The Czech round of the puzzle GP will take place next week, the instruction booklet has been posted. Here’s a practice puzzle for one of the types.
Rules Place numbers from 1 to 6 in some cells so that no number repeats within a row or column. For rows and columns that have clues given on the outside, these numbers correspond to all sums of blocks of adjacent digits within that line, in the correct order. Furthermore, draw a loop that visits all cells without a number, passing horizontally and vertically from cell centre to cell centre.
Maybe Puzzles 
Das ist ein sehr schönes Exemplar! Und die Rätselart gefällt mir auch. Hoffentlich klappt das dann im GP auch so gut…
Ich könnte mir gut vorstellen, dass es im GP weniger harmlos wird.
Wait I just realized that you count 20, 21, 24, 25… Where are puzzles 22-23?
Oops, thanks!
Ja, vermute ich allerdings auch…