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
01:19.02
2. kennethaw88
148
02:25.47
3. swpomeroy
176
02:55.36
4. randomflyintaco
115
03:43.23
5. josim 05:23.20
6. Wuni14 05:40.93
7. ぺぺろんちい...
52
06:08.74
8. TungTung
10
07:12.73
9. AnonyMinor
55
07:22.66
10. Shellylh
40
07:27.34
11. nbapip 07:52.92
12. LindaRose
53
09:20.73
13. BeateZ 09:46.42
14. LtyQWQ 16:49.39
15. br
61
21:05.52
16. Xiongqi ZHANG
11
22:18.37
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This Week
1. picarat
54
01:26.51
2. randomflyintaco
115
03:54.15
3. TungTung
10
07:12.73
4. LindaRose
53
09:20.73
5. BeateZ 09:46.42
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7.--- empty -----:--
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Today
1. randomflyintaco
115
03:54.15
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3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
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MO3
1. Make
273
01:03.61
2. numbrr
298
01:22.30
3. Icay
189
01:25.64
4. vowels
216
01:35.88
5. Brian Murphy
109
01:40.59
6. soy
149
01:55.44
7. picarat
54
01:59.72
8. GoldChoco36
136
02:06.22
9. scott851028
87
02:07.39
10. 孤单心事
146
02:14.35
AO5
1. Make
273
01:05.24
2. Icay
189
01:27.87
3. numbrr
298
01:37.00
4. vowels
216
01:40.23
5. Brian Murphy
109
01:45.99
6. soy
149
01:54.76
7. picarat
54
02:06.95
8. GoldChoco36
136
02:07.42
9. scott851028
87
02:09.68
10. 孤单心事
146
02:24.45
AO12
1. Make
273
01:17.79
2. Icay
189
01:45.79
3. vowels
216
01:55.63
4. numbrr
298
01:59.93
5. Brian Murphy
109
02:10.27
6. soy
149
02:11.39
7. scott851028
87
02:15.95
8. GoldChoco36
136
02:26.51
9. haramey
231
02:28.45
10. 孤单心事
146
02:30.73
Robots / programmatic solversinfo  
1.tlstyer
126
00:00.012
2.4s4f400:00.348
3.Paul Bismuth
1
00:16.375

* 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 05:16:45

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