Killer Sudoku by Thomas Snyder - The Art of Puzzles

Enjoy this Killer Sudoku from the US Sudoku Grand Prix Round by Thomas Snyder released last August with an "Eight Ouroboros" theme.

Thomas Snyder

play free online sudoku puzzles on your phone

Thomas Snyder PuzzleNation.com Blog

To Wear the Sudoku Crown, One Must Solve Any Number of Puzzles - The New York Times

US Sudoku Team Qualifying - Solutions

Thomas Snyder - the world sudoku champion and great mind curious facts

Thomas Snyder

US Sudoku Team Qualifying - Solutions

I can do hard rated puzzles in under 4 minutes but when I go up 1 level to expert I get stuck with these combinations, any names of techniques I can research

The mathematics of games and puzzles from cards to sudoku