White #21 - Thursday, 19.02.2015

C42 Petrov Defense / Russische Verteidigung Russian Game: Classical Attack. Mason Variation

Simon Winawer vs. Ilya Shumov (1-0)

St Petersburg National t, 1875

5rk1/pnp1bppp/1p6/3r3n/1P2NP2/P2B3q/1B3P1P/R2Q2RK w - - 0 21