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The line is named after Karel Traxler, who used it in his game against Reinisch in Hostouň in 1890. It is an aggressive choice for Black, the goal being to complicate the game with a counter-sacrifice on f2 by ...Bxf2+ and play for a win rather than a draw.
The Traxler in Brief
The Traxler Counter Attack (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5) is Black's most aggressive answer to the Two Knights Defense and the sharpest way to dodge the Fried Liver Attack. Instead of defending f7, Black hits back at f2. White has three serious tries, and the one you face decides almost everything:
- 5.Nxf7 (the Knight Sacrifice Line): the natural fork, but practically White's worst option. After 5...Bxf2+ Black gets a raging attack for the material.
- 5.Bxf7+ (the Bishop Sacrifice Line): White's objectively best try. Black gives up castling but keeps long-term pressure on the f-file.
- 5.d4: White tries to shut down ...Bxf2+. Black stays sharp with 5...d5.
Is it sound? Against 5.Nxf7 Black is doing great; only 5.Bxf7+ keeps a small edge for White. Below club level the Traxler scores far better than the engine evaluation suggests, which makes it an excellent practical choice, especially in faster time controls.
Study the Traxler Counter Attack as White or Black
The Traxler Counter Attack meets 4.Ng5 with a shrug at f7 and a bishop aimed at f2, dragging both players into forcing lines where a single misstep decides the game.
Punish the Traxler Counter Attack as White
White has three serious fifth moves against the Traxler Counter Attack, and the theory section compares them before the deeper coverage of the knight grab, the bishop check, and the central strike. Read the ideas piece first to see what Black's f2 sacrifice is designed to buy; that context makes White's choices far easier to remember.
Wield the Traxler as Black
Start with the honest soundness verdict: it separates the lines that survive a well-booked Traxler Counter Attack counter from the ones that collapse against best play. The traps section covers the quick club-level wins, and the FAQ handles the practical side, including how to face Traxler Counter Attack refutation attempts without panicking.
The Birth of the Traxler: Reinisch–Traxler, 1890
The opening takes its name from the Czech priest and problemist Karel Traxler, who introduced it in a casual game against Reinisch in Hostouň in 1890. That original miniature is the blueprint for everything that follows. After 4...Bc5, White captured the f7-pawn with the knight, and Traxler answered with the thematic 5...Bxf2+ 6.Kxf2 Nxe4+, hauling the king into the open. What came next was a hunt: ...Qh4+ and a swarm of pieces arriving with tempo, ending in a quick checkmate around the exposed monarch. Every modern line traces back to that idea. Black does not regain the material politely. Black chases the king. Replay the namesake game once and the f2-sacrifice stops looking like a gamble and starts looking like a plan, which is roughly why it has survived a century of engine scrutiny.
How the Traxler Scores in Practice
Before the theory, here is how the line performs for each side across a large sample of games.
| Rating level (Lichess) | White wins | Draw | Black wins |
|---|---|---|---|
| 800, beginner | 58.9% | 3.2% | 37.9% |
| 1000, novice | 51.4% | 2.5% | 46.1% |
| 1200, improver | 49.8% | 2.4% | 47.8% |
| 1600, club | 48.4% | 2.6% | 49.0% |
| 1800, club | 46.8% | 3.1% | 50.0% |
| 2000, advanced club | 46.0% | 3.9% | 50.1% |
Source: Lichess opening explorer, blitz, rapid and classical games at the position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5. Figures are win rates by Lichess rating band; draws are rare at these levels.
Watch: The Traxler in Under Five Minutes
If you prefer to see the ideas in motion first, the video below walks through the main lines before you dig into the written analysis.
The video is only the start. Below you will find deeper analysis, the relevant transpositions, and practical tips for handling the Traxler Counterattack.
Main Ideas of the Traxler Counter Attack: Why Black Sacrifices on f2
In the Fried Liver Attack, Black lets White sacrifice a knight on f7 and then defends carefully to convert the extra material. The Traxler turns that logic around. Here Black follows the principle that attack is the best form of defense and aims to seize the initiative. The opening hands Black plenty of room for creative tricks and traps, and it puts the opponent's tactics and calculation to a serious test.
Black's main idea is to exploit the time White spends capturing on f7. In the Knight Sacrifice Line, for example, the white knight needs three moves to reach f7 and grab it. Black answers with ...Bxf2+ to drag the white king into the center, where Black can bring more pieces into the attack with tempo through moves like ...Nxe4+ and ...Qh4. The open f-file is the other resource: ...Rf8 adds a rook to the assault.
