Luis Miguel Martín (Spain)
Original Problems, Julia’s Fairies – 2013 (II): May – August
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No.314 by Luis Miguel Martín – A nice “marine pins” after promotions into TR and NE! (JV)
Triton (TR): A piece that plays as a Rook but captures only as a Locust.
Nereid (NE): A piece that plays as a Bishop but captures only as a Locust.
Locust (L): moves on Q-lines but only by capturing an enemy unit, arriving on the square immediately beyond that unit, which must be vacant.
No.314 Luis Miguel Martín
h#2 2 solutions (5+4)
Solutions: (click to show/hide)
I. 1.d1=TR (d1=R+?) TRh4+ 2.TRd4 NEc6# (3.TRd5??)
II. 1.d1=NE (d1=B?) NEc6+ 2.NEf3 TRh4# (3.NEg4??)
Marine promotions with orthodox pawn. Specific pin model mates. Diagonal-orthogonal play. (Author)