[Event "Ch France (accession)"] [Site "masterchessopen.com - Chambery (France)"] [Round "4"] [White "Mallet Lionel (FRA)"] [Black "Derieux Christian (FRA)"] [Result "0-1"] [WhiteElo "2037"] [BlackElo "2025"] [ECO "A65"] [Opening "Benoni: 6.e4"] 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.Nd2 Re8 10.O-O Nbd7 11.f4 c4 12.Kh1 Nc5 13.e5 dxe5 14.fxe5 Rxe5 15.Nxc4 Re8 16.Bg5 h6 17.Bh4 g5 18.Be1 b6 19.b4 Nce4 20.d6 Bb7 21.Rc1 Qd7 22.a4 Rad8 23.Nb5 Bc6 24.Bc3 Ng3+ 25.Kg1 Nxe2+ 26.Kh1 Ng3+ 27.Kg1 Ne2+ 28.Kh1 Bxg2+ 29.Kxg2 Qg4+ 30.Kh1 Qe4+ {#R} 0-1