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Die Schwalbe is the German chess composition society and issues the bimonthly magazine ''Die Schwalbe''. == Society == ''Die Schwalbe'' was founded on 10 February 1924 in Essen as ''Vereinigung von Problemfreunden zur Förderung der Aufgabenkunst'' (Society of problem friends for advancement of chess composition art). There had been 15 foundation fathers from the Ruhr Area lead-managed by Dr. Wilhelm Maßmann. Anton Trilling was their first president. In 1972 ''Die Schwalbe'' became a member of ''Deutscher Schachbund'' (German chess union) initiated by Gerhard Wolfgang Jensch. Johannes Hinsken from Bottrop proposed the name of the society. The name traces back to a famous four-mover entitled ''Eine Schwalbe'' composed by Johannes Kohtz (1843–1918) and Carl Kockelkorn (1843–1914): The solution exclusively consists of moves by the white queen, that draws their circles like a swallow (Schwalbe). 1.Qa7? (threatens Qa1#) is refuted by Ra4!, and 1.Qh7? (threatens Qb1#) is refuted by Re4! 1.Qf7! (threatens 2.Nd3+ Kd1 3.Qb3#) Bd5 2.Qa7 (threatens Qa1#) Ra4 3.Qh7 Re4 / Be4 ) 4.Qh1 mate / Qh4 mate This is also a good example of a Grimshaw: In the third move the black rook and the black bishop mutually obstruct in the point of intersection e4. This is outstanding aesthetically, because in the preceding moves both pieces only have been directed back ''critically'' over e4 (the bishop in the first, the rook in the second move). Only after that can white exploit the point of intersection e4 during the third move. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Die Schwalbe」の詳細全文を読む スポンサード リンク
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