German Alexandrowitsch Umnow

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German Alexandrowitsch Umnow ( Russian Герман Александрович Умнов ; born December 10, 1937 in Ivanovo ; † May 26, 2016 ) was a Russian chess composer from Podolsk .

Umnow has published several hundred chess compositions, many of which have received awards at home and abroad. He was the master of the sport of the USSR in chess composition and a national judge. For many years he was the chairman of the Russian Chess Composition Commission. He published joint works with Vyacheslav Kopayev and Andrei Lobusov . The following endgame study is important in endgame theory .

German Alexandrowitsch Umnow
Uralsky problemist, 2000
  a b c d e f G H  
8th Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 8th
7th Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 7th
6th Chess klt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 6th
5 Chess plt45.svg Chess pdt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 5
4th Chess --t45.svg Chess kdt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 4th
3 Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 3
2 Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 2
1 Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 1
  a b c d e f G H  
Draw, Black to move

Template: checkerboard / maintenance / new

Solution:
1.… Kc5
2. Kb7 b4
3. a6 b3
4. a7 b2
5. a8D (or with change of move 5. Kc8 b1D 6. a8D)
5.… b1D + Although the black king is actually in the profit zone, it can Position with black queen on b1 or on b4 cannot be won.
6. Kc8 Qf5 + The black queen cannot get to the 7th row with check . After 6. Kc7? Qh7 + 7. Kc8 Qg8 + 8. Kb7 Qf7 + 9. Ka6 Qe6 + 10. Kb7 Qd7 + would be the black queen on the key field and 11. Kb8 Kb6! threatens uncoverable mate.
7. Kb8! Qe5 +
8. Ka7! Qa1 +
9. Kb8! Qh8 +
10. Ka7! draw

literature

  • Gherman Umnov: A reciprocal Zugwang paradox. in: eg , 137, July 2000, 192-194, ISSN  0012-7671

Web links

Individual evidence

  1. ↑ Webpage of German Alexandrowitsch Umnow (Russian)
personal data
SURNAME Umnow, German Alexandrowitsch
ALTERNATIVE NAMES Umnow, Herman Alexandrovich; Умнов, Герман Александрович (Russian spelling)
BRIEF DESCRIPTION Russian chess composer
DATE OF BIRTH December 10, 1937
PLACE OF BIRTH Ivanovo
DATE OF DEATH May 26, 2016