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. PuzzleMaestro
90
01:23.11
2. GGBond
28
02:40.19
3. JZE
87
02:44.47
4. geyik
206
02:50.01
5. rndm_cat
27
02:55.53
6. froz3n_
85
03:42.20
7. Xiongqi ZHANG
59
03:43.14
8. 20514
32
03:56.54
9. MadraMor
160
04:00.03
10. OCELOT
34
04:06.67
11. Kukko
164
04:08.79
12. Jbrunt
142
04:11.48
13. Shellylh
48
04:21.79
14. beatrixwashere
114
05:13.72
15. rateπR
18
05:15.25
16. Emzed
64
05:27.51
17. Dorice
264
05:34.79
18. Jazka 06:01.84
19. LindaRose
55
06:15.14
20. モグモグ
44
07:44.78
This Week
1. GGBond
28
02:40.19
2. rndm_cat
27
03:40.04
3. MadraMor
160
04:00.03
4. Kukko
164
04:27.61
5. Shellylh
48
06:57.02
6. Partimento
55
08:50.70
7. kroller
19
13:14.63
8. NaluXV1 14:28.48
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Today
1. rndm_cat
27
03:40.04
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MO3
1. Make
279
01:03.61
2. numbrr
309
01:22.30
3. Icay
195
01:25.64
4. PuzzleMaestro
90
01:28.43
5. vowels
216
01:35.88
6. Brian Murphy
114
01:40.59
7. 강일출
177
01:52.14
8. soy
158
01:55.44
9. 2015YINJ02
178
01:56.60
10. picarat
55
01:59.72
AO5
1. Make
279
01:05.24
2. Icay
195
01:27.87
3. numbrr
309
01:37.00
4. vowels
216
01:40.23
5. PuzzleMaestro
90
01:40.87
6. Brian Murphy
114
01:45.99
7. soy
158
01:54.76
8. 2015YINJ02
178
01:59.42
9. Vezzick
181
02:02.51
10. picarat
55
02:06.95
AO12
1. Make
279
01:17.79
2. PuzzleMaestro
90
01:44.37
3. Icay
195
01:45.79
4. vowels
216
01:55.63
5. numbrr
309
01:59.93
6. Brian Murphy
114
02:10.27
7. 2015YINJ02
178
02:10.43
8. soy
158
02:11.39
9. scott851028
88
02:15.95
10. GoldChoco36
152
02:26.51
Robots / programmatic solversinfo  
1.tlstyer
142
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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2026-03-13 09:36:24

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