Monday, 13 August 2018

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.

Monday, 6 August 2018

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.

Monday, 30 July 2018

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.
     

Monday, 16 July 2018

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.