Chess problem: 10 days ago

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Bruno's Chess Problem: 09/08/2019

B.Lindgren, 1er Pr., Giteborgs-posten, 1951

Mate in 3 (***)
chess problem diagram
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1. Kc7! d6 2. Rd8 d5 3. Rxd5#
  1... d5 2. Bxd5 ... 3. Qxe4#
     2... Kxd5 3. Rd8#
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2019-09-08 11:10:03, by problemist
Comment by John Rice in "The Problemist," November 2011, p. 229: "The post-key play is neither here not there: it's all in the try play." The tries are the promotions of wPb7, an Allumwandlung: 1. b8Q? (threat 2. Qa7) dxc6! (d5 2. cxd6); 1. b8R? d6! (d5 2. Rb2!); 1. b8B? dxe6! (dxc6 2. Bf4!); 1. b8N? d5! (d6, dxe6 2. c7, Ra7). So the unique (!) refutations are all four possible moves of bPd7, a Pickaninny: "A problem in which, at some point in the solution, a black pawn on its starting square makes each of its four possible moves (forward one square, forward two squares, capture to the left and capture to the right)." - Glossary of chess problems, wikipedia en. The unspectacular solution is 1. Kc7 d6, d5 2. Rd8, Bxd5. With the rich try play we have in fact five problems compressed into one. Comment by Michael McDowell in his review of "Makrosor" in "The Problemist," January 2018, p. 271: "A highly original three-mover in which AUW tries are defeated by pickaninny refutations. Inevitably the post-key play is banal." FIDE Album.

Bo Waldemar Lindgren (* 26.2.1927 in Liding÷, ć 4.6.2011 in Liding÷) Swedish composer and Grandmaster, see wikipedia de, it, lv, ru. "Bo Lindgren was the son of Fritjof Lindgren (also a chess composer). International Judge since 1966 and Grandmaster since 1980, he was the editor of the problem columns of Skakbladet from 1952 until 1957 and collaborated with Stella Polaris from 1966 until 1970. A collection of 197 of his best problems was published in 1978 by Walther J°rgensen, titled "Maskrosor" (Dandelions). John Rice wrote an inspiring two-part article "The Lindgren Legacy" selecting 52 of Lindgren's problems in "The Problemist," November 2011 [Today's problem is reprinted as No. 10, see the comment above.] and January 2012: a worthy homage to the Swedish GM."

Since the opening in October 2000, I had published online more than 6650 free chess problems. If you want more details, look at my chess figures pages.

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