An old study by Otto Dehler, German composer. Solve the study and recognize all tactical actions, motifs and elements! White to move and draw (O. Dehler, 1911)   (First try to solve the study without moving the pieces!)

  Mostly geometry. Solve the study and recognize all tactical actions, motifs and elements! White to move and win (J. Aizikowicz, 1961)   (First try to solve the study without moving the pieces!)

  Weak enemy king is a White’s main motif. Solve the study and recognize all tactical actions, motifs and elements! White to move and win (G. Afanasiev, E. Dvizov, 1969)   (First try to solve the study without moving the pieces!)

  An interesting study rich with tactics. Solve the study and recognize all tactical actions, motifs and elements! White to move and draw (E. Markov, 1997)   (First try to solve the study without moving the pieces!)