Summerscale-Mannion
4NCL Slough I v Poisoned Pawns
Notes by GM John Emms

1 d4 Nf6 2 Nf3 c5 3 d5 3 ..b5 4 Bg5 Ne4
This move has seen a revival recently, owing to the successes of the Bulgarian GM Veselin Topalov.
5 Bh4
White's other main try here is the retreat 5 Bf4, for example 5 ..Bb7 6 Qd3 f5!? 7 Nbd2 c4 8 Qd4 Na6!? 9 c3 (9 Nxe4 fxe4 10 Qxe4 Nb4!?) 9 ..Nac5 10 Nxe4 Nxe4 11 g4 e6 12 gxf5 Bxd5 13 Bh3 Qf6 14 Qxf6 gxf6 15 fxe6 dxe6 and Black was fine in the game Mittelman-Avrukh, Israeli League 2000.
5...Bb7
5 ..Qa5+ 6 Nbd2 Bb7 7 a4 Bxd5 8 axb5 Qc7 9 Ra4! is good for White, Kasparov-Miles, Basel 1986.
6 a4
This looks like a natural way to exploit Black's ...b7-b5 lunge.
6...b4
This doesn't work out too well here; in particular, Black doesn't have tricks involving hitting White's queen on d3 with ...c5-c4. Perhaps Black should look at the alternative 6 ..a6 , although after 7 Qd3 Qa5+ 8 c3 f5 9 Nbd2 e6 10 Nxe4 fxe4 11 Qxe4 Bxd5 12 Qf4 Nc6 13 e4 Bb3 14 Be2 bxa4 15 0-0 Be7 16 Bxe7 Nxe7 17 Ne5 Rf8 18 Qg3 g6 19 Bc4 White had good compensation for the pawn in Burmakin-Avrukh, Ubeda 2001.
7 Qd3 7 ..f5 8 Nbd2 Ba6 9 Qb3 Nxd2 10 Nxd2 Qc7
10 ..g6 11 e4 Bxf1 12 Kxf1 also looks promising for White, for example 12 ..Bh6 13 Nc4 g5 14 Qf3 0-0 15 Qh5 and Black's in some trouble.
11 e4 Bxf1 12 Kxf1 f4 13 Nc4
Black's situation doesn't look too healthy – his only developed piece is the queen and the prospects don't look too good for the rest of his pieces! His knight only has the a6 square at the moment and the bishop cannot move at all. Meanwhile, White's knight has found a very nice outpost on c4. Already White has a winning position.
13...e5 14 Qh3 Bd6 15 Qf5
Simply preventing Black from castling. The rest is gruesome viewing for Black.
15 ..a5 16 g3
Forcing Black to open up lines for the h1-rook.
16...fxg3 17 hxg3 Ra6 18 Bg5 h6 19 Qg6+ Kf8 20 Rh5
Black can hardly move a piece.
20...Kg8 21 Qe8+ Bf8 22 Nxe5 Kh7 23 Bf4 Qb6 24 Qf7 Qb7 25 Bxh6 1-0