D22 Queen’s Gambit Accepted: Alekhine Defense
D22 holds three named lines, all under the name Queen’s Gambit. It leaves D21 (Queen’s Gambit Accepted: Normal Variation) with 3...a6. When the reference line ends, Black is one pawn up on material. That final move, by the a-pawn, covers b5 and opens a line for the rook on a8.
| # | White | Black |
|---|---|---|
| 1 | d4 | d5 |
| 2 | c4 | dxc4 |
| 3 | Nf3 | a6 |
Lines filed under D22
All three share their first six plies, the whole reference line.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| Queen’s Gambit Accepted: Alekhine Defense | (the shared start itself) | 6 | Black +1 |
| Queen’s Gambit Accepted: Alekhine Defense, Haberditz Variation | 4.e3 b5 | 8 | Black +1 |
| Queen’s Gambit Accepted: Alekhine Defense, Alatortsev Variation | 4.e3 Bg4 5.Bxc4 e6 6.d5 | 11 |
Queen’s Gambit Accepted: Alekhine Defense, Haberditz Variation
- 4.e3 The e-pawn advances to e3, covering d4 and f4, opening a line for the queen on d1 and the bishop on f1.
- 4...b5 The b-pawn advances two squares to b5, covering a4 and c4, opening a line for the bishop on c8.
Queen’s Gambit Accepted: Alekhine Defense, Alatortsev Variation
- 4.e3 The e-pawn advances to e3, covering d4 and f4, opening a line for the queen on d1 and the bishop on f1.
- 4...Bg4 The bishop leaves c8 for g4, opening a line for the queen on d8, attacking the knight on f3.
- 5.Bxc4 The bishop on f1 takes the pawn on c4, opening a line for the rook on h1.
- 5...e6 The e-pawn advances to e6, covering d5 and f5, opening a line for the queen on d8 and the bishop on f8.
- 6.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1.
The road to D22
- 1.d4 … 2.c4three earlier stops: A40, D00, D06
- 2...dxc4D20 Queen’s Gambit Accepted
- 3.Nf3D21 Normal Variation
- 3...a6D22
The position after 3...a6
White has brought out the knight on f3; Black has not yet moved a knight or bishop. White has a half-open c-file; Black a half-open d-file. White is to move and has 31 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| D20 | Queen’s Gambit Accepted | four squares: g1, f3, a6, a7 |
| D23 | Queen’s Gambit Accepted | four squares: a6, f6, a7, g8 |
| D02 | Queen’s Pawn Game: Zukertort Variation | five squares: c2, c4, d5, a6, a7 |
| A09 | Réti Opening | six squares: d2, c4, d4, d5, a6, a7 |
| D06 | Queen’s Gambit | six squares: g1, f3, c4, d5, a6, a7 |
| D11 | Slav Defense: Modern Line | six squares: c4, d5, a6, c6, a7, c7 |
| D24 | Queen’s Gambit Accepted: Showalter Variation | six squares: b1, c3, a6, f6, a7, g8 |
Where lines continue from here
One named line filed under other codes passes through the position after 3...a6. It belongs to D21.