A27 English Opening: King’s English Variation, Three Knights System
A27 holds a single named line. It leaves A25 (English Opening: King’s English Variation, Reversed Closed Sicilian) with 3.Nf3. Black, to move in that position, has 32 legal moves, the fifth-highest count of the 29 English Opening codes. That final move, by the knight, opens a line for the rook on h1.
| # | White | Black |
|---|---|---|
| 1 | c4 | e5 |
| 2 | Nc3 | Nc6 |
| 3 | Nf3 |
The road to A27
- 1.c4 … 1...e5two earlier stops: A10, A20
- 2.Nc3A21 Reversed Sicilian
- 2...Nc6A25 Reversed Closed Sicilian
- 3.Nf3A27
The position after 3.Nf3
White has brought out the knight on c3 and knight on f3; Black the knight on c6.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| A28 | English Opening: King’s English Variation, Four Knights Variation | two squares: f6, g8 |
| A21 | English Opening: King’s English Variation, Reversed Sicilian | four squares: g1, f3, c6, b8 |
| A29 | English Opening: King’s English Variation, Four Knights Variation, Fianchetto Line | four squares: g2, g3, f6, g8 |
| C46 | Three Knights Opening | four squares: c2, e2, c4, e4 |
| A20 | English Opening: King’s English Variation | six squares: b1, g1, c3, f3, c6, b8 |
| A22 | English Opening: King’s English Variation, Two Knights Variation | six squares: g1, f3, c6, f6, b8, g8 |
| A35 | English Opening: Symmetrical Variation, Two Knights Variation | six squares: g1, f3, c5, e5, c7, e7 |