Main lineA00
1. e3
No pawn stands on d4, e4, d5 or e5 - this line is played with the centre squares empty.
A00
Van't Kruijs Opening
5 named lines in this family, ECO A00. Every one of them opens 1. e3, so that move's note is written once, just below, instead of once per line. Under each line you get its moves and the sentences it adds that this page has not already printed. A line's own page carries up to its first 4 per-move notes in full.
The moves every line here plays
1. e3
- 1. e3 Supports the centre, adding control of d4. Theory calls this the Van't Kruijs Opening.
Bouncing Bishop VariationA00
1. e3 e5 2. Bc4 b5 3. Bb3
In the centre, Black holds e5.
- 1... e5 Stakes a claim in the centre, controlling d4, and frees the bishop and queen.
- 2. Bc4 Develops the bishop to c4, eyeing d5. It eyes f7, the one square only the king defends.
- 2... b5 Puts the question to the bishop on c4 - retreat, trade, or be taken.
Keoni-Hiva Gambit, Akahi VariationA00
1. e3 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3
An early pawn trade leaves the e-file as Black's avenue and the f-file as White's - both sides get real winning chances down their own file. Black keeps the extra pawn; White plays for time, open lines, and initiative - the classic gambit trade.
- 2. Nc3 Develops the knight to c3, eyeing d5 and e4.
- 2... Nf6 Develops the knight to f6, eyeing d5 and e4.
Keoni-Hiva Gambit, Alua VariationA00
1. e3 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3
- 2... Nc6 Develops the knight to c6, eyeing d4 and e5. It also props up the e5 pawn.
Keoni-Hiva Gambit, Ekolu VariationA00
1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3
- 2... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
Walk these lines on a board
An account opens every move's note in this family, the plan behind each line, and a trainer that plays the line back at you. It is free.