Kriegspiel (chess) illegal, the player tries again; if it is legal, that move stands. Each player is given information about checks and captures. They may also ask the referee if there are any legal captures with a pawn. Since the position of the opponent's pieces is unknown, Kriegspiel is not a game with perfect information. As each player cannot see his opponent's pieces, the game is sometimes referred to as "blind chess". There are several different rule sets for Kriegspiel. The most widespread rules are those used on the Internet Chess Club, where Kriegspiel is called "Wild 16". The rules are as
Frank Marshall (chess player) attacking chances and scores close to 50 percent with the Marshall, an excellent result for Black. The Marshall Attack is so respected that many top players often choose to avoid it with "Anti-Marshall" variations such as 8.a4. During his early career, Marshall was primarily known as a colorful tactical player in the Morphy tradition. When playing the White pieces, he normally used e4 openings such as King's Gambit and Vienna Game. As Black, he favored the Albin Countergambit as an answer to the Queen's Gambit. By the 1920s, most elite chess players had switched entirely to d4 openings and a