Chessy
Schliemann Defense / Jaenisch Gambit (1.e4 e5 2.Nf3 Nc6 3.Bb5 f5)
Instead of allowing the Ruy Lopez's slow positional grind, Black fires back with 3...f5 — a pawn thrust that creates immediate complications at the cost of structural risk. The engine is skeptical, but Black holds its own in practice. Play it below and feel why it unnerves Ruy Lopez players.
Play the Ruy Lopez: Schliemann Defense against the engine
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Create a free account →The engine's view: a real disadvantage
Stockfish evaluates after 3...f5 at +0.61 for White. The engine recommendation is d4 — the most principled counter, hitting both center pawns immediately. White's best line: d4 fxe4 Nxe5 Nxe5, reaching a position with better coordination and the structural imbalances firmly in White's favour. At top level the Schliemann is rare precisely because of this: a well-prepared player with d4 finds a clean path to advantage.
Why the scoreboard doesn't match the engine
Across 863,277 games White scores 46.5% and Black 50.1% — Black is the practical winner. The most-played White responses are not d4 but Bxc6 (293,289 games, 44.6%) and exf5 (263,165 games, 44.2%), both scoring below 45% for White. d3 (175,717 games, 50.8%) and Nc3 (74,106 games, 50.6%) score better, but d4 — the engine's recommendation — appears in only 21,634 games (53.6%). Most White players don't play what the engine wants.
White's correct path — and the practical traps
The engine flags two White mistakes:
- exf5 — inaccuracy, 53 cp lost vs d4; grabs a pawn but lets Black's game open up freely
- O-O — mistake, 118 cp lost; best reply here is actually d3, not castling into a sharp position
White's practical approach is d3 or Nc3 (both scoring 50%+), not the popular Bxc6/exf5 choices. The Schliemann punishes White's instinctive, non-engine responses.
Playing the Schliemann as Black
Black's purpose is disruption: 3...f5 breaks the Ruy Lopez's usual structure and forces White into a different kind of calculation. After exf5, Black has open lines; after Bxc6, White's bishop pair claim comes at the cost of Black's knight pair. The gambit is best in rapid/blitz, where the complications are hardest to navigate on the clock. It's not objectively sound, but it's a sharp, concrete weapon against 1.e4 players who expect routine Ruy Lopez play.
Results across 863,277 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bxc6 | 293,289 | 44.6% |
| exf5 | 263,165 | 44.2% |
| d3 | 175,717 | 50.8% |
| Nc3 | 74,106 | 50.6% |
| O-O | 24,272 | 47.2% |
| d4 | 21,634 | 53.6% |
Frequently asked questions
Is the Schliemann Defense sound?
Not objectively. Stockfish gives White +0.61 and recommends d4. But Black scores 50.1% across 863,277 Lichess games because most White players don't find d4 and instead play Bxc6 or exf5, both scoring below 45% for White.
What's the engine's best White reply to 3...f5?
d4 — striking the center immediately. It's the top engine recommendation and scores 53.6% for White in 21,634 games. The popular alternatives Bxc6 and exf5 both score worse for White (under 45%).
Why is d4 White's best but rarely played?
It's the engine's pick (61 cp advantage) but appears in only 21,634 of 863,277 games. Most players reach for Bxc6, exf5, or d3 by instinct. The Schliemann's practical success is largely built on this gap between theory and table habits.
Is the Schliemann related to the Jaenisch Gambit?
They're the same opening — 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 — known by both names. 'Schliemann Defense' is the more common modern name; 'Jaenisch Gambit' is the older term still used in some literature.
How many games feature the Ruy Lopez: Schliemann Defense?
Over 863K Lichess games have reached the Ruy Lopez: Schliemann Defense position. White wins 46.5%, Black wins 50.1%, with 3.4% draws — based on real rated games.
What is Stockfish's evaluation of the Ruy Lopez: Schliemann Defense?
At depth 16, Stockfish rates the Ruy Lopez: Schliemann Defense as a slight advantage for White (+0.61) from White's perspective. This is the computer's assessment of the position after the main opening moves.