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

New Puzzle
This Month
1. JonOssoff 02:48.97
2. erichiro 03:32.40
3. Gorgonseye 04:31.76
4. DdBbon 04:59.88
5. Axin0627 05:08.31
6. ComPhyPark
46
05:19.15
7. DanielJ
33
05:27.82
8. mack3mu 05:29.36
9. skwerl
170
05:33.25
10. Hashibrown 05:35.35
11. OSHMKUFA
31
05:59.33
12. Lin Wanxin
80
06:26.99
13. NanogramFreak 06:38.33
14. hyper2234 06:59.90
15. Alphanum3ric
8
07:12.16
16. super2276 07:22.88
17. flinkerflame
32
07:35.96
18. Dimples
107
07:42.50
19. OhHeyGuysItsMax
87
10:18.30
20. Lylia s
15
10:21.75
This Week
1. JonOssoff 02:48.97
2. Gorgonseye 04:31.76
3. ComPhyPark
46
05:19.15
4. OSHMKUFA
31
05:59.33
5. Axin0627 06:29.45
6. Lylia s
15
12:28.83
7. DuckDoni 13:37.97
8. lang0281 27:04.10
9. Skemmer 35:20.99
10. cwhwillie
104
36:23.34
11. Goomy
152
24d 20:31:23.64
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Today
1. ComPhyPark
46
05:19.15
2. DuckDoni 13:37.97
3.--- empty -----:--
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5.--- empty -----:--
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MO3
1. Make
288
01:09.48
2. Icay
200
01:45.01
3. numbrr
324
02:10.03
4. vortressovortex#0
47
02:13.49
5. GoldChoco36
171
02:25.75
6. 2015YINJ02
187
02:35.43
7. scott851028
88
02:38.26
8. summernight
239
02:51.62
9. 孤单心事
147
02:57.99
10. soy
163
03:06.53
AO5
1. Make
288
01:14.46
2. Icay
200
01:51.68
3. numbrr
324
02:03.47
4. vortressovortex#0
47
02:17.33
5. GoldChoco36
171
02:44.47
6. 2015YINJ02
187
02:50.52
7. scott851028
88
02:50.75
8. 孤单心事
147
02:59.33
9. summernight
239
03:07.70
10. jb082005
47
03:18.47
AO12
1. Make
288
01:25.29
2. Icay
200
02:11.57
3. vortressovortex#0
47
02:48.99
4. numbrr
324
02:53.09
5. scott851028
88
03:12.41
6. 2015YINJ02
187
03:19.64
7. GoldChoco36
171
03:30.80
8. haramey
240
03:49.07
9. -完颜彩虹兔-
29
03:51.49
10. vowels
216
03:53.98
Robots / programmatic solversinfo  
1.tlstyer
154
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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