Martin Duval by day is an accountant, and by evening he is a husband and a father, where he spends time enjoying his family and cats and enjoys the challenge of keeping all the members of his family happy (cats included). But at night, when everything is quiet, he becomes a creator of puzzles. He tried to identify new puzzles, to improve old ones, and to find different twists on existing ones. He often falls asleep before something emerges, but sometimes ... Martin also enjoys playing soccer, reading, watching hockey and trekking and sleeping when the inspiration is missing.