Puzzle 71793:
Puzzle 71793:
Alexander Alekhine - Oldrich Duras
DSB-17.Kongress Hamburg (8), 1910 Alexander Alekhine - Oldrich Duras
DSB-17.Kongress Hamburg (8), 1910
DSB-17.Kongress Hamburg (8), 1910 Alexander Alekhine - Oldrich Duras
DSB-17.Kongress Hamburg (8), 1910