Here's a hard sudoku

Just found this one I used to test a sudoku-solving program about 4 years ago.  There is a singular solution but it took around 2 minutes to find with my algorithms.

9

4

1

5

2

8

3

5

7

1

9

2

2

4

3

8

7

6

4

1

9

Feel free to give it [...]

An explanation

I thought it would be a good idea if I wrote down what’s on my mind at the moment.  It should explain why I am defaulting to sad and not happy, why I can seem a little distracted, why I seem not to care about things I used to care about and why I’m not cycling.  You can read it and understand why, or you can stop reading and assume I have good reasons.  Either way, I don’t want to talk about it other than on this blog: not on facebook, not on twitter, not in real life – please don’t read it if you aren’t happy with that condition. Continue reading An explanation