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
00:51.17
2. froz3n_
76
02:02.07
3. RaiT
76
02:09.72
4. boru
115
02:10.98
5. Minimarshoo 02:28.95
6. Oryn
160
02:37.42
7. Rocketdog
31
02:39.76
8. Dorice
253
02:41.57
9. Xiongqi ZHANG
39
02:52.28
10. randomflyintaco
133
02:52.95
11. trLBumm
20
02:57.26
12. Paracosmic
39
03:02.05
13. cratic
24
03:47.89
14. Shellylh
45
04:02.89
15. nbapip 04:05.38
16. xilli 04:31.68
17. ZillyOtter 04:56.22
18. SeaSnailsShell
64
05:17.55
19. arod97
20
07:11.09
20. wyq97 07:14.50
This Week
1. froz3n_
76
02:02.07
2. Minimarshoo 02:28.95
3. Oryn
160
02:37.42
4. Dorice
253
02:41.57
5. Xiongqi ZHANG
39
02:52.28
6. nbapip 04:18.26
7. xilli 06:09.11
8. arod97
20
07:11.09
9. Gage Williams
27
09:49.94
10. trLBumm
20
13:16.66
11. drbop
46
3:51:48.78
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Today
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MO3
1. Make
276
00:34.94
2. Icay
194
00:47.03
3. PuzzleMaestro
81
00:59.82
4. numbrr
301
01:00.64
5. LeMonSoda
54
01:11.54
6. scott851028
88
01:15.80
7. GoldChoco36
138
01:17.09
8. vowels
216
01:17.38
9. haramey
234
01:18.94
10. soy
154
01:20.16
AO5
1. Make
276
00:36.80
2. Icay
194
00:48.29
3. numbrr
301
01:02.12
4. GoldChoco36
138
01:09.78
5. soy
154
01:15.43
6. vowels
216
01:20.50
7. LeMonSoda
54
01:21.79
8. scott851028
88
01:23.00
9. haramey
234
01:24.35
10. PlaPlaa
147
01:34.25
AO12
1. Make
276
00:45.50
2. Icay
194
00:55.96
3. numbrr
301
01:17.33
4. scott851028
88
01:29.65
5. LeMonSoda
54
01:32.18
6. vowels
216
01:32.50
7. GoldChoco36
138
01:37.18
8. soy
154
01:37.87
9. haramey
234
01:42.39
10. PlaPlaa
147
01:57.75
Robots / programmatic solversinfo  
1.tlstyer
135
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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2025-11-18 16:19:59

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