Chess Opening Theory/1. h4/1...d5

Kadas Opening
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. h4 d5
ECO code: A00

Kadas Opening edit

1...d5 edit

Black takes the center and opens the diagonal for the light-squared bishop, preventing White's kingside rook from coming out with 2. Rh3??, to which Black will respond with Bxh3. White may try to rectify this with 3. h5?!, but this allows Black to take the full center with 3... e5! not allowing the rook to come to h4 either.

Responses edit

White may respond to the move d5 with:

  • 2. h5, allowing Black to take the full center with 2...e5,
  • 2. d4, which is more principled, and White will always play d4 in this opening so why not?
  • or 2. Nf3, controlling the center with a knight and either going into a King's Indian-like defense, playing classically, or just transposing into the d4 line.
1. h4 d5
2 3 4 5 6
Croon's Gambit Accepted:

Risky Variation

h5?!

e5

h6?!
gxh6?!
d4
e4?!
Bf4
Nc6
e3
Bf5?!
±
Croon's Gambit Accepted:

Knight's Acception

...
...
...
Nxh6
d4
e4?!
Bxh6

gxh6

e3

Nc6?!

±
Croon's Gambit Accepted:

Knight's Acception

...
...
...
...
...
...
...
...
...

Bg7

=
Croon's Gambit Declined:

Thorn Defense

...

...

...

g6

e5

d4

e4

Bf4?!

Bd6

Bxd6

=
Kadas Opening:

King's Indian Variation

Nf3

Nc6

d4

Nf6

g3

Bg4

Bg2

e6

O-O

Bd6

=
Kadas Opening:

Center Variation

d4

Nc6?!

h5?!

h6

Nf3

Nf6

Nc3

Bg4

Bf4

e6

=
Transposition to

Center Variation

Nf3

Nc6

d4

Nf6

h5?!

h6

-

-

-

-

=