Thursday, 30 May 2013

Puzzle 10: Sudoku

Instructions

Theme: Chain

Sudoku Instructions


Rules: The challenge is to fill in the numbers 1 to n in the grid, subject to the following rules:
  1. There is are the numbers 1 to n in each row and column.
  2. Each area of size n also has the numbers 1 to n.


Wednesday, 29 May 2013

Puzzle 9: LITS

 

Instructions 

Theme: Centre Square

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.

Tuesday, 28 May 2013

Puzzle 8: Shakashaka

Instructions

Theme: Skewed 2s

Shakashaka Instructions


Rules: The challenge is to create a grid of rectangles, subject to the following rules:
  1. No two rectangles can share an edge.
  2. Cells can only be half-painted along the main diagonal, or not painted at all.
  3. Numbers in some cells denote the number of edges it shares with the shaded triangles.


Monday, 27 May 2013

Puzzle 7: Fillomino

Instructions


Theme: 1 to 6

Fillomino Instructions


Rules: The challenge is to add numbers to all cells, subject to the following rules:
  1. All numbers on the grid must be part of an polyomino of the same order.
  2. No two polyominoes of  the same order can touch horizontally or vertically.
  3. Givens may or may not be part of the same polyomino, conversely not all final polyominoes may start with a given.