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.

Sudoku by Thomas Snyder - The Art of Puzzles

The Art of Sudoku by Snyder, Thomas

Sudoku by Thomas Snyder Sudoku, Crossword, Crossword puzzle

Sudoku puzzles->Variations, Sudoku, Books

US Sudoku Team Qualifying - Solutions

The mathematics of games and puzzles from cards to sudoku

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

Blog, Puzzazz

Crossword Puzzles by Brendan Emmett Quigley: CROSSWORD #130 & Sudoku spiel