Puzzle 281: Castle Wall

Instructions

Theme: Anti-symmetrical Pinwheel

Castle Wall Instructions

Rules: The challenge is to draw a single loop, without crossings or intersections, subject to the following rules:

1. Bordered unshaded cells and shaded cell do not form part of the loop.
2. Bordered unshaded cells must be inside the loop upon completion.
3. Shaded cells must be outside the loop upon completion.
4. Numbers sum the length of the loop segments in a given direction, each cell border crossed in that direction represents a count of one.
   
   
   
    

Puzzle 280: Coloured Tapa

Instructions

Theme: Half colour, half wild

Puzzle 279: Regional Akari

Instructions

Theme: Big squares, little squares

Regional Akari Instructions

Rules: The challenge is to light up all white cells, subject to the following rules:

1. Each region contains exactly one light bulb.
2. Each light bulb illuminates all white cells in a horizontal and vertical direction until the beam hits a black cell or a wall.
3. Light bulbs cannot shine on each other.

Puzzle 278: Nanro

Instructions

Theme: Crossing that gap

Nanro Instructions

The objective is insert numbers, subject to the following rules:

1. Each area must contain at least one numbered cell.
2. Numbers in some cells count the total of numbered cells in that area.
3. Where two numbers connect across a boundary between areas, those numbers must be different.
4. Numbers must form one connected area with no 2x2 areas of numbered cells.

Puzzle 277: Binary Heyawake

Instructions

Theme: Parquet