Kevin Pacey wrote on Wed, Nov 20, 2019 02:25 AM UTC:
The odd/special pawn promotion rules of Courier-Spiel kind of remind me of the odd/special pawn-of-pawns promotion rules found in another (earlier) historic variant, Tamerlane Chess:
[edit: Also note that with the Centaur and Guard pieces chosen for Courier-Spiel, in the setup, for each side, there are 3 pieces with a guard-like component (king, centaur and guard) and 3 pieces with a knight-component (besides three with a bishop component and three with a rook component, thanks to the presence of a queen), though just 2 ferfils.]
The odd/special pawn promotion rules of Courier-Spiel kind of remind me of the odd/special pawn-of-pawns promotion rules found in another (earlier) historic variant, Tamerlane Chess:
https://www.chessvariants.com/historic.dir/tamerlane.html
[edit: Also note that with the Centaur and Guard pieces chosen for Courier-Spiel, in the setup, for each side, there are 3 pieces with a guard-like component (king, centaur and guard) and 3 pieces with a knight-component (besides three with a bishop component and three with a rook component, thanks to the presence of a queen), though just 2 ferfils.]