WPC 2023/Round 3

Duration: 50 minutes. Total point value: 500 points. Round winner: Naoki Sekiya (Japan), 570 points.

Puzzles

Each puzzle consists of a pair of number placement puzzles of the same type involving outside clues. From the IB:

"Each number at the top is drawn along either the left or right side of the waterfall and these numbers — together with the frames — create two separate puzzles. Solve these puzzles, where the outside clues might not necessarily be determined exactly, but the solutions in the frames themselves are decisively settled (such ambiguities are given as light colored-dashed numbers in the example solutions). Numbers flow straight through their own passages (no meandering), and may stop at any vacant cell, but not on or beyond a given rock (this does not apply to the rocks located during the solving; it only applies to the given rocks). Numbers may pass each other freely, but they cannot land on the same cell, or a cell inside a frame. Every one of these drawn-along numbers must serve as an outside clue to a puzzle."

Layout Example

1.	Skyscrapers (Gap) by Ashish Kumar, 30+30 points

Puzzle 1: Example

Puzzle 1: Solution

2.	Smashed Sums by Zoltán Horváth, 70+70 points

Puzzle 2: Example

Puzzle 2: Solution

3.	Top Heavy Number Place (First Seen) by Takeya Saikachi, 70+70 points

Puzzle 3: Example

Puzzle 3: Solution

4.	Easy as Japanese Sums (Hybrid of Easy as and Japanese Sums) by Serkan Yürekli, 80+80 points

Puzzle 4: Example

Puzzle 4: Solution