French pre-qualification for WSC 2011

Yannick Meyapin is organizing a prequalification Sudoku tournament within sight of french qualifications for WSC 2011. It will last on 23 and 24 April, with the possibility for everyone to start when he/she wants to.
The tournament will be hosted by and will use the usual submission system (form without preliminary registration). Non-french players are of course welcome to participate!
Duration of the tournament: 2h.
Sudoku types :
- Just one cell sudoku
- Product sudoku
- Sudoku 147
- Alphabet sudoku
- Surprise (the rule of this puzzle will be unveiled in the tournament file and will be accompanied by an example)
- Untouch sudoku

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