Main line, ...gxf5 accept pawn sac, queen trade on h4, draw J Meister vs S Shipov, 2002 (B23) Sicilian, Closed, 19 moves, 1/2-1/2 Model 1, lucky finish to draw V Belikov vs K Kulaots, 2006 (B23) Sicilian, Closed, 49 moves, 1/2-1/2 Qg3 instead of Qh4, pawn sac regained by Nb5, rook ending Macieja vs Dominguez Perez, 2002 (B23) Sicilian, Closed, 39 moves, 1/2-1/2 ...d6 e6 Nge7, ...Nd4 exchange, OCB with more pawns R Polzin vs M Aboudi, 2012  (B23) Sicilian, Closed, 60 moves, 1-0 4 games