Here you can download the practice puzzles:
Booklet (pdf - 118kB)
Time for solution of the competition puzzles will be 2 hours.
The puzzles of the Booklet were prepared by Slovak sudoku group K1Z (KLUB 162 Zelenáčov).
Blanka Lehotská, Martin Kollár, Miška Bieliková, Zuzka Hromcová a Matúš Demiger.
Chinese explanation of the puzzles you can find here: