The pawns which form part of the castle and provide shelter to the King should never be moved indiscriminately in a game of chess. These pawns are like strong barriers which can deny entry to the opponents pieces and any advance may open up the gates leading towards his King.
In the game which follows, Black gains a big initiative when White needlessly advances one of his pawns. Black pieces virtually have no defensive barricade as they whip up an attack, targeting this weakness. Thereafter White misses another chance to stay in the game with a wrong King move.
White: Holger Dietz (2285) – Black: Alexander Bangiev (2400)
Dudweiler, 1996
Irregular Queen Pawn opening
1.d4 g6 2.c3
2. ..Bg7. Black can play 2. ..Nf6
3.Nf3 c5 4.Bf4 Qb6. Immediately targeting the b pawn
5.Qc1. He can consider 5.Qb3 also
5. ..d6 6.e3
Very cautious play by both
6. ..Nf6. If 6...Nc6 7.Nbd2
7.Bd3
If 7.Bc4 0–0 8.0–0 Bg4 9.Nbd2 Nbd7
7...0–0 8.Nbd2 Bg4
If 8...Nc6 9.0–0 And if 9.h3 cxd4 10.exd4 (10.cxd4 Nb4 11.Be2 Bf5) 10...e5 11.Nc4 Qc7;
9.h3 Bxf3 10.Nxf3 Nc6
Here 10. ..Nbd7appears better
11.0–0 Rac8 12.Bh2
White can look at 12.Qd2 with the idea 13.Qe2
12...Bh6 13.dxc5 Qxc5 14.Qd1 Bg7
Black can think about 14. ..Rfd8
15.Qe2 Nd7 16.e4. White can get his rooks into action with either16.Rad1 or 16.Rfd1
16. ..Bh6. Black could have brought his knight to the centre to exchange with 16…Nce5 17.Nxe5 Bxe5
17.Rad1 Qa5 18.Bb1
White can play 18.Bc4
18...Bg7 19.Bf4 b5 20.a3 a6 21.Ba2 Qc7 22.h4
If 22.Rfe1 Nce5 23.Nd4 Nb6
22...Nf6 23.Bh2. White can play more actively by advancing 23.e5 Nh5 24.exd6
23. ..Ng4 24.Bg3 Na5 25.Ng5
If 25.h5 Nc4 26.hxg6 hxg6 27.Ng5 Qd7
25...h5
26.f3. Weakening the Kingside! This move opens up the gates towards his King. Better appears 26.Bd5
26. .. Qb6+. Black immediately pounces on the opportunity to target the King
27.Kh1
A mistake! White should have played 27.Bf2 Nxf2 28.Rxf2 Nc4
27...Ne3. Invading devastatingly
28.Bf2 Nxf1 29.Qxf1
If 29.Bxb6 Ng3+ 30.Kh2 Nxe2 31.Bxa5 Be5+
29...Qc7 30.g4. This advance looks more in desperation, an attempt to try to attack
30. ..hxg4
If 30...Nc4 31.gxh5 gxh5 32.Qg2 Nxb2 33.Rg1 Qxc3
31.h5 Bf6
If 31...gxh5 32.Qg2 Nc4 33.Qh2
32.Nxf7 Nc4 33.hxg6 Kg7 34.Qg2 Qd7
If 34...Kxg6 35.Qxg4+ Kxf7 36.Qh5+ Kg8 37.Qg4+ Bg7 38.Qe6+ Rf7 And if 34...gxf3 35.Qxf3 Nxb2 White holds advantage in both variations
35.Bxc4 bxc4
If 35...Rxc4 36.e5 Kxg6 37.exf6 Kxf7 38.fxe7 Rh8+ 39.Kg1 Kxe7
36.e5 Kxg6 37.exf6 Kxf7 38.fxe7 Rh8+ 39.Kg1 Rcg8
A full fledged attack with the participation of all pieces
40.Bg3 Qa7+ Better appears 40. ..Rg6 41.Rd4
41.Kf1
A massive blunder! In trying to flee from the attack White misses a move which perhaps offered chances to hold on 41.Rd4
41...Qb7 42.fxg4
If 42.Kg1 gxf3 43.Rf1
42...Rh1+
0–1
Black to play and win
1. .. Rg5+ 2.Kh1 Qxf1 checkmate