Monday, 10 December 2018

Puzzle 298: Windows Tapa

Instructions


Theme: Overlap

Windows 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 between 1 and 8.
  3. Cells with numbers can never be shaded.
  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, 3 December 2018

Puzzle 297: Four Directions Yajilin

Instructions

Theme: Sentries

Four Directions Yajilin Insturctions

Rules: The challenge is to draw a single, closed loop and shade some cells, subject to the following rules:
  1. Numbered cells indicate the amount of shaded cells in the corresponding row and column.
  2. Shaded cells cannot touch horizontally or vertically but may touch diagonally.
  3. All remaining white cells should be traversed by a single closed loop, with no branches and which doesn't cross itself.

Monday, 26 November 2018

Puzzle 296: Chocona

Instructions 

Theme: Powers of 2

Chocona Instructions

Rules: The objective is to divide the grid into shaded and unshaded cells, subject to the following rules:
  1. Numbers indicate how many shaded cells are in a region.
  2. Shaded cells must form rectangles, independently to the region borders.
  3. Shaded rectangles must not touch horizontally or vertically.

Monday, 19 November 2018

Puzzle 295: Nurikabe Pentominoes

Instructions 

Theme: Full Set

Nurikabe Pentominoes Instuctions

Rules: The objective is to divide the grid into shaded and unshaded cells, subject to the following rules:
  1. Each lettered cell is an island cell, the letter in it indicates the pentomino it is part of (tetrominoes used in the example below).
  2. Each island contains exactly one lettered cell.
  3. There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 areas of shaded cells.