Shamir, Shaul * Haymann Jean
2014  Warsaw Solving Grand Prix 2013
4/5. Hon. Mention
 
1.Se:f2 (Sc5?) Rb8 2.Qc2 B:b4x
1.S:d6 Qg3 2.Sf7 Q:c7x




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


hx2 2 sol.   9+10   id=9