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Nimzo-Indisch

1 • Donato9437 •
  1. Hauptvariante
  2. Rubinstein-Variante (4. e3)
  3. 4. f3
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Pearl of Poznan 2.0

1 • Donato9437 •
  1. The Original (Tylkowski - Antoni Wojcienchowski 1931 Poznan)
  2. The same but in Spain (Martin Ortuerta Esteban - Jose Sanz Aguado 1933 Madrid)
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  2. dwildenrath