November 26th

Carl Kockelkorn (26-11-1843 - 16-07-1914) German composer

Carl Kockelkorn and Johannes Kohtz published their first common chess problem when they were 17 and being in total accord after a short while they decided to publish their problems as co-productions. After Carl Kockelkorn died in 1914, Kohtz still published his problems under both authors names.

Together they founded the logical school of chess composition, in reaction against the old German school founded by Johann Berger.

Kohtz, Johannes & Kockelkorn, Carl
The Times, 26^th Sep 1902 (No.176)

#3

8 + 4

Show Solution

1. R3h1! ZZ (Indian)
1... Kg5 2. Bh2 ZZ 2... Kg4, Kxh6 3. Rg1, Bf4#
Other variations:
1... g5 2. Bh2+ Kg4 3. Rg1#
1... Kg4/Kg3 2. Rxg6+ Kf4 3. Bh2/Rh4#

July 18th

Johannes Kohtz (18-07-1843 - 05-10-1918) German composer

Johannes Kohtz met Carl Kockelkorn when they were still pupils and they engaged in chess composition. They published their first problem when they both were 17. Kohtz and Kockelkorn published their book "Das Indische Problem" in 1903 and "Zur Kenntnis des Schachproblems", a compilation of Bayersdorfer's problems, in 1902.
Even after the death of his close friend Kockelkorn on July 16, 1914, Kohtz still published his problems under both authors names. (source: Wikipedia).

He created the famous Roman theme with Carl Kockelkorn.
"A good defence to a threat is eliminated (usually by means of a foreplan) and a bad defence by the same unit (not previously available) is introduced."

Kohtz, Johannes & Kockelkorn, Carl
British Ty. 1866
2^nd Prize, Set

#3

10 + 6

Show Solution

1.Qf8-f1 ! (2.Ke1-e2 ~ 3.Qf1-b1/Qf1-f3#)
1...Sb6-~ 2.Qf1-f3+ Ke4xf3 3.Ba2-d5#
1...Sb6-c4 2.Qf1-d3+ Ke4xd3 3.Ba2-b1# (2...Ke4-d5 3.Ba2xc4#)
1...Sd8-c6/Sd8-f7 2.Ba2-b1+ Ke4-d5 3.Qf1-f7#
1...Sd8-e6 2.Qf1-f5+ Ke4xf5 3.Ba2-b1#
3 wQ sacrifices.