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
55
00:53.53
2. Siloam 01:39.14
3. randomflyintaco
120
01:55.16
4. stz
30
01:55.30
5. PArzi 02:02.87
6. Hashibrown 02:06.50
7. Dorice
247
02:14.05
8. trj1111
32
02:14.89
9. Shellylh
41
02:45.45
10. fishysua
147
03:15.54
11. Paracosmic
34
03:19.64
12. Rocketdog
27
03:33.16
13. nbapip 04:12.43
14. AnonyMinor
58
04:31.68
15. jjohn 04:40.37
16. Canon
19
04:55.22
17. DdBbon 05:14.83
18. むーくん
15
08:32.00
19. trLBumm
12
19:38.75
20.--- empty -----:--
This Week
1. picarat
55
00:53.53
2. randomflyintaco
120
01:55.16
3. Shellylh
41
02:45.45
4. Paracosmic
34
03:19.64
5. Canon
19
04:55.22
6. Dorice
247
06:42.07
7. むーくん
15
08:32.00
8. trLBumm
12
19:38.75
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Canon
19
04:55.22
2. Dorice
247
06:42.07
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. Make
274
00:34.94
2. Icay
191
00:47.03
3. PuzzleMaestro
79
00:59.82
4. numbrr
300
01:00.64
5. LeMonSoda
54
01:11.54
6. scott851028
88
01:15.80
7. GoldChoco36
136
01:17.09
8. vowels
216
01:17.38
9. haramey
231
01:18.94
10. soy
149
01:20.16
AO5
1. Make
274
00:36.80
2. Icay
191
00:48.29
3. numbrr
300
01:02.12
4. GoldChoco36
136
01:09.78
5. soy
149
01:15.43
6. vowels
216
01:20.50
7. LeMonSoda
54
01:21.79
8. scott851028
88
01:23.00
9. haramey
231
01:24.35
10. PlaPlaa
141
01:34.25
AO12
1. Make
274
00:45.50
2. Icay
191
00:55.96
3. numbrr
300
01:17.33
4. scott851028
88
01:29.65
5. LeMonSoda
54
01:32.18
6. vowels
216
01:32.50
7. GoldChoco36
136
01:37.18
8. soy
149
01:37.87
9. haramey
231
01:42.39
10. PlaPlaa
141
01:57.75
Robots / programmatic solversinfo  
1.tlstyer
127
00:00.009
2.4s4f400:00.329
3.Paul Bismuth
1
00:09.133

* 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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2025-09-15 21:14:39

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