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George Duke wrote on 2016-10-18 UTCGood ★★★★

Black has nearly 100 CVs that have been looked at sparingly. He, along with his brother, have some Mutators presented into standard f.i.d.e. that are pretty challenging and logical by second reading anyway. Symmetric Unirexal Chess should be clarified further that each half-piece move is actually by the same rules as ordinary Rook, Knight, Bishop, Pawn, Queen or King. This first comment here is for interpretation of unambiguous rules-set. There is no half move, just restrictions on when a piece is half-piece, where there is initially counterpart half-piece having the same full regular move. The new emergent half-pieces would have to be marked. It appears, if all become half pieces, all 64 squares could be theoretically covered, but that may be impossible to achieve without some tweaking p-t rules of movement. That's for a study or problem, and the actual goal by Black is just a regular CV won by checkmate.

Recent topic was Symmetry or symmetric moves in CV rules, like Frolov's "Reflection Teammate," and it led to this Black CV-Mutator for having the word in title. It reminds me of another CV, drawn up by orthodox defenders Chessbase in 2014 Tandem Pawn, since there Pawns split into two pieces.


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