Glossary
Andernach Chess is a fairy condition in which all chessmen change color (and the side) after they capture. The rule does not apply to Kings. A pawn capturing on the 8th rank is 1st promoted, and then changes color.
Clearly, this fairy condition makes inventory and balance somewhat trickier!
R2 - Caillaud, Michel Comm. Andernach TT, 1993
15+15. Shortest proof game in 3.0 moves (Andernach chess)
Solution:
1. Nf3 Nc6 2. Ne5 Nxe5(=wN) 3. Nxd7(=bN) Nb8.
There already are a few "Andernach" retros scattered along the WWW RetroCorner. Have fun: