"Pawns on the 2nd or 8th rank can promote to:
-RNN on file a or i
- ...
This description somewhat loses the fact that a pawn that starts on b1, for example, can become either RNN or ZZCC or NN on rank 2. I think this choice should be included in the description.
More dynamics, faster interactions.
This description somewhat loses the fact that a pawn that starts on b1, for example, can become either RNN or ZZCC or NN on rank 2. I think this choice should be included in the description.