Sudoku types for month November 2012

There will be 4 Classic Sudokus in Round1.
The variations in Round2 in this month are Toroidal Sudoku, Outside Sudoku, Consecutive Sudoku, No Knight Step Sudoku,
Rules and examples are provided below.

Author

Sudokus for November 2012 are written By Fred Stalder (Fred76)

Classic Sudoku

Place the digits 1 through 9 into the empty cells in the grid so that each digit appears exactly once in each of the rows, columns, and bold outlined 3X3 boxes.

Answer key for the above Sudoku is : 416978325, 327186459

Toroidal Sudoku

Every digit from 1 through 7 has to appear exactly once in every row, every column, and outlined regions.
Some of the outlined regions will wrap between the top and bottom edges, and/or the left and right edges of the grid.

Outside Sudoku

Apply Classic Sudoku rules.
The digits outside the grid must appear in one of the first three cells encountered from that edge of the grid.

Consecutive Sudoku

Apply Classic Sudoku rules.
Neighbouring cells which contain consecutive digits are marked by dots. All possible dots are marked.

No Knight Step Sudoku

Apply Classic Sudoku rules.
No cell that is a knight-step away can contain the same digit.

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