In 1944, the newly formed Bedford Castle Chess Club played a match against the BBC Symphony Orchestra and beat them, see below for details: 
Next up ISIS, or should I say ‘The ISIS’, an old rival. What is interesting to note from the following excerpt is that more information is provided about the mystery chess player who spent time in a concentration camp where he used bread to make his pieces and pawns according to a previous report:
Here is another account of our mystery man. (http://mccreadyandchess.com/2015/06/09/what-to-do-in-a-concentration-camp/)
The old ‘ISIS’ Chess Club, Bedford.
McCreadyandChess 