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. tannisjin
67
02:50.48
2. picarat
51
02:54.99
3. wyhrg
38
02:55.03
4. jb082005
44
03:25.74
5. Siloam 03:59.18
6. stoopid 04:15.75
7. erichiro 04:25.73
8. Yahagi Shirayuki
18
05:11.95
9. izrabelle
37
05:31.62
10. randomflyintaco
106
05:32.46
11. Meowy
22
05:57.05
12. Dereham
50
06:12.86
13. crema
163
06:25.92
14. Cris Tempo
67
06:46.97
15. IntotheLight
48
07:24.00
16. DdBbon 07:24.48
17. NanogramFreak 07:28.52
18. nbapip 08:59.02
19. choroba 09:31.45
20. bedlion 09:37.84
This Week
1. tannisjin
67
02:50.48
2. wyhrg
38
02:55.03
3. Yahagi Shirayuki
18
05:11.95
4. randomflyintaco
106
05:36.97
5. NanogramFreak 07:28.52
6. DenoCFH
9
17:05.05
7. Joris Brouwer
38
45:51.39
8. sslmcm 1:23:35.95
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MO3
1. Make
272
01:09.48
2. Icay
187
01:45.01
3. numbrr
295
02:10.03
4. vortressovortex#0
40
02:13.49
5. scott851028
86
02:38.26
6. summernight
209
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
272
01:14.46
2. Icay
187
01:51.68
3. numbrr
295
02:03.47
4. vortressovortex#0
40
02:17.33
5. scott851028
86
02:50.75
6. 孤单心事
146
02:59.33
7. GoldChoco36
134
03:00.56
8. summernight
209
03:07.70
9. jb082005
44
03:18.47
10. haramey
230
03:20.39
AO12
1. Make
272
01:25.29
2. Icay
187
02:11.57
3. vortressovortex#0
40
02:48.99
4. numbrr
295
02:53.09
5. scott851028
86
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
215
03:53.98
10. jb082005
44
03:57.88
Robots / programmatic solversinfo  
1.tlstyer
118
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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2025-06-22 06:31:23

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