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
54
00:03.44
2. Siloam 00:05.03
3. JZE
85
00:05.15
4. Aorta
5
00:06.39
5. Flare
3
00:06.79
6. EdenGameMaster
19
00:07.73
7. fzyakioi
10
00:07.95
8. Mikki
5
00:08.51
9. 222champ 00:08.73
10. randomflyintaco
115
00:08.86
11. 1337N008 00:09.27
12. FcraigNI
42
00:09.53
13. Heqnry 00:09.80
14. MsCoralRose
52
00:09.85
15. xc0xupx
38
00:11.22
16. sgychen6
100
00:11.32
17. howin
11
00:11.35
18. pouldu
110
00:11.49
19. 20514
31
00:11.71
20. ChiefOsceola 00:12.03
This Week
1. picarat
54
00:04.44
2. Flare
3
00:06.79
3. EdenGameMaster
19
00:07.73
4. Heqnry 00:09.80
5. howin
11
00:11.35
6. ChiefOsceola 00:12.03
7. marbleeeee 00:12.26
8. Yukiznc
3
00:14.07
9. randomflyintaco
115
00:14.23
10. RkRs21
11
00:14.50
11. CLAVDIVS
59
00:14.92
12. Xiongqi ZHANG
11
00:16.57
13. JesusIsLord
66
00:23.83
14. nyahgust
5
00:28.36
15. AMA17Cordoba 00:34.39
16. Icepeacful 01:23.72
17. xuan
19
03:13.92
18. 20hours 20:52:01.30
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Today
1. EdenGameMaster
19
00:07.73
2.--- empty -----:--
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
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11.--- empty -----:--
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MO3
1. Icay
189
00:02.92
2. vowels
216
00:03.15
3. numbrr
298
00:03.20
4. Make
273
00:03.31
5. nabi
92
00:03.63
6. Vezzick
163
00:03.84
7. IHNN1
12
00:03.91
8. haramey
231
00:04.07
9. picarat
54
00:04.12
10. Douglas Shamlin Jr.
702
00:04.28
AO5
1. Icay
189
00:03.03
2. vowels
216
00:03.32
3. Make
273
00:03.36
4. numbrr
298
00:03.62
5. nabi
92
00:03.71
6. Douglas Shamlin Jr.
702
00:03.89
7. Vezzick
163
00:04.14
8. IHNN1
12
00:04.17
9. haramey
231
00:04.20
10. picarat
54
00:04.48
AO12
1. Icay
189
00:03.56
2. Make
273
00:03.79
3. vowels
216
00:03.88
4. numbrr
298
00:04.58
5. nabi
92
00:04.98
6. Vezzick
163
00:05.04
7. haramey
231
00:05.12
8. picarat
54
00:05.15
9. Douglas Shamlin Jr.
702
00:05.21
10. IHNN1
12
00:05.83
Robots / programmatic solversinfo  
1.tlstyer
126
00:00.007
2.4s4f400:00.224
3.Paul Bismuth
1
00:01.556

* 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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2025-08-20 02:37:25

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