September 11th

Otto Zimmermann (11-09-1892 - 24-07-1979) Swiss composer

Otto Zimmermann was a chess player who had his best results in the 1920s. He composed direct mates.

Zimmermann, Otto
Schweizerische Schachzeitung, 1964
1^st Prize

#3

9 + 8

Show Solution

In the diagram position, 1...Re4-e7+? 2.Sc6xe7 or 1...Re4-b4+? 2.Sc6xb4 are followed by a mate by the King battery. The key exposes the white King to a new check:
1.Kb7-a6 ! (2.Sc6-d4/Sc6-e5#)
1...Re4-a4+ 2.Ka6-b5 ! (3.Sc6-d4/Sc6-e5#) 2...Ra4-a5+, Ra4-b4+ 3.Sc6xa5, Sc6xb4#
1...Re4-e6 2.Rh1-g1 (3.Rg1-g3#) 2...f5-f4 3.Bh3-g4# or 2...Re6xc6+ 3.Qa8xc6# or 2...Bf8-d6 3.Sc6-d4/Sc6-e5#