PDF

or solve online (using our beta test of Penpa-Edit tools).

Theme: Logical (Originally on 2014 Hungarian Puzzle Championship)

Author/Opus: This is the 4th puzzle from guest contributor Zoltán Horváth.

Rules: Put the given shape into each box; the shape can be rotated and reflected. Relationship signs (<, =, >) indicate the relative number of shaded cells for that row/column in adjacent boxes.
See also this smaller example with four boxes:

Answer String: Enter the length in cells of the black shaded segments in the marked rows, starting at the top. Separate each row with a comma. Shaded groups continue across the box boundaries. The example has the key “5,32”.

Time Standards (highlight to view): Grandmaster = 3:30, Master = 4:30, Expert = 9:00

Solution: PDF

PDF

or solve online (using our beta test of Penpa-Edit tools using a composite mode where left click inside cell shades square, left click + drag draws line segment, right click inside cell adds dot, and right click on cell edge adds an x.)

Theme: Grid Symmetry and Logic (Originally on 2014 Hungarian Puzzle Championship)

Author/Opus: This is the 3rd puzzle from guest contributor Zoltán Horváth.

Rules: Locate a snake in the grid, whose head and tail are given. The snake does not touch itself, not even diagonally, and cannot use any black squares. Numbers outside the grid indicate the number of snake cells in that row/column. See also this example:

Answer String: Enter the length in cells of each of the snake segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “2,13”.

Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:00, Expert = 4:00

Solution: PDF