EduPuz Group Puzzle Type 'Sudoku-by5'

Difficult Sudoku-by5 puzzle for Sunday July 12, 2009 with the first 3 steps marked

Printer friendly version.

There are 14 steps required to solve the puzzle above with a total of 246 empty locations that must be determined .

The locations for the first 3 steps are marked in the puzzle above.

Explain all of the deductive steps required to solve this puzzle.

See the puzzle answer grid.

Sunday July 12, 2009   http://mysite.verizon.net/edupuz