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. splinkk
12
00:03.31
2. shoner
7
00:03.62
3. Reenolex
40
00:03.87
4. Efret
15
00:04.05
5. Rickieman86 00:04.08
6. RelaxedCockatoo
67
00:04.14
7. missPear
93
00:04.48
8. russellan
71
00:04.73
9. Hwellyn
75
00:04.89
10. takaz 00:05.03
11. MrNyooooom
30
00:05.15
12. qobi
240
00:05.41
13. wosile
56
00:05.43
14. Dichterling
7
00:05.57
15. Jazka 00:05.67
16. alexlex
89
00:06.20
17. CamPuzzle
40
00:06.41
18. NickB15 00:06.84
19. Smylic
149
00:07.04
20. darjien 00:07.72
This Week
1. Efret
15
00:04.05
2. RelaxedCockatoo
67
00:04.14
3. Hwellyn
75
00:04.89
4. takaz 00:05.03
5. qobi
240
00:05.41
6. wosile
56
00:05.43
7. Dichterling
7
00:07.60
8. PieMK
8
00:08.89
9. BlueOcarina
91
00:09.52
10. Opie1234 00:13.42
11. Zerozeddy1
85
00:14.44
12. profTomi 00:16.56
13. jianglele
1
00:22.30
14. Martin112358
10
00:23.75
15. llmt9
102
00:28.90
16. Srihari 00:29.70
17. absolbot#6708
19
00:33.92
18. sandrovka
26
00:34.20
19. Marialiss
18
03:54.10
20. Uthor 24d 20:31:23.64
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. jaybrainer
276
00:02.32
2. hhhhhh2
156
00:02.93
3. numbrr
322
00:03.27
4. daanbe
239
00:03.40
5. PuzzleMaestro
100
00:03.57
6. boru
132
00:03.76
7. hkjsf
161
00:03.79
8. splinkk
12
00:04.05
9. Meerkat
214
00:04.22
10. selahsea
130
00:04.26
AO5
1. jaybrainer
276
00:02.93
2. hhhhhh2
156
00:03.56
3. daanbe
239
00:03.62
4. PuzzleMaestro
100
00:03.76
5. numbrr
322
00:03.97
6. splinkk
12
00:03.99
7. boru
132
00:04.14
8. hkjsf
161
00:04.45
9. Make
287
00:04.46
10. 2015YINJ02
187
00:04.53
AO12
1. jaybrainer
276
00:03.71
2. daanbe
239
00:03.93
3. hhhhhh2
156
00:04.51
4. numbrr
322
00:04.66
5. PuzzleMaestro
100
00:04.90
6. Meerkat
214
00:05.36
7. hkjsf
161
00:05.60
8. 2015YINJ02
187
00:05.70
9. boru
132
00:05.71
10. Make
287
00:06.11
Robots / programmatic solversinfo  
1.siebi
1
00:00.152
2.Paul Bismuth
1
00:00.774
3.shumiao5
1
00:04.861

* 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