WPC 2015/Round 9

From WPC unofficial wiki

Duration: 50 minutes. Total point value: 500 points. Round winner: Yanzhe Qiu (China), 510 points.

Puzzles[edit]

All puzzles in this round were of well-known types but with an additional rule that the grey areas should be filled in differently. All puzzles in this round were written by Vladimir Portugalov.

Note: some of the examples in the below are low-res screenshots because the author couldn't find a way to shade/place an object over a grey region in penpa

1. Loop (Loopfinder), 30 points
Puzzle 1: Example
Puzzle 1: Solution
2. Sudoku (essentially Extra Regions Sudoku), 30 points
3. Ripple Effect, 45 points
Puzzle 3: Example
Puzzle 3: Solution
4. Magic Summer, 70 points
Puzzle 4: Example
Puzzle 4: Solution
5. Snake, 70 points
Puzzle 5: Example
Puzzle 5: Solution
6. Kakuro, 75 points
Puzzle 6: Example
Puzzle 6: Solution
7. Star Battle, 85 points
Puzzle 7: Example (1 star)
Puzzle 7: Solution
8. Tapa, 95 points
Puzzle 8: Example
Puzzle 8: Solution