WPC 2023/Round 6

Duration: 35 minutes. Total point value: 360 points. Round winner: Ken Endo (Japan), 530 points.

Puzzles

All puzzles in this round were written by Serkan Yürekli. This is a combination puzzle.

1. Battleships, 60 points
2. Minesweeper, 60 points
3. Parking Lot, 60 points
4. Star Battle, 60 points
5. Statue Park, 60 points
6. Wittgenstein Briquet, 60 points

From the IB:

"Every puzzle contains two shapes, either colored maple leafs (in red) and/or colored stars (in blue). There are a total of 6 maple leaf shapes and 6 star shapes in all the grids. The maple leaf shapes must be matched in three pairs, and the star shapes must also be matched into three pairs. Each pair (of leaves or stars) must be exactly the same (including empty cells). Sibling shapes cannot be matched by rotating or reflecting.

Maple leaf and star shapes are places where more than one puzzle is connected. The connections are just at the level of the individual cells in terms of “containing something” or “containing nothing”. As you can see in the example below, a 1×1 "star" cell in the Star Battle can be part of a 2-unit ship in the Battleships, or two different automobiles in the Parking Lot can be part of the same block in the Wittgenstein Briquet, as long as the pattern of occupied cells is preserved within the leaf/star and the extra pieces are not part of the leaf/star.

Each puzzle may have multiple solutions by itself, but there is only one solution that will complete all other grids successfully and only that specific answer will be marked correct. Contestants will be awarded the total point values of all correctly solved puzzles."

Example

From the IB.