I was an avid puzzle designer in the mid 2000’s, specializing in variants of killer sudoku (aka sum sudoku / samunamupure). Those days, I was very active on the forums at djape.net, under the username h3lix.
In 2010 I brought to completion a book of my own hand-designed Anti-Chess Killer Sudoku puzzles. All proceeds went to Architecture for Humanity, which closed its doors in January 2015. I briefly maintained a Facebook page to promote the project and post new puzzles.
I’ve recently rediscovered my passion for puzzle design, mining my old Nikoli books for ideas. The purpose of this blog is to break out of specializing exclusively on killer sudoku and to experiment with different types of puzzles.
You can email me at adamsdan24 [at] gmail [dot] com.