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D4 Study

1 • penguininblack •
  1. Chapter 1
  2. Kasparov, Garry (2690) - Portisch, Lajos (2600)
  3. Chapter 3
  4. Chapter 4
  1. Speedrix
  2. penguininblack

Rook endgame study (c and h pawn odds)

1 • penguininblack •
  1. LearnerOne - Speedrix
  2. Penguininblack - Speedrix
  3. Bonus Chapter showing minority attack
  1. Speedrix
  2. penguininblack

Nimzo-indian preparation

1 • penguininblack •
  1. e3
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Game study

1 • penguininblack •
  1. penguininblack - chesslife33
  1. penguininblack

Game study

1 • penguininblack •
  1. penguininblack - vasiliy5023
  1. penguininblack

penguininblack's Study

1 • penguininblack •
  1. Chapter 1
  1. penguininblack