C79 Ruy Lopez: Morphy Defense, Steinitz Deferred
C79 holds four named lines, all under the name Ruy Lopez. It leaves C78 (Ruy Lopez: Morphy Defense) with 5...d6. That final move, by the d-pawn, covers c5 and e5 and opens a line for the bishop on c8 and the queen on d8. Of all other reference positions, the board of C72 (Morphy Defense, Modern Steinitz Defense) comes closest, two squares apart.
| # | White | Black |
|---|---|---|
| 1 | e4 | e5 |
| 2 | Nf3 | Nc6 |
| 3 | Bb5 | a6 |
| 4 | Ba4 | Nf6 |
| 5 | O-O | d6 |
Lines filed under C79
All four share their first ten plies, the whole reference line.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| Ruy Lopez: Morphy Defense, Steinitz Deferred | (the shared start itself) | 10 | White castled |
| Ruy Lopez: Morphy Defense, Steinitz Deferred | 6.Bxc6+ bxc6 7.d4 Nxe4 | 14 | Black +1, White castled |
| Ruy Lopez: Steinitz Defense Deferred, Lipnitsky Variation | 6.Bxc6+ bxc6 7.d4 Bg4 | 14 | White castled |
| Ruy Lopez: Steinitz Defense Deferred, Boleslavsky Variation | 6.Bxc6+ bxc6 7.d4 Nxe4 8.Re1 f5 9.dxe5 d5 10.Nc3 | 19 | White castled |
Ruy Lopez: Morphy Defense, Steinitz Deferred
- 6.Bxc6+ The bishop on a4 takes the knight on c6, guarding the pawn on e4, giving check.
- 6...bxc6 The b-pawn takes the bishop on c6, covering b5 and d5, opening a line for the bishop on c8.
- 7.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
- 7...Nxe4 The knight on f6 takes the pawn on e4, opening a line for the queen on d8.
Ruy Lopez: Steinitz Defense Deferred, Lipnitsky Variation
- 6.Bxc6+ The bishop on a4 takes the knight on c6, guarding the pawn on e4, giving check.
- 6...bxc6 The b-pawn takes the bishop on c6, covering b5 and d5, opening a line for the bishop on c8.
- 7.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
- 7...Bg4 The bishop leaves c8 for g4, opening a line for the rook on a8 and the queen on d8, attacking the knight on f3.
Ruy Lopez: Steinitz Defense Deferred, Boleslavsky Variation
- 6.Bxc6+ The bishop on a4 takes the knight on c6, guarding the pawn on e4, giving check.
- 6...bxc6 The b-pawn takes the bishop on c6, covering b5 and d5, opening a line for the bishop on c8.
- 7.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
- 7...Nxe4 The knight on f6 takes the pawn on e4, opening a line for the queen on d8.
- 8.Re1 The rook goes from f1 to e1, attacking the knight on e4.
The road to C79
- 1.e4 … 3.Bb5five earlier stops: B00, C20, C40, C44, C60
- 3...a6C70 Morphy Defense
- 5.O-OC78 Morphy Defense
- 5...d6C79
The position after 5...d6
White has brought out the knight on f3 and bishop on a4; Black the knight on c6 and knight on f6. White could capture with Bxc6+, Nxe5. White is to move and has 25 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| C66 | Ruy Lopez: Berlin Defense, Improved Steinitz Defense | four squares: a4, b5, a6, a7 |
| C80 | Ruy Lopez: Open | four squares: e4, d6, f6, d7 |
| C84 | Ruy Lopez: Closed | four squares: d6, d7, e7, f8 |
| C87 | Ruy Lopez: Closed, Averbakh Variation | four squares: e1, f1, e7, f8 |
| C69 | Ruy Lopez: Exchange Variation, Normal Variation | five squares: a4, c6, d6, f6, g8 |
| C71 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | six squares: e1, f1, g1, h1, f6, g8 |
| C85 | Ruy Lopez: Closed, Delayed Exchange | six squares: a4, c6, d6, d7, e7, f8 |