Problème d'il y a 10 jours

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Bruno's Chess Problem: 02/12/2017

K.Mlynka, 3rd Pr., Pravda, 1968

Mat en 3(****)
chess problem diagram
Les blancs jouent

Astuce :

niveau : * (très facile) à ***** (très difficile)

Cacher la solution
1. Kc1! ... 2. Rb4+ ... 3. Ra4#
  1... Qxc4 2. Rb4+ Kxa3 3. Nxc4#
  1... Qa5, Qb5 2. Rb5+ Kxa3 3. Ra5#
  1... Qxa3+ 2. Rb2+ Qb3 3. Rxa2#
  1... Qa7 2. Rb7+ Kxa3 3. Rxa7#
  1... a1=Q/R+ 2. Rb1+ Kxa3 3. Rxa1#
Cacher les commentaire

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2017-12-02 08:49:41, by problemist
Shown is battery play including cross-checks by the white RB-battery. The spectacular key exposes the wK to a check by a promoted bQ which is answered by 2. Rb1+ Kxa3 3. RxQ#. The threat is the double check on b4 followed by 3. Ra4#. If the bQ defends we have 1.. Qxa3+ 2. Rb2+ Qb3 3. Ra2# and 1.. Qa5, Qa7, Qb5 2. Rb5+, Rb7+, RxQ+. On 1.. Qxc4 there is a minor dual as both 2. Rb4+ Kxa3 3. NxQ# and the quiet 2. NxQ work, e.g., 2.. a1Q+ 3. Rb1#. Not that hard. Bruno generally rates deliberate exposure to black checks (too) high. Maybe in view of an otb-player.

Karol Mlynka (*11.8.1944 in Kozárovce) Slovak composer and FIDE Master. "Karol Mlynka is a twomover and fairy composer. Juraj Lörinc summed it up on his website: Teacher of Slovak and German languages. Known Slovak composer, he composes since 1961, inventor of Mlynka theme (cyclic change of defence motives of 3 defences in 2 phases) as well as many other original themes from the field of so called Slovak school. International judge FIDE since 1987 and FIDE master since 1990. In recent time he works well in Pat a Mat redaction, where he is editor for #3. - Karol Mlynka also invented the Supertransmuting King and has already composed many problems with this fairy piece. The definitions and some examples can be found also on Juraj Lörinc's website. Karol Mlynka's book "100 selected chess compositions" can be downloaded from selivanov.ru." [Today's problem is listed as No. 53 in the book "409 Selected Chess Compositions of Karol Mlynka" by Gabriel Török (available online).]

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