Nº33 Jorge Lois & Jorge Kapros

h#2 (5+4) C+
a) diagram
b) b2–>b4 c) c2–>g3

Jorge Lois & Jorge Kapros
«JT Vadim Vinokurov-60» 2013
3rd Premio
a) diagram
1.b1=B Bg5 2.Ba2 Bc1#
b) Pb2->b4
1.c1=S Sc3 2.Sa2 Sb1#
c) Pc2->g3
1.b1=R Rf1 2.Rxb3 Ra1#
Theme and comment: Three white pieces go to its original square in the chessboard (Ivanovo theme). (wBc1-wSb1-wRa1). Black under-promotions for self-block. The mating move is made by a unit of the same kind of a promoted black piece. (1.b1=B ….. Bc1# – 1.c1=S ….. Sb1# – 1.b1=R ….. Ra1#)
Model mates.