In short, the Traxler is Black's most combative anti-Fried Liver weapon. Instead of suffering through a long defense, Black seizes the initiative as early as move four.
Traxler vs the Fried Liver: Which Should You Play?
Both openings begin from the same position after 4.Ng5, the Lolli-style fork attempt on f7, and both answer the Two Knights Defense. The difference is who attacks whom. Play 4...d5 and you enter Fried Liver territory: after 5.exd5 Nxd5 6.Nxf7, White sacrifices the knight and you spend the next twenty moves nursing an extra piece while your king sits on e6. Play 4...Bc5 instead and the roles flip. Before White can ever strike f7, Black is already hitting f2. The Fried Liver is the safer, more theoretically respected path. The Traxler is the proactive, win-or-lose choice. If you want to set the agenda and you trust your tactics, the Traxler is the one that puts White on the back foot.
Traxler Counterattack Theory: 4...Bc5 and White's Three Replies
With 4...Bc5 Black goes for active counterplay rather than defending f7 with 4...d5 or walking into the Fried Liver after 4...d5 5.exd5 Nxd5 6.Nxf7. The move 4...Bc5 invites White to take on f7 in two ways: 5.Bxf7+, the Bishop Sacrifice Line, or 5.Nxf7, the Knight Sacrifice Line.
Capturing with the bishop is the safer route on the surface, yet White can drift into trouble after natural moves: 5.Bxf7+ Ke7 6.Bd5 Rf8 7.0-0 d6 8.d3 Bg4 9.Qe1 and ...h6. The knight capture 5.Nxf7 looks more tempting because it forks queen and rook, but it also lets Black show what the Traxler is about: 5...Bxf2+. White can accept the sacrifice with 6.Kxf2 or step aside with 6.Kf1, and either way the position gets wild enough for Black to play for the full point.
Main Line and Sub-lines: 5.Nxf7 (Knight Sacrifice), 5.Bxf7+, and 5.d4
After 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5, the starting position of the Traxler Counter Attack, White can play 5.Nxf7, forking Black's queen and rook. In practice it is also the riskier one, because it allows Black to generate counterplay with 5...Bxf2+.
5.Nxf7 Bxf2+ 6.Kf1
White may prefer to deny Black the check from ...Nxe4+ by playing 6.Kf1. This is both the logical reaction and the best defensive try: Black has to spend time retreating the bishop to renew threats on f2 or along the f-file, and White still keeps the fork on the queen and rook. So 6...Qe7 is forced, and now White grabs the rook with 7.Nxh8. Black is a full rook down and must keep creating threats without losing the initiative, before White's queenside pieces come to life. The move 7...d5 offers the best practical chances.
It opens the diagonal for Black's light-squared bishop and, just as importantly, blocks White's light-squared bishop so that the stranded knight on h8 cannot escape through f7. After 8.exd5, grabbing more material and hitting the knight, Black plays 8...Nd4, bringing every available piece toward the white king. Despite the large material deficit the position remains very tricky, and White must play the next few moves precisely to consolidate. White can return the d-pawn with 9.d6 to rescue the knight, or try to evict the d4-knight with 9.c3.
After 9.d6 Black has no choice but to recapture with 9...Qxd6, allowing 10.Nf7 to attack the queen. Black sidesteps with tempo by 10...Qc5, and after 11.d3, defending the bishop, Black develops with tempo again: 11...Bg4 12.Qd2. Now it is time to tuck the dark-squared bishop back with 12...Bh4, and Black is already threatening ...Be2+.
White has no time for a move like c3 and must play 13.Nc3. Black keeps coming with 13...b5, the point being not the bishop but ...b4, to push the knight away and renew the ...Be2 idea. White prevents it with the sharp 14.b4, forcing the queen back with 14...Qe7. After 15.Bb3, Black has another sacrifice in 15...Nd5, clearing the f6-square so the queen can join the kingside attack. Then 16.Nxd5 runs into 16...Qxf7+ with check, and White has to surrender the knight with 17.Nf4 (17.Kg1 loses the queen to 17...Ne2+ 18.Qxe2 Bxe2) 17...Qf6 18.c3 Nxb3 19.axb3 exf4.
Instead, 16.Bxd5 allows 16...Qf6+. White must step out with 17.Kg1, and now Black has a sneaky resource: 17...Be2!, threatening ...Qf1#. Capturing the bishop fails: 18.Nxe2 Qf2#.
