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

Share

Kurodoko


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

This Month
1. gazil 00:22.85
2. Meerkat
211
00:24.92
3. qobi
234
00:37.74
4. kennethaw88
154
00:39.29
5. daanbe
222
00:41.57
6. Alachas
21
00:44.26
7. Fastfaxer
130
00:46.37
8. nerdvert
98
00:48.29
9. nosenugget
142
00:48.39
10. Dorice
263
00:50.96
11. missPear
90
00:51.88
12. Lua
145
00:56.06
13. Savia
74
00:56.15
14. PArzi 00:59.02
15. NormalSurface#7622
53
00:59.22
16. Aelenian
128
01:02.62
17. Nieznany 01:03.80
18. Liliumauratum
18
01:05.19
19. juhala 01:05.51
20. *** *****
146
01:06.67
This Week
1. gazil 00:24.45
2. kennethaw88
154
00:39.61
3. nerdvert
98
00:48.29
4. PArzi 01:00.45
4. Alachas
21
01:00.45
6. Wuni14 01:10.81
7. qobi
234
01:12.60
8. Nieznany 01:13.83
9. missPear
90
01:19.90
10. mattlancs
148
01:19.96
11. Dorice
263
01:23.02
12. Fastfaxer
130
01:37.48
13. xilli 01:41.53
14. MishaVargas
1
01:49.80
15. yosiaki
103
01:50.13
16. Geppetto 02:30.53
17. mkmk
88
02:59.05
18. Efran
50
03:14.07
19. Hiro Lynx
42
03:29.59
20. windex42
35
05:21.26
Today
1. qobi
234
01:37.89
2. IRizz
8
16:05.42
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. PuzzleMaestro
89
00:24.78
2. Fastfaxer
130
00:28.90
3. daanbe
222
00:29.27
4. numbrr
308
00:30.33
5. Make
278
00:32.40
6. Meerkat
211
00:37.39
7. kennethaw88
154
00:41.81
8. Truth-or-Peace
132
00:42.44
9. hkjsf
152
00:43.36
10. Oryn
168
00:43.66
AO5
1. PuzzleMaestro
89
00:25.67
2. daanbe
222
00:30.55
3. numbrr
308
00:31.29
4. Make
278
00:34.73
5. Fastfaxer
130
00:35.99
6. Meerkat
211
00:44.16
7. kennethaw88
154
00:46.00
8. qqwref
266
00:48.31
9. hkjsf
152
00:49.40
10. Ailurus
183
00:50.41
AO12
1. PuzzleMaestro
89
00:31.59
2. numbrr
308
00:35.75
3. daanbe
222
00:37.03
4. Make
278
00:45.20
5. Fastfaxer
130
00:50.57
6. Meerkat
211
00:55.16
7. qqwref
266
00:59.69
8. hkjsf
152
00:59.79
8. Rhododendron
149
00:59.79
10. kennethaw88
154
00:59.92
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


Find your position in

Enter screen name:


More Logic Puzzles:  hideshow

2026-03-01 04:06:42

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