WPC 2023/Round 19

Duration: 45 minutes. Total point value: 440 points. Round winner: Ken Endo (Japan), 590 points.

Puzzles

This round features two sets of combination puzzles. From the IB:

"In this round, you will be given four puzzles on four different layers for each genre. Your goal is to overlap the four layers in the correct order, without any rotation or reflection, for each genre and solve each of the puzzles. The layers have holes, through which the lower layer can be seen. The holes on the lowermost layer serve as black cells (i.e., empty cells where no numbers can be written and that cannot be part of any region) for the puzzle on that layer. A hole in any layer other than the lowermost layer will show whatever is in the cell on the layer immediately below. If there is a number, you have to use that number on the layer you are on. You should be aware that even if the number or anything you add appears through a hole, that cell could be anything on the layer you are on, because being seen only applies to the clues given."

1.	Holey Fillomino by Fatih Kamer Anda, 40+40+40+40 points

Puzzle 1: Example

Puzzle 1: Solution

2.	Holey Araf by JinHoo Ahn, 70+70+70+70 points

Puzzle 2: Example

Puzzle 2: Solution