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Chess Opening Theory/1. e4/1...c5/2. Nf3/2...b6

< Chess Opening Theory | 1. e4 | 1...c5 | 2. Nf3
The latest reviewed version was checked on 5 March 2021. There are 2 pending changes awaiting review.
Sicilian - Katalimov variation


a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black knighth8 black rook8
7a7 black pawnb7 black kingc7 black kingd7 black pawne7 black pawnf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black pawnc6 black kingd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black pawnd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 black kinge4 white pawnf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 white knightg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 white pawne2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1 white bishopg1 black kingh1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/p2ppppp/1p6/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w

Moves: 1. e4 c5 2. Nf3 b6

Sicilian - Katalimov variation

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2...b6

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This fianchetto of the Queen's Bishop leaves Black with many weak white colored squares on the Queenside where allowing a possible Bb5 or Nb5, while it does nothing to develop on the Kingside. White's best move is 3. d4 and sets a trap if Black plays 7...d6??, White can win a queen with 8. Bb5+! (see diagram below).

Position after 8. Bb5+!


a b c d e f g h
8        8
7        7
6        6
5        5
4        4
3        3
2        2
1        1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

r2qkbnr/pb2pppp/1p1p4/1B6/3BP3/2N5/PPP2PPP/R2QK2R w

Moves: 1. e4 c5 2. Nf3 b6 3. d4 cxd4 4. Nxd4 Bb7 5. Nc3 Nc6 6. Be3 Nxd4 7. Bxd4 d6 8. Bb5+

Theory table

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For explanation of notation, see Chess Opening Theory Table.

1.e4 c5 2.Nf3 b6

3 4 5
d4
cxd4		 Nxd4
Bb7		 Nc3
d6		 +=
...
Bb7		 d5 +=
g3
Bb7		 Qe2
Qc7		 Bg2
Nc6		 0-0
Nd4?!		 +=

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References

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Wikipedia has related information at Sicilian Defence


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