Chess Opening Theory/1. d4/1...d5/2. Kd2

=Queen's Bongcloud=

2. Kd2??
2. Kd2? is thought to be the worst following move to 1. d4 d5 with the exception of 2. Bh6?? The problems with 2. Kd2? are that the King move prevents castling to protect the King, endangers the King, and ignores development. Unlike the normal Bongcloud Attack, this move has no redeeming qualities or potential whatsoever and is an obvious error.