Puzzle 284: Binary Heyawake

Instructions

Theme: Large Areas

Puzzle 283: Regional Masyu

Instructions

Theme: One of each in every box!

Regional Masyu Instructions

Rules: The challenge is to draw a loop around the grid, subject to the following rules:

1. White circles must be travelled straight through, but the loop must turn in the previous and/or next cell in its path.
2. Black circles must be turned upon, but the loop must travel straight through the next and previous cells in its path.
3. The loop must make the same number of turns in each region it enters.
   
   
   
   
   
    

Hybrid 5: Starship Battle

Instructions

Theme: Concentric Circles

Starship Battle Instructions

Rules: The challenge is to add ships to the grid, subject to the following rules:

1. All given ships on the in the key must be included in the grid with no others.
2. Numbers on some rows and columns indicate the numbers of cells filled by ships.
3. No ship may touch another, even diagonally.
4. Exactly one ship region is present in each region.
   

Puzzle 282: Inversed LITS

Instructions

Theme: Centre Square

Inversed LITS Instructions

Rules: The challenge is to shade cells in each region, subject to the following rules:

1. Each area contains 4 orthogonally connected unshaded cells.
2. No two of the same tetrominos, including rotations / reflections are allowed to touch vertically or horizontally.
3. All shaded cells must connect upon completion.
4. No 2x2 area of shaded cells is allowed.