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Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6/3. Nc3/3...Bg7/4. e4/4...d6/5. f3

< Chess Opening Theory | 1. d4 | 1...Nf6 | 2. c4 | 2...g6 | 3. Nc3 | 3...Bg7 | 4. e4 | 4...d6
The latest reviewed version was checked on 5 July 2020. There is 1 pending change awaiting review.
King's Indian Defence
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black kingg8 black kingh8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black kinge7 black pawnf7 black pawng7 black bishoph7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black pawne6 black kingf6 black knightg6 black pawnh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 white pawnd4 white pawne4 white pawnf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 white knightd3 black kinge3 black kingf3 white pawng3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 black kingd2 black kinge2 black kingf2 black kingg2 white pawnh2 white pawn2
1a1 white rookb1 black kingc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR b

Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3

King's Indian Defence - Sämisch Variation

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5. f3

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5. f3 is the Sämisch Variation, a well-known and popular line in the King's Indian. With this solid move white bolsters his centre. He remains noncommittal with regards to his king, with castling both queenside or kingside possible depending on what black does. This can be a tough nut to crack for black, who usually wants white to overextend when playing the King's Indian.

However, the Sämisch does have some drawbacks for white. Most obviously, kingside development is impeded because the king's knight cannot go to its usual square, f3. Secondly, the g1-a7 diagonal is open and on a direct line to white's king, should white castle short. The Sämisch has fallen somewhat out of favour at the highest levels of chess for the more natural-looking 5. Nf3, but it's still sometimes seen in grandmaster play. At the amateur level, this variation remains perfectly viable and gives both sides good chances.

Theory table

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For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3

Sämisch Variation ...
O-O		 Be3
Nc6		 Qd2
a6		 Nge2
Rb8		 =

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References

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Wikipedia has related information at King's Indian Defence, Sämisch Variation

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