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Notes by Jeremy Menadue
1.d4 d6 2.e4 Nf6 3.f3 d5 4.exd5
Considered a Blackmar-Diemer gambit a tempo up.
4.Bf4
dxe4
5.Nc3
exf3
6.Nxf3.
4.Nc3
dxe4
5.Bc4
exf3
6.Nxf3
e6
4.e5
Nfd7
may become a French.
4...Nxd5
5.c4
Nb6
6.Nc3 can transpose to a centre-counter.
4...Bf5
5.Bb5+
Nbd7
6.c4
Brand new position. 5...Qd8 has happened before
Arguably Black's most useful move of the game
8.Nge2 gets in the tempo move Bf4 but looks strange.
He plays it anyway.
9...Nc6 10.g4!? 10...Bg6 11.Ng3
Hard to tell if white's overextended or black's getting squashed.
11...h5! 12.g5 h4! 13.Nge4 Nxe4
13...Bxe4 14.fxe4 Ng4 15.c5 (5.e5? Ncxe5 16.dxe5 Qxe5 17.Ke2 Bc5 18.Nd1 Nxe3 19.Nxe3 Bxe3 20.Qxe3 Qxb2+) 15...Qd7
15.c5 Qd7 16.Bh3(=)I had no idea what I was doing!
16.Bg2
h3
17.Bxh3
Bf3
18.Bg2
Bxg2
19.Qxg2
Nxd4
Turning down the draw and castling into an attack
18...Nf3+ 19.Rxf3 Bxf3 20.Rf1 (20.c6 bxc6 21.Bf1 (21.Qd3 Kb7 ) 21...Kb7 22.Qd3 Ra8 ) 20...Bxe4!? 21.Nxe4 Qxd5 looks fine as 22.Nd6+?! Bxd6 (22...Rxd6 23.cxd6 Qxd2 24.Bxd2 Bxd6 ) 23.Qxd5 Bxh2+ 24.Kxh2 Rxd5
19...Qd6! 20.cxb7+ Kb8 21.Qd4 c5
20...cxd5 21.Be2 (21.exd5 Nxg4 22.Qe2)
21...Kb7 22.Qxg4 exd5 23.Qxd7 Rxd7 24.exd5 cxd5 25.Rad1
22.Qxa6+ Kb8 23.dxc6 Qc8 24.Qb5+ Ka7 25.Qa5+ Kb8 26.Qb5+
I didn't see that 26.Rxf7 was so strong 26...e5 (26...Bd6 27.Nb5 Bc5 28.Nxc7 or 26...Nc4 27.Qb5+ Nb6 28.Na4) Simply 27.Kh1 then Nb5 and Nxc7 or just b4 then Nb5. Not 27.Rf3 Nc4 (27...Qg4+ 28.Rg3 wins the Ne3 as 28...hxg3 29.Qb5+ Kc8 30.Qb7# ) 28.Qb5+ Nb6.
½-½