SOrry, the second puzzle should be
Steinitz

I quote chessposter.com- Steinitz was the first one that understood that Chess has important constrains to creativity, it has a rigid internal logic, and only by understanding this logic is possible to win a game against strong players. He demonstrated the importance of these points of view both in his substantial writings and in his games. Steinitz's development marks the starting point of chess systematics. Before Steinitz, Chess theory was just at most a collection of tricks, especially tactical opening variations.
With Wilhelm Steinitz and his followers, the theory underlying not only opening, but also middlegame and endgame and, most important, the logical connection between the different parts of the game, began to be understood. Although Steinitz theories have been demonstrated to be only guidelines, not to be followed with closed eyes, the rules that he developed are still the backbone of modern Chess strategy.

Place the contents of the Chess box in a hat, shake them up vigorously, pour them on the board from a height of two feet, and you get the style of Steinitz. - Henry Bird
For those who doubt steinitz or call him a coward for not playing attacking chess, I shall demonstrate why Steinitz was so good.