[Retros] Three SPG's from Paul Monsky

[Noam Elkies]

>> The interest here would be the combination of cross-captures

>> with other elements:



> Sure, but what elements ? that is the question !



>> in the 13.0 mover, both cross-captures are of promoted pieces;



> This is not enough, as shown in the above "minimal" game,

> composed in 2 minutes :


Well I wrote from the start that I would not be surprised to learn
that this has been shown already.  (Though it was still a good
solving puzzle, and it is a bit harder to motivate a B-promotion than
a N-promotion.)  Do you also have an example combining cross-captures
with two impostor rooks?

NDE