| 单词 | retractive problem |
| 释义 | > as lemmasretractive problem retractive problem n. Chess (now rare) = retractor n.1 4. ΘΚΠ society > leisure > entertainment > pastimes > game > board game > chess > [noun] > problems jeopardyc1369 problem1817 Indian problem1846 mover1868 Indian1878 retractive problem1890 waiting problem1891 retractor1893 help-mate1897 sui1897 miniature1903 waiter1906 grab theme1909 fairy chess1914 King's (or Queen's) Indian1931 1890 J. Rayner Chess Probl. 9 A retractive problem is one in which some move..has to be retracted, and then mate or sui-mate in a given number of moves. 1907 Strand Mag. Dec. 649/1 Retractive problems are not popular with the ordinary solver. < as lemmas |
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