Already Solved Problem ¶
| No. | Part | Problem No | Problem Name | Develop Period | Source Code |
| 1 | 1 | 110101/100 | The 3n+1 Problem | . | 3n 1/Celfin |
| 2 | 1 | 110102/10189 | Minesweeper | . | minesweeper/Celfin |
| 3 | 1 | 110103/10137 | The Trip | . | The Trip/Celfin |
| 4 | 1 | 110104/706 | LCD Display | . | LCD Display/Celfin |
| 5 | 6 | 110603/10198 | Counting | . | Counting/Celfin |
| 6 | 6 | 110606/10254 | The Priest Mathmatician | . | The Priest Mathmatician/Celfin |
| 7 | 6 | 110608/846 | Steps | . | Steps/Celfin |
| 8 | 9 | 110908/10276 | Hanoi Tower Troubles Again | . | Hanoi Tower Troubles Again/Celfin |
| 9 | 6 | 110602/10213 | How Many Pieces Of Land? | 3 hours | How Many Pieces Of Land?/Celfin |
| 10 | 6 | 110601/10183 | How Many Fibs? | 2 hours | How Many Fibs?/Celfin |
| 11 | 10 | 111007/10249 | The Grand Dinner | 1 hour | The Grand Dinner/Celfin |
| 12 | 12 | 111201/10161 | Ant on a Chessboard | 40 mins | Ant on a Chessboard/Celfin |
| 13 | 12 | 111204/10182 | Bee Maja | 30 mins | Bee Maja/Celfin |
| 14 | 12 | 111207/10233 | Dermuba Triangle | 3 hours | Dermuba Triangle/Celfin |
| 15 | 11 | 111105/10003 | Cutting Sticks | 3 days | CuttingSticks/Celfin |
| 16 | 13 | 111303/10195 | The Knights of the Round Table | 1 hour | TheKnightsOfTheRoundTable/Celfin |
| 17 | 13 | 111306/10215 | The Largest/Smallest Box | 40 mins | TheLargestSmallestBox/Celfin |
| 18 | 13 | 111307/10209 | Is This Integration? | 2 hours | IsThisIntegration/Celfin |
| 19 | 1 | 110106/10033 | Interpreter | much | Interpreter/Celfin |
| 20 | 1 | 110107/10196 | Check the Check | 4 hours | CheckTheCheck/Celfin |
| 21 | 2 | 110201/10038 | Jolly Jumpers | 30 mins | JollyJumpers/Celfin |
| 22 | 13 | 111305/10167 | Birthday Cake | 1hour 30 mins | BirthdayCake/Celfin |
| 23 | 3 | 110301/10082 | WERTYU | 30 mins | WERTYU/Celfin |
| 24 | 1 | 110105/10267 | Graphical Editor | many days | Graphical Editor/Celfin |
| 25 | 2 | 110203/10050 | Hartal | 30 mins | Hartal/Celfin |
| 26 | 4 | 110401/10041 | Vito's Family | 1 hour | VitosFamily/Celfin |
| 27 | 5 | 110501/10035 | Primary Arithmatic | 30 mins | PrimaryArithmatic/Celfin |
| 28 | 5 | 110502/10018 | Reverse And Add | 2 hours | ReverseAndAdd/Celfin |
| 29 | 2 | 110202/10315 | Poker Hands | many days | PokerHands/Celfin |
| 30 | 3 | 110302/10010 | Where's Waldorf? | 1 hour 30 mins | WheresWaldorf/Celfin |
