# Chess Opening Theory/1. d4/1...f5/2. c4/2...g6/3. Nc3/3...Nh6/4. e4

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# Bladel Open Variations

Bladel Open
 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)
Moves: 1. d4 f5, 2. c4 g6 3. Nc3 Nh6 4.e4
ECO code: A84
Parent: Bladel

## 2.c4 g6, 3.Nc3 Nh6, 4.e4 - Dutch Defence, Bladel Variation Open

The move e4 changes the character of this opening entirely. The move e4 transposes from a a semi closed game to an open game. The whole point of the Dutch Defence is to gain control over the e4 square. The idea is to prevent white from playing e4. Typically, black is going to fallow it up with Nf6 and gain even more control over the e4 square. But now white plays e4 anyway. The e-pawn has now support from the knight on c3.

Black has different responses to choose from.

• for the open variations without entering modern variations with 4...d6 5.Nf3 Bg7 6.exf5 Bxf5
• ... or 4...d6 5.Nf3 Bg7 6.exf5 Nxf5
• ... or 4...d6 5.Nf3 Bg7 6.exf5 gxf5
• for entering the modern variations 4...fxe4 5.Nxe4 Bg7 6.Nf3 c6 7.Bd3 d5

Black must not play d5 right away. The move d5 will be met with exd4. Black is going to loose control over the center. As a result of that, black's king side will fall apart. Therefore black should play the bladel, especially the open variations, in hyper modern fashion. Instead of pushing blindly into the center, black seeks to control the center from the outside with the minor pieces. The bishop needs to go to the g7 square as soon as possiple to gain some control towards the center. If black wants to fight the center with d5, it needs to prepared with c6 before hand.

## Theory table

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

1. d4 f5 2.c4 g6 3.Nc3 Nh6 4.e4

4 5 6 7 8 9 10 11 12
Bladel open variations ..
d6
Nf3
Bg7
exf5
Bxf5

+/=
..
d6
Nf3
Bg7
exf5
Nxf5

+/=
..
d6
Nf3
Bg7
exf5
gxf5

+/=
Bladel modern variations ..
fxe4
Nxe4
Bg7
Nf3
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
c5
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
d5
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
Ng5
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
Bxh6
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bxh6
Bxh6

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Nc3
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bb5+
Nc6
Bxh6
Bxh6

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bb5+
Nc6
Bxh6
Bxh6

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bb5+
Nc6
Nd2
...

+/=
..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bb5+
Nc6
Nc3
...

+/=
Bladel Main Line ..
fxe4
Nxe4
Bg7
Nf3
c6
Bd3
d5
cxd5
cxd5
Bb5+
Nc6
Bxc6+
bxc6
Nc5
...
+/-

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## References

• Lichess Studies, Dutch Defence, Bladel Family
• Chess.com, Library: Bladel Modern Variations
• Gamenot.com, annotated games: Dutch Defence Bladel Open
• Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.