Stockfish
PGN
| Event | British Columbia op |
| Site | Richmond CAN |
| Date | 2011.08.01 |
| Round | 5 |
| White | Doknjas, John |
| Black | Patterson, Roger |
| Result | 1-0 |
| WhiteElo | 1931 |
| BlackElo | 2141 |
| ECO | A81 |
| Opening | Dutch Defense: Semi-Leningrad Variation |
| PlyCount | 87 |
Moves
1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.b3 d6 7.Bb2 c6 8.c4 Na6 9.Nc3 Bd7 10.d5 Nc7 11.Nd4 Qe8 12.dxc6 bxc6 13.Rb1 Rc8 14.e4 Ne6 15.Nxe6 Bxe6 16.Qe2 fxe4 17.Nxe4 Nxe4 18.Bxg7 Kxg7 19.Bxe4 Bf5 20.Rfe1 Rc7 21.Qb2+ Kg8 22.Bxf5 Rxf5 23.Re6 Qf7 24.Rbe1 Rf6 25.Rxf6 Qxf6 26.Qxf6 exf6 27.Re6 Rd7 28.Rxf6 Kg7 29.Rf3 d5 30.cxd5 cxd5 31.Kf1 Rc7 32.Ke1 Rc2 33.a4 h5 34.Rd3 Rb2 35.Rxd5 Rxb3 36.Rd7+ Kf6 37.Rxa7 Ra3 38.a5 Ra2 39.a6 h4 40.gxh4 Ra4 41.Ra8 Kg7 42.a7 Ra2 43.f4 Kh7 44.h5 1-0
