721
722
723
724
725
726
727
728
729
730
731
by Böttcher, Winfried
Published 2009
Published 2009
Book
732
733
Published in Post-Soviet puzzles
(1995)
Book
734
735
736
by Gottsched, Johann Christoph
Published 2023
Published 2023
Book
737
738
by Bingen, Dieter
Published 1998
Published 1998
Book
739
740