[what is this?]

[what is this?]

Blackmar Diemer: Vienna Defense 4 ... Bf5 1 game, 1948 Blackmar Diemer: Ziegler Defense 5 ... c6 1 game, 1965 Blackmar-Diemer Gambits Also see: Blackmar-Diemer Gambit: Ryder Gambit 5 Q x f3 22 games, 1866-2001 Blackmar-Diemer Teichmann Defense 5 ... Bg4 2 games, 1951-1962 GrandMasters of Chess by HCS Under construction 33 games, 1790-1972 Great Moves 6 games, 1850-1857 My Daily Workbook 5 games, 1899-2010 Queen Pawn Game: Baltic Defense... Bf5 3 games, 1890-2013 Queen side 'cup' David Rudel mentions the "Queen side cup" as a good defensive formation to hold the queenside (on page 49 of Zuke'Em) ... increasing the mobility of white's bishops. Do you know of any other games where white forms a queen side "cup" or "bowl" ... a4, b3, c3, d4? When is it appropriate to form the cup and when is it not appropriate? What is the function of the 'cup' When can the cup be safely be dismantled? Is this Q-side cup useful in any other openings or defenses? 3 games, 1996-2009 Stonewall Attack & The Dutch Defense 39 games, 1882-2006 The Barry Attack 2 games, 1985-1988 The Colle System: Koltanowski, Phoenix, Zukertor 35 games, 1881-2017 The Nimzo-Indian 7 games, 1930-2005 The Nimzo-Larsen Attack Some variations employ a white hedgehog ... and the Fischer Plan 18 games, 1927-2008 The Sicilian Defense by Ray From Little Rhody 88 games, 1723-2012