So White's only defense is to hand some material back with 18.Bf3 Bxf3 19.Qe3 Kxf7 20.gxf3. With best play from both sides the game reaches a curious endgame, queen against two minor pieces and a rook: 20...Nxf3 21.Kg2 Qg6+ 22.Kxf3 Qh5+ 23.Kg2 Qg4+ 24.Qg3 Bxg3 25.hxg3 Qxb4 26.Bd2.
5.Nxf7 Bxf2+ 6.Kxf2
Accepting the sacrifice is dangerous and not recommended for White. After 6.Kxf2 Nxe4+, White has to march the king toward the center with 7.Ke3, attacking the knight, because 7.Kg1 Qh4 8.g3 Nxg3 9.hxg3 Qxg3+ 10.Kf1 Rf8 leaves White scrambling for a draw at best. Then 7...Qh4 defends the knight, and 8.g3 is White's only move, since there is no time for anything slow.
The true spirit of the Traxler is to go all in. That means a steady stream of sacrifices and, at times, not even pausing to grab material. For example: 8.g3 Nxg3 9.hxg3 Qd4+ 10.Kf3, and here Black plays 10...d5 rather than 10...Qxc4, because activating the light-squared bishop with ...Bg4 matters more than winning the bishop on c4. The position stays sharp for both sides.
5.Bxf7+: The Bishop Sacrifice Line
While 5.Nxf7 is the move most opponents reach for, 5.Bxf7+ is objectively White's best try and the real test of the Traxler. Rather than forking the queen and rook, White takes the f7-pawn with check, drags the black king off its castling square, and only then looks to keep the extra pawn. After 5.Bxf7+ Ke7 Black does not chase the bishop; the king step is the whole point. White usually retreats with 6.Bd5 (6.Bb3 is the main alternative), and Black claims the open f-file with 6...Rf8. A natural sequence is 7.0-0 d6 8.d3 Bg4, attacking the queen on d1, and after 9.Qe1 h6 Black has easy, active piece play for the pawn. The half-open f-file and the g4-bishop give Black exactly the pressure the Traxler is built on, and White still has to prove the extra pawn means something. The honest verdict: with precise play White keeps a small edge here, but it is a long way from a refutation. This is the line to be ready for, and most opponents will not be.
How to Refute the Traxler as White: The 5.Bxf7+ Recipe
If you are the one facing the Traxler, the single most important rule is this: do not grab the rook. The greedy 5.Nxf7 hands Black exactly the attack the opening is built on. The engine-recommended antidote is 5.Bxf7+. After 5...Ke7, you have taken a pawn with check, forced the black king off its castling square, and kept your own king safe. From here the plan is simple. Develop calmly, return material the moment the attack demands it, and steer toward a quiet position a pawn up. Stockfish assesses this as roughly +0.5 for White with accurate play, a real if modest advantage. The 5.d4 line, blunting ...Bxf2+ by opening a flight square for the king, is a respectable secondary try. Learn both and the Traxler stops being scary.
Alternative for White: 4.Ng5 Bc5 5.d4
White can also reduce the bite of ...Bxf2+ with 5.d4, creating extra escape squares for the king. Now 5...exd4 lets White fork with 6.Nxf7 without worrying about ...Bxf2+, and after 5...Bxd4 6.c3 the sacrifice loses its sting: 6...Bb6 7.Nxf7 Bxf2+ 8.Kxf2 Nxe4+ 9.Ke3 Qh4 10.g3 Nxg3 11.hxg3 Qxg3+ 12.Qf3 and White is winning.
So 5...d5 is Black's best try to keep the threats alive.
Common Traps in the Traxler Counter Attack (Trap №1 and Trap №2)
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Nxf7 Bxf2+ 6.Kxf2 Nxe4+ 7.Ke3 Qh4 8.d3?? White has no time for slow moves like this, and 8...Qf4+ 9.Ke2 Qf2# ends it.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 5.Nxf7 Bxf2+ 6.Kxf2 Nxe4+ 7.Ke3 Qh4 8.Qf3?? Trying to shore up the squares around the king like this is a serious blunder. 8...Nf6 preparing ...d5 9.Nxh8 Nd4 10.Qf1 (10.Qg3 Nf5+) 10...d5 11.Bb3 Ng4+ 12.Kd3 Nf2+ 13.Kc3 Ne2+, a clearance sacrifice, 14.Qxe2 Qd4#.
