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
00:07.83
2. arcer
162
00:09.45
3. RaiT
77
00:15.25
4. Dareev
75
00:17.68
5. GGBond
27
00:18.93
6. thall
46
00:19.96
7. CauDravan
41
00:20.05
8. CLAVDIVS
66
00:22.98
9. Artuuras 00:25.01
10. Paracosmic
39
00:28.19
11. arod97
24
00:31.34
12. ZillyOtter 00:31.96
13. randomflyintaco
133
00:32.49
14. Kailo
71
00:32.53
15. daspore 00:37.54
16. kornelbut
31
00:41.13
17. OrxhidCrimes
1
00:45.37
18. Partimento
46
00:53.38
19. Ztevan
15
01:05.92
20. rubisco 01:14.20
This Week
1. GGBond
27
00:18.93
2. thall
46
00:19.96
3. CLAVDIVS
66
00:22.98
4. Artuuras 00:25.01
5. arod97
24
00:31.34
6. ZillyOtter 00:31.96
7. Kailo
71
00:32.53
8. daspore 00:37.54
9. kroller
10
01:24.81
10. zetaxiupsilon 01:35.55
11. Smurfix 01:44.58
12. Uthor 24d 20:31:23.64
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Today
1. Artuuras 00:32.55
2. CLAVDIVS
66
00:33.52
3. Uthor 24d 20:31:23.64
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5.--- empty -----:--
6.--- empty -----:--
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MO3
1. Icay
194
00:06.34
2. Make
276
00:06.41
3. numbrr
301
00:06.55
4. picarat
55
00:07.81
5. Vezzick
174
00:07.87
6. haramey
234
00:08.35
7. vowels
216
00:08.73
8.anonymous
225
00:09.17
9. PuzzleMaestro
81
00:09.74
10. TashiroMiraki
217
00:10.33
AO5
1. Icay
194
00:06.72
2. Make
276
00:06.84
3. numbrr
301
00:07.54
4. picarat
55
00:08.59
5. Vezzick
174
00:08.89
6. haramey
234
00:09.36
7. PuzzleMaestro
81
00:09.79
8. vowels
216
00:09.88
9.anonymous
225
00:11.52
10. arcer
162
00:12.04
AO12
1. Icay
194
00:07.78
1. Make
276
00:07.78
3. picarat
55
00:09.25
4. vowels
216
00:10.82
5. numbrr
301
00:11.23
6. Vezzick
174
00:11.47
7. haramey
234
00:12.44
8. PuzzleMaestro
81
00:13.40
9.anonymous
225
00:13.94
10. soy
154
00:14.23
Robots / programmatic solversinfo  
1.tlstyer
136
00:00.008
2.4s4f400:00.261
3.Paul Bismuth
1
00:02.926

* 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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2025-11-21 21:57:47

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