Problème d'il y a 8 jours
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Bruno's Chess Problem: 20/03/2024
O.Wurzburg, British Chess Magazine, 1896
Mat en 3(***)
Les blancs jouentAstuce :
La solution du problème de mat du jour est disponible à partir du lendemain.
1. Bh3! ... 2. Qg4 ... 3. Qc8#
1... Kc7 2. Qg4 ... 3. Qc8#
2... Kd8 3. Qd7#
1... a5 2. Qa6+ ... 3. Qc8#
2... Kxa6 3. Bc8#
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- 2024-03-20 14:07:32, by problemist
- The problem was posed in the 2nd Category of the 5th ISC (International Solving Contest) 2009. Statistics: There were 20 correct, 6 partial, 84 wrong and 31 missing solution. Wrong keys 1. Qe4? 5x, Qe5? 11x, Qh5? 16x, Kd6 42x and missing variation 1.. a5 4x. So this problem is reasonable hard (4 stars) if you did not see it before (what is most likely).
- 2024-03-20 10:20:13, by problemist
- "A theorist goes astray in two ways:
1. The devil leads him by the nose with a false hypothesis. (For this he deserves our pity.)
2. His arguments are erroneous and sloppy. (For this he deserves a beating.)"
Albert Einstein (1879-1955) To H. A. Lorentz, February 3, 1915. CPAE, Vol. 8, Doc. 52
Meredith with 8 pieces. A famous problem with many reprints, see yacpdb. The key is the Turton 1. Bh3 with the threat 2. Qg4 3. Qc8#, Qd7#. The only defense is 1.. a5 2. Qg4? a6! 3. Qc8+ Ka7 when, using the remote self-block on a5, the pointed Q-sacrifice 2. Qa6+! follows 2.. KxQ (K~ 3. Qc8#) 3. Bc8#. There is also an often reprinted miniature version without bPg5 when on 1.. Ka8, Kb8 also the dual 2. Qxa6!? works, in the present version this fails to 2.. g4! Grasemann in "Schach ohne Partner" (1977), Nr. 9, prefers the version with bPg5 ("leider oft ohne den Bg5 abgedruckt") and Speckmann argues for the miniature without bPg5 in "Perlen der Schachkomposition" (1985), p. 224 ("für die Lösung überflüssig", "seine Aufstellung verstieß gegen das Gebot der Ökonomie"). He does not consider the dual but claims the composer only wanted to hide the key by introducing bPg5 ("die Absicht des Autors, den Schlüsselzug durch ihn noch unwahrscheinlicher zu machen") and he argues that this is not the case.
Otto B. Wurzburg (* 10.7.1875 in Grand Rapids, † 19.10.1951 in Grand Rapids) American composer, see wikipedia de, fr, it, ru. "Otto Wurzburg was the nephew of W. A. Shinkman. He composed more than 1200 problems in 3 or more moves. He gave his name to a form of the Plachutta theme, the Wurzburg-Plachutta, whose definition was explained by Emmanuel Manolas on his blog. Edgar Holladay compiled 200 of his problems in "Wurzburg Artistry" (1974) and Valery Surkov proposed many of his problems with their solutions on his website."
See also the article on the composer "Otto Wurzburg 50 years on," by Edgar Holladay and Colin Russ in "The Problemist," January 2002, pp. 272-274 (available online). It presents 16 eminent compositions of Wurzburg's (including the miniature version of today's problem) and starts with a brief biographical sketch: "Otto Wurzburg was born on 10th July 1875 in Grand Rapids, Michigan, where he was to work for many years in the town's Post Office Department. He was taught chess by his uncle, William A. Shinkman (1847-1933), an immigrant from central Europe and himself a major composer (the "Wizard of Grand Rapids"). In due course they collaborated in some memorable work [...]. 'The Golden Argosy,' the great Shinkman collection published in A. C. White's Christmas Series in 1929, has Wurzburg as co-editor (with White and George Hume) and the author of the introduction. Wurzburg died on 19th October 1951, during a family card game."
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