Monday, 8 October 2018

Puzzle 289: Windows Nurikabe

Instructions

Theme: Pinwheel

Windows Nurikabe Insructions

Rules: The objective is to divide the grid into shaded and unshaded cells, subject to the following rules:
  1. Each numbered cell is an island cell, the number in it is the number of cells in that island.
  2. Each island contains exactly one numbered cell.
  3. There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 areas of shaded cells.
  4. The pattern of shaded and unshaded cells in the solid box must be the inverse of the pattern of shaded and unshaded cells in the dashed box of the same colour. The orientation of which stays the same.

Monday, 24 September 2018

Puzzle 288: Large Squares Tapa

Instructions


Theme: Repetition 

Large Squares Tapa Instructions

Rules: The challenge is to shade some cells, subject to the following rules:
  1. All shaded cells must eventually connect, but must not form 2x2 areas.
  2. Numbers on some cells indicate the number of consecutive shaded cells around that cell, if there is more than one number then there must be at least one unshaded cell between the shaded regions, "?" is wild and can stand for any number from 1 up to the number of surrounding cells.
  3. Where clues are in large areas, they relate to all cells surrounding that area.
  4. Cells with numbers can never be shaded.


Monday, 10 September 2018

Puzzle 286: Signpost LITS

Instructions

Theme: Rank and File

Signpost LITS Instructions


Rules: The challenge is to shade four connected cells in each region, subject to the following rules:
  1. No two of the same tetrominos, including rotations / reflections are allowed to touch.
  2. All shaded cells must connect upon completion.
  3. No 2x2 area of shaded cells is allowed.
  4. Some cells include a letter. If the corresponding cell is shaded then the tetromino must match the letter.