Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...b5/6. Bf1

From Wikibooks, open books for an open world
< Chess Opening Theory‎ | 1. e4‎ | 1...e5‎ | 2. Nf3‎ | 2...Nc6‎ | 3. Bc4‎ | 3...Nf6‎ | 4. Ng5‎ | 4...d5‎ | 5. exd5‎ | 5...b5
Jump to navigation Jump to search
Ulvestad Variation
a b c d e f g h
8a8 black rookb8 black kingc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black pawnb7 black kingc7 black pawnd7 black kinge7 black kingf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black knightd6 black kinge6 black kingf6 black knightg6 black kingh6 black king6
5a5 black kingb5 black pawnc5 black kingd5 white pawne5 black pawnf5 black kingg5 white knighth5 black king5
4a4 black kingb4 black kingc4 black kingd4 black kinge4 black kingf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 black kingg3 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)

r1bqkb1r/p1p2ppp/2n2n2/1p1Pp1N1/8/8/PPPP1PPP/RNBQKB1R b

Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bf1

Ulvestad Variation

[edit | edit source]

6 Bf1! A strange looking move, undeveloping the Bishop, however White wisely retreats the Bishop as tactics advantage still remain on b5.

Theory table

[edit | edit source]

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

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5 6.Bf1
6 7 8 9 10
Bf1
h6		 Nxf7
Kxf7		 dxc6
Bc5		 Be2
Rf8		 +=
...
...		 Nf3
Qxd5		 Nc3
Qe6		 Bxb5
Bb7		 O-O +=
Fritz variation
by transposition		 ...
Nd4		 c3
Nxd5		 ∞
...
Qxd5		 Nc3
Qc5		 Bxb5
Be7		 Qf3
Bd7		 O-O
O-O		 +=
...
Nxd5		 Bxb5
Bb7		 Qf3
Qxg5		 Qxd5
Qf6		 Nc3
 +=
...
Bg4		 f3
Nxd5		 Nxf7
Kxf7		 fxg4
Nf4		 c3 +=

Estimated next move likelihood

[edit | edit source]

h6 40%, Nd4 40%, Qxd5 15%, Nxd5 4%

When contributing to this Wikibook, please follow the Conventions for organization.

References

[edit | edit source]
  • Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.

Wikipedia has related information at Two Knights Defence

Retrieved from "https://en.wikibooks.org/w/index.php?title=Chess_Opening_Theory/1._e4/1...e5/2._Nf3/2...Nc6/3._Bc4/3...Nf6/4._Ng5/4...d5/5._exd5/5...b5/6._Bf1&oldid=3230085"