Beautiful Bamberg

AM playing at a special congress to mark the 150th anniversary of the chess club in Bamberg, Upper Franconia, which is in the north of Bavaria.
Much of the town centre is a Unesco world heritage site.

Bamberg's old town hall

It is very beautiful, but unfortunately there was nothing beautiful about my performance in round one of the U1900 tournament.
I was winning for most of the game against a player with a Fide rating of 1638. Admittedly, his German rating is a more respectable 1755, but that was no reason for me to blunder a piece and, with it, the game.