Untouch Sudoku 2013 - 1

Being a lazy Sunday, we don't want anything tough on us. So here is an easy Untouch Sudoku.

Rules of Classic Sudoku apply.

Additionally, a digit cannot touch itself, even diagonally. In other words, a digit cannot repeat in any adjacent cell, even diagonally adjacent cells.

Daily League - Distance Sudoku

At the Daily League that was started on Facebook, today we have the Classic Sudoku by Bram D L.

Each row, column and region must contain the digits from 1 to 9.
Outside each row and column the distance between two digits in that row or column is given. The order of the digits is top to bottom and left to right.

Clicking on this link will take you to Bram's blog where the image is hosted along with some other world class sudokus and puzzles.

Disjoint Sudoku 2013 - 1

Sorry for the delayed puzzle today.

Today we have a disjoint Sudoku.

Rules of classic sudoku apply. Additionally, Each relative cell position in the 3x3 boxes cannot contain the same digit.

Daily League - Classic Sudoku

At the Daily League that was started on Facebook, today we have the Classic Sudoku by Tom Collyer.

Each row, column and region must contain the digits from 1 to 9.

Clicking on this link will take you to Tom's blog where the image is hosted along with some other world class sudokus and puzzles.

Killer 2013 - 1

I suddenly realised that I had not created a Killer Sudoku for the blog. So here is last night's efforts.

Rules of classic sudoku apply. Additionally, the sum of the digits in a cage is equal to the number on the top left of the cage. A digit cannot repeat in a cage.