Untouch Sudoku 2015 - 1

Todays Sudoku is an Untouch Sudoku.

Rules of Classic Sudoku apply. Additionally, a digit cannot repeat in an adjacent cell, even diagonally.

Double Diagonal Sudoku 2015 - 1

Today's Puzzle is a Double Diagonal Sudoku. This is another of my puzzles from the Polish National Sudoku Championship.

Rules of Classic Sudoku apply. Additionally digits do not repeat on any of the marked diagonals.

Trio Non-Consecutive Sudoku 2015 - 1

Today we have another sudoku that was created for the Polish National Sudoku Championship. It is a Trio Non-Consecutive Sudoku. Rules of Classic Sudoku apply. Additionally, adjacent cells cannot contain consecutive digits. Grey cells can contain only the digits 1,2,3. Yellow cells can contain only the digits 7,8,9 and the white cells contain the digits 4,5,6.

No Donkey Step Sudoku 2015 N1

It has been a long time since I posted a sudoku. With a vacancy available in the Daily league, I thought it best to start posting again.

Today's sudoku is a No Donkey Step Sudoku. I had created this as one of the sudokus for the Polish National Championship but it ended up on the editing table :)

Rules of classic sudoku apply. Additionally, a digit cannot repeat with 2 cells from itself in any direction, even diagonally.

Next to 9 Sudoku 2015 - 1

A Happy New Year to all the puzzlers out there. May 2015 fulfil most if not all your dreams :)

We are just 1 day away from the start of the 2015 World Sudoku Grand Prix. All the best to all the participants. Here is one last practice puzzle before we head into the first leg of the Sudoku GP.

Today we have a Next to 9 Sudoku. Digits outside the grid indicate the digits that encompass the digit 9 in that row or column.