Krivenko, Valery * Kopyl, Valery
2014  Warsaw Solving Grand Prix 2013
Commend
 
a) 1.c3 B:e6 2.Re4 R:e4x
b) 1.Sd4 Bb1 2.Bd5 f4x




black opens a black line in one phase and a white
line in another phase


hx2 b) Pd3>f2   4+5   id=16