Mathematician cracks 150-year-old chess problem
The n-queens problem had stumped mathematicians for more than a century.
Severity: 8192
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Filename: database/DB_driver.php
Line Number: 371
Backtrace:
File: /home2/seasidecambodia/public_html/application/config/config.php
Line: 338
Function: DB
File: /home2/seasidecambodia/public_html/index.php
Line: 325
Function: require_once
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