| ID | Name | Tags | Submitters | % Correct | Average |
|---|---|---|---|---|---|
| tan | Task Cheap Travels | 37 | 81% | 89 | |
| ach | Task Chess | pa 2009 final-trial | 18 | 33% | 37 |
| ach | Task Chess | 6 | 33% | 42 | |
| sza | Task Chessboard | ontak 2010 | 9 | 55% | 64 |
| sza | Task Chessboard | 8 | 50% | 63 | |
| sza | Task Chessboard [B] | pa 2008 r5 b | 14 | 35% | 46 |
| sza | Task Chessboard [B] | 6 | 50% | 55 | |
| cze | Task Chocolate | oi 10 e1 | 716 | 91% | 92 |
| cze | Task Chocolate | 137 | 89% | 92 | |
| poc | Task Chute | 6 | 33% | 91 | |
| poc | Task Chute | oi 2 e3 d1 | 43 | 48% | 87 |
| szy | Task Cipher | 33 | 72% | 80 | |
| szy | Task Cipher | oi 9 e3 d2 | 222 | 77% | 88 |
| kre | Task Circles | pa 2012 final | 23 | 52% | 73 |
| kre | Task Circles | 14 | 71% | 89 | |
| gra | Task Circular Game [A] | 4 | 75% | 75 | |
| gra | Task Circular Game [A] | pa 2009 r5 a | 5 | 100% | 100 |
| wsp | Task Climbing [B] | pa 2011 r2 b | 17 | 58% | 61 |
| wsp | Task Climbing [B] | 10 | 20% | 24 | |
| kli | Task Cliquers [A] | pa 2008 r5 a | 12 | 50% | 57 |