| 28.07.2009: | Euler 68 – solving problems the hard way, but having fun along the way |
| 27.06.2009: | Solved 100th problem on Project Euler! |
| 19.06.2009: | Project Euler problem 83 – how creeps can help |
| 19.06.2009: | Project Euler problem 66 and continued fractions |
| 02.03.2009: | Posting Project Euler solutions in my blog |
| 01.03.2009: | Project Euler problem 104 |
| 28.02.2009: | Project Euler problem 69 |
| 28.02.2009: | Project Euler problem 43 |
| 25.02.2009: | Project Euler problem 26 |
| 20.02.2009: | Project Euler problem 12 |
