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

New Puzzle
This Month
1. GGBond
29
02:25.52
2. geyik
207
02:27.79
3. rndm_cat
29
02:50.12
4. OCELOT
36
02:50.18
5. froz3n_
85
03:42.20
6. MadraMor
160
03:45.66
7. 20514
32
03:56.54
8. Jbrunt
142
04:08.09
9. Kukko
165
04:08.79
10. rateπR
21
04:11.89
11. ZillyOtter 04:17.23
12. Dorice
265
05:34.79
13. Shellylh
49
05:46.25
14. Jazka 06:01.84
15. NaluXV1 06:32.01
16. daisyisaflower 06:54.49
17. Partimento
57
06:58.25
18. kroller
20
07:08.37
19. LindaRose
55
07:28.45
20. Itstotallykyle
50
07:50.93
This Week
1. GGBond
29
02:25.52
2. MadraMor
160
03:45.66
3. rateπR
21
04:11.89
4. froz3n_
85
05:09.42
5. LindaRose
55
07:28.45
6. yosiaki
106
07:51.29
7. MimiK 09:38.67
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Today
1. yosiaki
106
08:03.31
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MO3
1. Make
279
01:03.61
2. numbrr
311
01:22.30
3. Icay
195
01:25.64
4. PuzzleMaestro
90
01:28.43
5. vowels
216
01:35.88
6. Brian Murphy
115
01:40.59
7. 강일출
178
01:52.14
8. soy
159
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
311
01:37.00
4. vowels
216
01:40.23
5. PuzzleMaestro
90
01:40.87
6. Brian Murphy
115
01:45.99
7. soy
159
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
311
01:59.93
6. Brian Murphy
115
02:10.27
7. 2015YINJ02
178
02:10.43
8. soy
159
02:11.39
9. scott851028
88
02:15.95
10. GoldChoco36
153
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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