MESON Chess Problem Database
Decades League
| DECADE | NUMBER |
|---|---|
| 0000-0009 | 5,847 |
| 1200-1209 | 1 |
| 1280-1289 | 1 |
| 1300-1309 | 6 |
| 1350-1359 | 6 |
| 1490-1499 | 8 |
| 1510-1519 | 1 |
| 1600-1609 | 6 |
| 1730-1739 | 8 |
| 1740-1749 | 1 |
| 1750-1759 | 3 |
| 1760-1769 | 13 |
| 1780-1789 | 1 |
| 1800-1809 | 21 |
| 1810-1819 | 11 |
| 1820-1829 | 28 |
| 1830-1839 | 61 |
| 1840-1849 | 936 |
| 1850-1859 | 2,197 |
| 1860-1869 | 3,073 |
| 1870-1879 | 6,982 |
| 1880-1889 | 7,959 |
| 1890-1899 | 7,296 |
| 1900-1909 | 11,438 |
| 1910-1919 | 17,143 |
| 1920-1929 | 21,584 |
| 1930-1939 | 18,525 |
| 1940-1949 | 14,844 |
| 1950-1959 | 18,427 |
| 1960-1969 | 15,785 |
| 1970-1979 | 18,069 |
| 1980-1989 | 20,299 |
| 1990-1999 | 23,020 |
| 2000-2009 | 20,300 |
| 2010-2019 | 14,780 |
| 2020-2029 | 5,951 |
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).