list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
137 Partition   17 780 36.67
17
20
136 Transformation   77 36.55
17
17
135 Men at work   1 258 37.99
24
26
134 Phony Primes   1 179 19.18
23
23
132 Help R2-D2!   12 758 29.52
19
16
131 Square dance   314 49.84
1
1
130 Rent your airplane and make money   88 3339 28.57
18
17
123 Paying in Byteland   2 475 46.73
6
17
122 Voracious Steve   1 266 29.60
17
17
121 Timetable   53 15.12
17
17
120 Solitaire   7 352 23.40
26
16
119 Servers   109 19.71
17
17
118 Rhombs   104 47.01
1
34
116 Intervals   5 910 22.60
21
24
115 Family   2 71 12.02
28
28
112 Horizontally Visible Segments   1 155 27.70
17
34
110 Fill the Cisterns   28 1401 31.32
21
20
109 Exchanges   1 124 45.17
34
108 Decoding Morse Sequences   7 855 23.99
24
17
107 Calendar of the Maya   5 131 44.59
21
17
106 Binary Stirling Numbers   3 2622 36.55
4
17
105 Alice and Bob   3 166 27.04
42
42
104 Highways   2 750 19.97
23
28
102 GX Light Pipeline Inc   75 30.85
101 Fishmonger   48 2294 38.09
17
21
100 Tower of Babylon   44 3056 50.51
19
21
99 Bus   182 22.10
34
17
98 Dance Floor   3 716 40.30
12
12
97 Party Schedule   250 8835 36.15
14
16
96 Shopping   46 3046 44.14
15
11
95 Street Parade   318 18196 29.02
14
11
94 Numeral System of the Maya   4 2577 40.50
10
6
92 Cutting off Squares   -1 250 42.55
1
1
91 Two squares or not two squares   79 6014 24.58
11
14
90 Minimizing maximizer   3 365 24.96
17
26
89 Hang or not to hang   1 61 19.26
17
17
88 Which is Next   1 127 20.65
34
34
87 Football   1 60 21.86
17
1
86 November Rain   4 292 17.48
21
21
85 Dice Contest   44 21.14
34
34
84 Shortcut   1 231 31.61
17
9
83 Bundling   1 49 38.85
17
17
82 Easy Problem   4 491 34.72
17
9
78 Marbles   68 7900 34.96
15
13
77 New bricks disorder   1 283 37.72
17
17
76 Editor Inverse   64 17.34
75 Editor   51 39.33
73 Bacterial   1 70 19.97
50
17
71 Tree   3 447 28.48
12
9
70 Relations   1 246 27.20
1
1

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