Issac Kashdan, GM, 2 time US open champion 1938 and 47. 5 time chess Olympiad. Ranked #2 in the world from Nov.1932 to June 1934 behind Alekhine. Kashdan is a great attacking player.

  Here is a game by Kashdan with very nice sacrafices and aggressive play.

                                      Borris Siff vs. Isaac Kashdan 0-1  1948