Players who enjoy this system often also study the French Defense and the Caro-Kann Defense to round out their repertoire.
The Strategic Idea
The Deferred Steinitz is 4…d6. After 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4, Black plays d6 instead of the normal 4…Nf6. Black is saying: I don’t want your main lines. I want a slower game.
White’s answer is 5.c3 — just like in the normal Ruy Lopez. White prepares d4 and fights for the center. After 5…Bd7 6.d4 Nge7, Black has a solid but cramped position. White has more space and a clear plan.
The key thing here: Black’s position is passive. The knight on e7 is awkward. The d6 pawn blocks the bishop. White should press with d4 and build toward a kingside attack or central break.
Watch out for the Siesta: 5…f5
The tricky try is 5…f5 — the Siesta Variation. Black wants to counterattack in the center immediately.
White answers 6.exf5! — taking the pawn right away. After 6…Bxf5 7.O-O Nf6 8.d4, White has a strong center. Black gets some activity with the bishop on f5 but White’s center is healthy and the position is good.
Who Plays the Ruy Lopez Deferred Steinitz?
Ruy López de Segura, the 16th-century Spanish priest, first analyzed this system, giving it his name.
Garry Kasparov used the Ruy Lopez as his main weapon throughout his career, particularly in World Championship matches against Karpov.
Magnus Carlsen regularly employs the Ruy Lopez and its various sublines, valuing its long-term strategic complexity.
The Ruy Lopez Deferred Steinitz has been the cornerstone of 1.e4 e5 theory for over 150 years. Every world champion has had an opinion on this system — most have used it at the board.
Main Variations
The Deferred Steinitz has a few different setups for Black. Know them all:
Main Line — 5.c3 Bd7 6.d4 Nge7 7.Bb3
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7 7.Bb3 h6 8.Nbd2 Ng6 9.Nf1
Black develops with Bd7 and Nge7. White plays Bb3 to keep the bishop active and follows with Nbd2 and Nf1. The plan is to maneuver the f1 knight to g3 and build pressure on the center. Black has a solid but passive position.
Siesta Variation — 5.c3 f5 6.exf5!
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5 6.exf5 Bxf5 7.O-O Nf6 8.d4 e4 9.Ng5
Black plays the Siesta Variation: 5...f5 to attack White's center. White responds with 6.exf5! — taking the pawn immediately. After Bxf5 7.O-O Nf6 8.d4, White has a healthy center. If Black plays 8...e4, White answers 9.Ng5 with tempo.
Exchange Variation — 5.Bxc6+ bxc6 6.d4
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 exd4 7.Nxd4 c5 8.Ne2 Ne7
White gives up the bishop to double Black's c-pawns, similar to the Exchange Variation. Black has the bishop pair and the doubled pawns become less of a problem because d6 is already played. This is not as effective as the Exchange after 3...a6.
5.O-O Bg4 — Pinning the Knight
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bg4 6.h3 Bh5 7.c3 Nf6 8.d4 Nxd4
If White castles on move 5, Black can pin the knight with Bg4. White plays h3 to ask the bishop, then c3 and d4. After 8...Nxd4, the position opens and Black has some activity with the pin. White should play 9.cxd4 and fight for the center.
Common Mistakes & Traps
Mistake 1 — Not taking on f5 in the Siesta
Black plays 5…f5. White plays passive moves and lets Black build a dangerous attack.
White doesn't take on f5 and tries to fight with d4 instead. Black takes on e4 and the position opens in Black's favor. Black has the initiative and White's pieces are not well placed.
6.exf5 is the right answer. White takes the pawn, castles, and plays d4. The center is solid and Black's f5 attack has been stopped. White is clearly better.
Mistake 2 — Bxc6+ too early, losing the bishop pair advantage
White exchanges the bishop for the knight when there’s no real reason to.
After bxc6, Black's doubled pawns are connected and d6 is already there. Black has the bishop pair for free. White gained nothing. The Exchange here is worse than in the main Ruy Lopez Exchange Variation.
Keep the bishop on a4 or b3. 5.c3 is the principled move. White builds the center with d4 and Black has a cramped, passive position. Don't exchange the bishop for the knight here.
Mistake 3 — Ignoring the center and playing passively
White plays too many flank moves and lets Black equalize in the center.
White plays Re1, h3, and a3 without pushing d4. Black gets b5 in comfortably and is equalizing. White has wasted moves with no central progress.
5.c3 and 6.d4 is the correct approach. White fights for the center immediately. After 7.cxd4, White has a strong pawn center and more space. Don't let Black equalize without a fight.