Weiss, the pride of the French draughts masters, played his risky game averse to all theory and method. The more beautiful, the more complicated, the better, never cleanly finished or analytically correct, but delicate and sharp in subtleties. Thus arose the peculiar games or game fragments from which one could never determine one's real strength. What he accomplished came from the treasury of his resourceful brain. He knew he could rely on that wonderful intuition which had sustained him as "invincible". That is why the games, problems, and end game fragments saved his mind. Anyone who wants to briefly demonstrate the beauties of draughts for players of every strength will find his examples in the heyday of Weiss thanks to this grandmaster's famous books "Tactique et strategy" and "250 positions nouvelles".