Queen's Gambit Declined Semi-Slav Moscow Variation. This opening study video was inspired by game 1 of 6 at the Zurich Chess Challenge between Kramnik and Aronian. Today we look into the theory behind this chess opening and an effective strategy to employ going into the middle game. From Arizona to the World .... our free chess instructional and training videos are sure to elevate your game. Our free chess videos are an extension of the Metro Phoenix Chess Club in Phoenix, Arizona. Our chess coach and presenter today is D-MAN. Enjoy and happy chess playing everyone. Metro Phoenix Chess offers local and long distance chess lessons.