LITS


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LITS is a logic puzzle with simple rules and challenging solutions.

The rules of LITS are simple:
You have to place one tetromino* in each region in such a way that:
- 2 tetrominoes of matching types cannot touch each other horizontally or vertically. Rotations and reflections count as matching.
- The shaded cells should form a single connected area.
- 2x2 shaded areas are not allowed.

* Tetromino is a shape made of 4 connected cells. There are 5 types of tetrominoes, which are usually named L, I, T, S and O, based on their shape. The O tetromino is not used in this puzzle because it is a 2x2 shape, which is not allowed.

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LITS


6x6 Normal LITS | 6x6 Hard LITS | 8x8 Normal LITS | 8x8 Hard LITS | 10x10 Normal LITS | 10x10 Hard LITS | 15x15 Normal LITS | 15x15 Hard LITS | 20x20 Normal LITS | 20x20 Hard LITS

This Month
1. picarat
52
02:46.15
2. tannisjin
67
02:50.48
3. wyhrg
41
02:55.03
4. NghiVo
2
04:58.12
5. randomflyintaco
108
05:00.15
6. Yahagi Shirayuki
22
05:07.11
7. Zevyx
22
05:14.99
8. Meowy
22
05:57.05
9. crema
168
06:25.92
10. swpomeroy
171
06:26.37
11. Cris Tempo
67
06:46.97
12. super2276 07:18.08
13. NanogramFreak 07:28.52
14. melomane21 08:08.36
15. stevethesquid
64
08:08.89
16. DdBbon 08:27.41
17. Dorice
242
08:36.75
18. nbapip 08:37.43
19. choroba 08:54.51
20. Dereham
50
09:30.54
This Week
1. NghiVo
2
04:58.12
2. randomflyintaco
108
05:30.76
3. Zevyx
22
05:47.98
4. stevethesquid
64
08:08.89
5. choroba 08:58.91
6. DenoCFH
9
10:08.66
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Today
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MO3
1. Make
273
01:09.48
2. Icay
189
01:45.01
3. numbrr
297
02:10.03
4. vortressovortex#0
40
02:13.49
5. scott851028
87
02:38.26
6. summernight
211
02:51.62
7. GoldChoco36
134
02:53.85
8. 孤单心事
146
02:57.99
9. jb082005
44
03:07.48
10. haramey
230
03:12.52
AO5
1. Make
273
01:14.46
2. Icay
189
01:51.68
3. numbrr
297
02:03.47
4. vortressovortex#0
40
02:17.33
5. scott851028
87
02:50.75
6. 孤单心事
146
02:59.33
7. GoldChoco36
134
03:00.56
8. summernight
211
03:07.70
9. jb082005
44
03:18.47
10. haramey
230
03:20.39
AO12
1. Make
273
01:25.29
2. Icay
189
02:11.57
3. vortressovortex#0
40
02:48.99
4. numbrr
297
02:53.09
5. scott851028
87
03:12.41
6. GoldChoco36
134
03:30.80
7. haramey
230
03:49.07
8. -完颜彩虹兔-
29
03:51.49
9. vowels
216
03:53.98
10. jb082005
44
03:57.88
Robots / programmatic solversinfo  
1.tlstyer
120
00:00.020
2.4s4f400:00.535
3.Paul Bismuth
1
00:13.581

* 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.
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2025-07-11 11:54:26

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