The New Sudoku Players' Forum

[Kunegochu]

i cant do the advanced stuff yet so can you please base your decision on the fact that i will be cross hatching, and other basic techniques?

[JL]

http://www.samurai-sudoku.com has one every day

http://www.sudocue.net has a new samurai every week. They are more difficult, but you should be able to do the Moderate and Tough puzzles in the archive.