Dear Sudoku Speeder,
I have some more good news
It's not all about score and rank now that Speed Sudoku has 4 medals for you to collect (one each for easy, medium, hard and very hard puzzles). Actually, each one is available in Bronze, Silver and Gold so make that 12 medals! Being awarded a medal will earn you the right to display it proudly on your profile and by your forum posts. Also, the Scoreboard now includes medal counts and is sortable so you can see how many medals you have compared to the competition. Check out the medals page to see what you can win. Those of you who already qualify for any medals will get them after your next win.
Medals are based on defeating unique race opponents, in other words, the number of players who solved the sudoku puzzle slower than you, without quitting, in games that you've finished.