Practice puzzles

Here you can download the practice puzzles:
Booklet (pdf - 135kB)
Booklet solution (pdf - 69kB)

Übungsaufgaben (German version)

Booklet (pdf - 135kB)


Please take a look at the second version of booklet! There are these changes:
10) There was a mistake in one like - R6C6/C7 => moved to R6C7/C8
17) Added this sentence into rules: Lines cannot cross, branch off, or go through the cells with circles.

Adobe Acrobat

Time for solution of the competition puzzles will be 2 hours.
The puzzles of the Booklet were prepared by Vladimir Portugalov.