Sicilian Defence (#2):
Example of a Checkmate Opening win for Black's Army

Checkmate in the Opening
Black Wins in 12 Moves
[Sicilian Defence (#2)]

Checkmate from the...
Sicilian Defence (#2)
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Checkmate Openings - Black Wins - Sicilian Defence 2 Checkmate Win for...

Wins in...
12 Moves

Sicilian Defence
1. e4 c5

Checkmate Sequence
1. e4 c5 2. d4 cxd4 3. c3 d5 4. exd5 Qxd5 5. Nf3 Bg4 6. Qa4+ Nc6 7. Nxd4 Bd7
8. Nb5 O-O-O 9. Nxa7+ Nxa7 10. Qxa7 Qd1+ 11. Kxd1 Bg4+ 12. Kc2 Bd1# 0-1

White's Game-Losing Mistakes

White's game-losing mistakes appear to be ...

  • 3. c3, Black's d-file Pawns are Doubled and weakened. The d4-Pawn is cramping White's development on the Queenside (notably Nb1-c3), but Bf1, backed-up by Qd1 are in place to limit the potential threat of ...d4-d3.

    3. Nf3 develops a Knight to a good square, while preparing for e4-e5, to create an Advanced Pawn, but without the Doubled Pawns weakness, which Black's d4-Pawn has.

    Alternatively, 3. Bd3 develops the light-Bishop, blocks any further advance Black's d4-Pawn, and supports the e4-Pawn, without weakening the Kingside Pawns (if Kingside Castling is intended), all while maintaining watch over the a6-f1 diagonal.

  • 4. exd5, captures a Black Pawn, but White's own Pawn isn't supported and so, not only gets captured instantly by Qd8xd5, it allows Black's Queen into the Center, where she remains until her sacrifice helps Black to win without either army having fully completed their Opening phase development.

    Perhaps 4. e5 or 4. cxd4 might have been better (though, with the latter, White is left with the weakness of an Isolated Pawn, plus lumping the Queen as baby-sitter for the Pawn now on d4).

  • 5. Nf3, invites the Bishop Pin with 5...Bg4, effectively removing the Knight's threat to Black's d4-Pawn.

    White's game appears to have become increasingly troubled since 4. exd5.

  • 7. Nxd4, forces 8. Nb5, to protect the Queen from the potential Discovered Attack on Qa4. However, White should be focused on securing his King, which is badly exposed, not yet Castled and asking for a kicking, especially in light of the position of Black's Queen. White's game seems to be hopeless from here, onwards.

Checkmate Sequence + PGN

Here's how the Sicilian Defence can lead to a Checkmate Win for Black, in the Opening phase:

[Event "Checkmate Opening - Sicilian Defence (#2)"]
[Date "2012.02.02"]
[White "?"]
[Black "?"]
[Result "0-1"]
[PlyCount "24"]

1. e4 c5 {Sicilian Defence} 2. d4 cxd4 3. c3 d5 4. exd5 Qxd5 5. Nf3 Bg4 6. Qa4+ Nc6 7. Nxd4 Bd7 8. Nb5 O-O-O 9. Nxa7+ Nxa7 10. Qxa7 Qd1+ 11. Kxd1 Bg4+ 12. Kc2 Bd1# 0-1

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