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Brain Teasers difficult

Only difficult puzzles were selected that received good ratings from players and a small average solution time
Puzzles Suitable for smartphones

Polyomino

Times solved 7 Likes 6
14:27
x3
2023-09-15 15:01
4 88%

Sokoban

Times solved 9 Likes 8
17:06
x1
2023-08-27 18:08
4 88%
Ore 100%

Windoku

Times solved 17 Likes 15
18:35
x4
2023-08-24 11:24
4 90%
Fuel 100%

Sudoku X

Times solved 19 Likes 15 Dislikes 1
14:37
x4
2023-08-09 10:07
4 89%

Ball Sort

Times solved 64 Likes 46
19:53
x5
2023-08-03 11:57
4 84%

Sokoban

Times solved 8 Likes 8
13:20
x1
2023-07-26 12:15
4 95%
Coal 100%

Sudoku X

Times solved 14 Likes 12
15:21
x5
2023-07-21 18:41
4 84%

Windoku

Times solved 12 Likes 11
19:28
x4
2023-07-14 11:24
4 86%

Sudoku X

Times solved 7 Likes 7
18:10
x5
2023-07-14 00:46
4 97%

Sudoku X

Times solved 12 Likes 11
16:13
x4
2023-07-13 12:46
4 84%
Oil 100%

Mahjong pyramid

Times solved 8 Likes 6
17:32
x3
2023-06-17 10:28
4 88%

Sudoku X

Times solved 6 Likes 6
19:14
x5
2023-06-09 09:03
4 86%

Sokoban

Times solved 10 Likes 9
12:54
x2
2023-05-25 21:04
4 91%

Sudoku X

Times solved 13 Likes 11
19:03
x5
2023-05-16 21:04
4 93%
Kirk 100%

Windoku

Times solved 11 Likes 8
12:25
x4
2023-05-01 12:00
4 84%

Ball Sort

Times solved 87 Likes 48 Dislikes 1
19:47
x6
2023-04-25 22:10
4 86%

Sudoku X

Times solved 12 Likes 10
17:48
x5
2023-04-25 21:03
4 100%

Shifters without numbers

Times solved 16 Likes 15
13:03
x4
2023-04-22 20:48
4 84%
Iron 100%

Windoku

Times solved 12 Likes 11
18:24
x4
2023-02-16 15:41
4 88%
Oil 100%

Sudoku X

Times solved 20 Likes 18 Dislikes 1
15:34
x4
2023-02-11 10:59
4 86%
Oil 100%

Sokoban

Times solved 8 Likes 8
15:30
x1
2023-02-04 21:01
4 88%
Ore 100%

Sudoku X

Times solved 18 Likes 16 Dislikes 1
16:30
x5
2023-01-24 03:41
4 87%
Ore 100%

Shifters without numbers

Times solved 11 Likes 8
17:00
x4
2023-01-14 22:35
4 100%

Skyscrapers

Times solved 9 Likes 9
19:27
x2
2023-01-10 18:37
4 86%

Sokoban

Times solved 11 Likes 10 Dislikes 1
19:56
x3
2023-01-08 13:41
4 85%
Oil 100%

Sudoku X

Times solved 10 Likes 10
18:15
x5
2023-01-07 21:05
4 89%
Ore 100%

Sudoku X

Times solved 15 Likes 14
19:02
x4
2023-01-04 21:05
4 90%

Sudoku X

Times solved 12 Likes 11 Dislikes 1
15:59
x4
2023-01-04 09:28
4 90%

Sudoku X

Times solved 12 Likes 11 Dislikes 1
17:11
x4
2023-01-03 21:05
4 86%
Oil 100%

Sheeps and Wolves

Times solved 23 Likes 16
19:44
x5
2022-12-24 21:02
4 86%

Mahjong pyramid

Times solved 19 Likes 13
14:48
x3
2022-12-24 10:28
4 90%

Guess the snippet

Times solved 52 Likes 36 Dislikes 2
14:55
x3
2022-12-13 10:39
4 85%
Corn 100%

Sudoku X

Times solved 12 Likes 12
17:10
x5
2022-12-04 10:21
4 93%
Ore 100%

Sudoku X

Times solved 12 Likes 11 Dislikes 1
16:16
x4
2022-12-04 07:01
4 86%
Coal 100%

Windoku

Times solved 12 Likes 11 Dislikes 1
19:46
x4
2022-12-01 21:02
4 86%

Sudoku X

Times solved 12 Likes 11 Dislikes 1
16:42
x5
2022-11-26 09:03
4 86%
Clay 100%
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