[Retros] Definition of themes in retro-wiki

[Nicolas.Dupont at math.univ-lille1.fr]

>> I just think that "a promoted piece captured by an officer"

>> is an important enough concept to deserve a special simpler name.

>

> Is the point that it's captured by an officer, or just that the

> capture does not leave an obvious trace in the pawn structure?

> For instance, if the capturer is itself later captured, does it

> make much difference if it was an officer or a pawn?


The point is that "invisible capture" is not a clear concept. One may say
that
no capture is really invisible as it can be logically deduced (in a sound
proof game).

Nicolas.