German chess champion, after Paul Morphy (1858-1860), second unofficial world chess champion (1851-1858, 1860-1865, 1867-1871), chess publicist
Adolf Anderssen was a German chess player who was recognized as one of the world's strongest players during the mid-1800s, serving as the unofficial world champion for several periods between 1851 and 1871. He is remembered as a dominant figure in chess history who also contributed to the game through his writing and analysis.
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Karl Ernst Adolf Anderssen (6 July 1818 – 13 March 1879) was a German chess master. He won the great international tournaments of 1851 and 1862, but lost matches to Paul Morphy in 1858, and to Wilhelm Steinitz in 1866. Accordingly, he is generally regarded as having been the world's leading chess player from 1851 to 1858, and leading active player from 1862 to 1866, although the title of World Chess Champion did not yet exist.
Anderssen became the most successful tournament player in Europe, winning over half the events he entered, including the very strong Baden-Baden 1870 chess tournament. He achieved most of these successes when he was over the age of 50.
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