March 23rd

Adolf Herrmann Rudolf Ferdinand Kraemer (23-03-1898 - 25-06-1972) German composer

Ado Kraemer "Die Schwalbe", Januar/März 1968 [Thanks to Александр Никитин]

Adolf Herrmann Rudolf Ferdinand Kraemer, better known as Ado Kraemer, was specialized in logical three- and moremovers. He published with his very close friend Erich Zepler two remarkably chosen and commented collections of problems: "Im Banne des Schachproblems" in 1951 and "Problemkunst im 20. Jahrhundert" in 1957.
When you learn that Zepler was a Jew and migrated to England in 1935, while Kraemer was an SS (SS-Obersturmführer), as Anders Thulin says, "it seems to make his cooperation with Zepler at the time even more remarkable."
Some information here.

Kraemer, Adolf Herrmann Rudolf Ferdinand & Zepler, Erich Ernest
Die Schwalbe, Jul 1952
1^st Prize

#3

7 + 8

Show Solution

1.Rc3! (2.Sxg6,Rh3+)
1...Qxg8 2.Rc6!! (3.Sxg8#) Kg7 3.Sd7#
1...Qe4+ 2.Sxe4 (3.Sf7,Rh3#)
The amazing key (allowing Black to check the white King) is followed by an equally amazing switchback of the white Rook to c6 and a beautiful battery mate 3.Sd7#.

Kraemer, Adolf Herrmann Rudolf Ferdinand & Zepler, Erich Ernest
Neue Leipziger Zeitung, 1933
1^st Prize

#4

7 + 2

Show Solution

1.h8=S ! (2.Sg6 ZZ)
1...Rg4+ 2.Sg6 (3.Sc1#) and now:

• 2...Rxg6+ 3.Kf8 (4.Sc1/Sb4#) Rg8+ 4.fxg8/Q/B#
• 2...Rc4 3.Sf4 ZZ and depending on the bR moves, folllows 4.Sc1# or 4.Sb4#

Kraemer, Adolf Herrmann Rudolf Ferdinand
Deutsche Schachzeitung, 1936

#3

6 + 1

Show Solution

1.Rb1 ! (2.Qh5 Kg7 3.h8=Q#)

1...Kg7 2.Qb7+ Kh8 3.Qb2# Bristol prepared by the hidden key.
2...Kf8/Kh6, Kf6 3.h8=Q, Rb6#

The mate 3.Rb6# makes the white Rook active again and is a nice touch.