Three special Christmas problems! Discuss Three special Christmas problems! http://kobulchess.com/en/news/7-2011-07-31-17-09-09/421-christmas-puzzles-2013.html Fri, 09 Oct 2026 13:44:31 +0000 JComments Diyan Kostadinov says: http://kobulchess.com/en/news/7-2011-07-31-17-09-09/421-christmas-puzzles-2013.html#comment-792 Diyan Kostadinov Mon, 23 Dec 2013 23:34:22 +0000 http://kobulchess.com/en/news/7-2011-07-31-17-09-09/421-christmas-puzzles-2013.html#comment-792