C95 Ruy Lopez: Closed, Breyer
C95 holds four named lines, all under the name Ruy Lopez. It leaves C94 (Ruy Lopez: Closed, Breyer Defense) with 10.d4. At 19 plies, its reference line is the third-longest of the 40 Ruy Lopez codes. Both kings have castled by the end of the reference line, White on move 5 and Black on move 8. None of its four lines contains a capture.
| # | White | Black |
|---|---|---|
| 1 | e4 | e5 |
| 2 | Nf3 | Nc6 |
| 3 | Bb5 | a6 |
| 4 | Ba4 | Nf6 |
| 5 | O-O | Be7 |
| 6 | Re1 | b5 |
| 7 | Bb3 | d6 |
| 8 | c3 | O-O |
| 9 | h3 | Nb8 |
| 10 | d4 |
Moves only C95 plays
Same as C94 up to 9...Nb8, then:
- 10.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.
Lines filed under C95
All four share their first 19 plies, the whole reference line.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| Ruy Lopez: Closed, Breyer | (the shared start itself) | 19 | both castled |
| Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | 10...Nbd7 | 20 | both castled |
| Ruy Lopez: Closed, Breyer Defense | 10...Nbd7 11.Nh4 | 21 | both castled |
| Ruy Lopez: Closed, Breyer Defense | 10...Nbd7 11.Nbd2 Bb7 12.Bc2 c5 | 24 | both castled |
Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid
- 10...Nbd7 The knight goes from b8 to d7, opening a line for the rook on a8.
Ruy Lopez: Closed, Breyer Defense
- 10...Nbd7 The knight goes from b8 to d7, opening a line for the rook on a8.
- 11.Nh4 The knight goes from f3 to h4, opening a line for the queen on d1.
Ruy Lopez: Closed, Breyer Defense
- 10...Nbd7 The knight goes from b8 to d7, opening a line for the rook on a8.
- 11.Nbd2 The knight leaves b1 for d2, opening a line for the rook on a1.
- 11...Bb7 The bishop leaves c8 for b7, opening a line for the rook on a8 and the queen on d8, guarding the rook on a8.
- 12.Bc2 The bishop goes from b3 to c2.
- 12...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
The road to C95
The position after 10.d4
White has brought out the knight on f3 and bishop on b3; Black the knight on f6 and bishop on e7. Black could capture with Bxh3, Nxe4, exd4. Black is to move and has 29 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| C91 | Ruy Lopez: Closed, Yates Variation | four squares: h2, h3, c6, b8 |
| C92 | Ruy Lopez: Closed | four squares: d2, d4, c6, b8 |
| C97 | Ruy Lopez: Closed, Chigorin Defense | four squares: d2, d4, a5, b8 |
| C90 | Ruy Lopez: Closed | six squares: d2, h2, h3, d4, c6, b8 |
| C93 | Ruy Lopez: Closed, Smyslov Defense | six squares: d2, d4, c6, h6, h7, b8 |
| C96 | Ruy Lopez: Closed, Chigorin Defense | six squares: c2, d2, b3, d4, a5, b8 |
| C89 | Ruy Lopez: Marshall Attack | eight squares: d2, h2, h3, d4, d5, c6, d6, b8 |