1
by Anweiler, Oskar
Published 1974
Published 1974
Book
3
4
5
6
7
Published in Post-Soviet puzzles
(1995)
Book
9
Published in Post-Soviet puzzles
(1995)
Book
10
11
12
13
14
15
16
18
19
by Preobrazhensky, Evgenii A.
Published 1980
Published 1980
Book
20