
00:50.57
6. Meerkat
214
00:55.16
7. SilverHawk
216
00:57.24
8. Oryn
180
00:57.76
9. kennethaw88
158
00:58.24
10. qqwref
266
00:59.69
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:01.604
2.gazil900:53.440
3.qzdlogic03:26.545

* 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