Unbeatable Tic-Tac-Toe

New Game
Make Your Move
Select X Select
Select O X
Select Select O

Warning: DOMDocument::load(): Specification mandates value for attribute id in /usr/local/www/apache24/data/tictactoe/games.xml, line: 23327 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): attributes construct error in /usr/local/www/apache24/data/tictactoe/games.xml, line: 23327 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Couldn't find end of Start Tag game line 23327 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 23327 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Warning: DOMDocument::load(): Premature end of data in tag tictactoe line 2 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 23327 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Fatal error: Uncaught Error: Call to a member function getElementsByTagName() on null in /usr/local/www/apache24/data/tictactoe/index.php:38 Stack trace: #0 /usr/local/www/apache24/data/tictactoe/index.php(113): update_element('t6867', 'moves', '_X__OX__O') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('_X__OX__O', 't6867') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38