Blancs: Rf3, Cd1, b2, b3, c2, f2, g6, h4.

Noirs: Rg8, Ce4, a5, b5, c5, d4, g7, h6.

Solution : 1) … – Cc3
                 2) bxc3 – a4
                 3) cxd4 – cxd4
                 4) c3 – a3 (Gain).