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
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Ulvestad Variation | |
---|---|
Position in Forsyth-Edwards Notation (FEN) | |
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]
- 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%
References
[edit | edit source]- Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.