Chessy
The King's Gambit Declined: Senechaud Countergambit — Playing as Black
After 1.e4 e5 2.f4, most players expect you to accept the gambit or play 2...Nc6. But the Senechaud Countergambit answers with 2...Bc5 3.Nf3 g5 — a wild, old-school line that tells White you came to fight. Before you dive into this position, you should know the truth: Stockfish rates it +2.08, a near-decisive advantage for White. That means you are in serious trouble against perfect play. But the statistics across 898 games tell a more human story — White wins 68.8%, but you still win 29.3%. The Senechaud is a practical weapon: if White doesn't know the best answer, you get a vicious attack. This page shows you what to expect and where most games go wrong.
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The Senechaud Countergambit is a pawn-storm opening. You sacrifice one pawn (the one on g5) and possibly another to rip open lines against the White king. Your bishop on c5 already eyes f2 — the classic weak spot in the King's Gambit. After 3...g5, White's best move by far is 4.Nxg5, which continues with h6 Nf3 d5. You push d5 to open the centre while White's knight runs from your h-pawn. If White does not find Nxg5 — and the stats show they often don't — your counterplay arrives fast. The engine evaluation (+2.08) looks scary, but in practice White plays the best move only 99 times out of 898 games. Most opponents pick something else, and your winning chances jump.
White's Best Move: 4.Nxg5
The critical line you must be ready for is 4.Nxg5 h6 5.Nf3 d5. This is the engine's top choice, and it is what a prepared opponent will play. After 5...d5, you strike at White's centre immediately. The idea is to open lines for your pieces while chasing the knight back. Even here, the position remains messy — you are down a pawn but have active development and the bishop pair. Your game plan is to finish development quickly (Nf6, O-O, Re8) and try to exploit the open f-file and the d4 square. White's advantage requires precise play to convert; one slip and your counterattack becomes overwhelming.
The Most-Played Moves — And Which Ones to Punish
Looking at the 898-game database, here is what White actually plays most often at club level, and what that means for you: - 4.fxe5 (267 games, White scores 70.0%): This is the most frequent choice but still not the best. White takes on e5, leaving your g5 pawn alive. You can continue ...Nc6, ...d6, or even ...Qe7, building a strong centre. - 4.fxg5 (257 games, White scores 70.8%): White takes the bait. After 4...Qxg5, you threaten ...Qxf3 or ...Bxg1. The position becomes tactical immediately. - 4.Nxe5 (81 games, White scores 70.4%): This is classified as an inaccuracy. You can reply ...Qe7, forking the knight and the pawn on e4, winning back material with good play. - 4.Bc4 (73 games, White scores 67.1%) : This is a full mistake (~1.0 pawns worse than best). After 4...gxf4, you not only win a pawn but also threaten ...Qh4 with deadly effect. - *4.d4 (38 games, White scores 81.6%) ***: An inaccuracy, but White still scores well because your reply must be precise. Take on d4 with your bishop: 4...Bxd4, and after 5.Nxd4 exd4, you have the centre and can play ...Qf6 or ...c5 next.
Three Mistakes White Makes — And How to Exploit Them
The FACTS identify three specific White errors in this position. Memorise them. 1. 4.Nxe5 (inaccuracy): White grabs the wrong pawn. Your reply 4...Qe7 attacks the knight and the e4-pawn. White likely retreats, and you win back the pawn with an active queen. 2. 4.Bc4 (mistake): This looks natural, developing with a threat, but you reply 4...gxf4 and White has nothing for the pawn. The bishop on c4 doesn't stop ...Qh4, which is often a killer follow-up. 3. 4.d4 (inaccuracy): White tries to seize the centre immediately. Take 4...Bxd4, and after 5.Nxd4 exd4 you have a clean extra pawn and comfortable development. The engine says White should play Nxg5 instead of any of these. Your job is to make them pay when they don't.
Results across 898 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| fxe5 | 267 | 70.0% |
| fxg5 | 257 | 70.8% |
| Nxg5 | 99 | 66.7% |
| Nxe5 | 81 | 70.4% |
| Bc4 | 73 | 67.1% |
| d4 | 38 | 81.6% |
Frequently asked questions
Is the Senechaud Countergambit sound?
Not by engine standards. Stockfish gives White +2.08, a near-winning advantage. But in human play, White only scores 68.8% across 898 games — far from perfect. If your opponent does not know the precise refutation (4.Nxg5), you get excellent practical chances.
What is the best move for White against the Senechaud?
White's best is 4.Nxg5, followed by h6 Nf3 d5. This line keeps White's advantage and challenges your counterplay immediately. It appears in only 99 of 898 games in the database, so most opponents will not find it.
How do I punish White if they play 4.Bc4?
4.Bc4 is a mistake that loses about one pawn in evaluation. Simply capture with 4...gxf4. You win a pawn and threaten ...Qh4, giving you a dangerous attack. White's bishop on c4 is useless against your kingside threats.
What should I do after 4.fxg5?
Recapture with 4...Qxg5. Now you threaten ...Qxf3 (winning a piece) and ...Bxg1 (winning the rook). White must react carefully. This line is common (257 games) and leaves you with active play and a solid position.