In addition to the Outsider, I have also invented the Letter Opener (and it's variants; The Nth Degree, All at C, P Soup etc.), the Pic 'n' Mix (exclusive to Puzzler) and Hex Pathfinder (exclusive to Puzzle Compendium) puzzles. Samples of these puzzles can be downloaded by clicking on the links below.

I also currently compile the Spiral, Round the Square, Misprints and Dilemma puzzles for Puzzler, the Blank Slate and Twenty Questions puzzles for Take a Puzzle, and the Blank Slate, Directions Please and Double Trouble puzzles for Take a Crossword.

L Plates / Solution

Pathfinder Hex / Solution

Pic 'n' Mix / Solution