Schönholzer, Andreas
2014  Warsaw Solving Grand Prix 2013
Commend
 
1.Bc2 B:b4 2.Rf2 Bc3x
1.Sc4 Be7 2.Sg2 Sf3x




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


hx2 2 sol.   6+12   id=13