The f2 Mirror Mate: Why Greedy White Gets Punished
The reason the Traxler scores so well in practice comes down to one recurring pattern after 5.Nxf7 Bxf2+ 6.Kxf2 Nxe4+ 7.Ke3 Qh4. White, a bishop up for a pawn, often cannot resist a slow consolidating move, and slow moves are fatal here. The cleanest example is 8.d3??, when 8...Qf4+ 9.Ke2 Qf2# delivers mate on the very square where Black's adventure began: the f2 mirror mate. A related disaster is 8.Qf3??, which collapses after 8...Nf6 and a forced king-hunt ending in ...Qd4#. For both sides the takeaway is concrete. After 6.Kxf2, White must keep walking the king forward with 7.Ke3 and meet ...Qh4 with the only move, 8.g3. There is no time for development, only for survival.
Test Yourself: Spot the Critical Move
Set up each position and find the best move. Use Hint for a nudge or Answer to reveal the engine’s top move.
Find the best move.
Find the best move.
Find the best move.
Find the best move.
Find the best move.
Is the Traxler Counter Attack Sound? A Line-by-Line Verdict
"Is it sound?" is the wrong question. The right one is "sound against which move?", because the evaluation swings completely depending on White's fifth move.
- Against 5.Nxf7: Black is doing great. The knight needs three tempi to reach f7, and after 5...Bxf2+ Black's attack rolls in faster than White can untangle the queenside. Both 6.Kf1 and 6.Kxf2 lead to wild positions with full practical compensation, and 6.Kxf2 is genuinely dangerous for White.
- Against 5.Bxf7+: White keeps a small edge. This is the only line that troubles Black, and even here Black gets active piece play and an open f-file for the pawn. A pull, not a refutation.
- Against 5.d4: roughly balanced if Black knows to answer 5...d5.
So the textbook label "objectively unsound" really only applies if White finds the best fifth move and the precise follow-up, and almost nobody does over the board. In the Lichess and online databases the Traxler scores far better for Black than the engine evaluation suggests, especially in blitz and rapid where White rarely has time to find the path. Treat it as a fully sound practical choice up to club level and a fine surprise pick above it.
Should You Play the Traxler at Your Level?
The Traxler's practical value depends heavily on the rating band you play in. Below roughly 1800 it is a strong fighting choice. Most opponents instinctively reach for 5.Nxf7 to win the rook, the very move that lets Black's attack roll in, and almost nobody finds the engine-best 5.Bxf7+ followed by the precise king walk. In faster time controls the edge is even sharper, because White simply has no time to find the right path. Above club level, treat it as a surprise pick rather than a main repertoire choice, since strong opponents know to answer 5.Bxf7+ and consolidate the pawn. The pattern I keep running into is this: the rook on h8 is bait, and the moment White takes it, the game is being played on Black's terms. Even the bad days hand you a sharp position where you set the questions from move four.
Case Study: The Knight Sacrifice Line, Move by Move
This is the most instructive complete line in the article. It runs from the starting position all the way into an endgame, and it shows both why the Traxler is so dangerous after 5.Nxf7 and exactly how much precision both sides need. Treat it as a model game rather than a real over-the-board encounter.
A few things are worth pointing out as you play it through.
- 5.Nxf7 Bxf2+ 6.Kf1: White declines the gift and keeps the fork. This is the toughest defense, and it is why Black must keep finding only-moves. The 6.Kxf2 capture is more tempting but more dangerous, as the trap section shows.
- 7.Nxh8 d5: White is a full rook ahead, but 7...d5 is the soul of the line. It opens Black's bishop and slams the door on White's, so the knight on h8 is trapped in the corner. Note what Black is buying with the rook: time and an attack, not material.
- 8.exd5 Nd4: rather than recapture, Black throws another piece toward the king. The d4-knight eyes e2 and f3 and supports the coming pile-up.
- 9.d6 Qxd6 10.Nf7 Qc5: White returns the pawn to free the knight, but every tempo Black spends keeps the attack rolling. The queen dodges with gain of time.
- 11.d3 Bg4 12.Qd2 Bh4: developing with threats. ...Bh4 sets up the ...Be2+ idea, the recurring motif of this whole structure.
- 13.Nc3 b5 14.b4 Qe7 15.Bb3 Nd5: the turning point. With 15...Nd5 Black sacrifices again to clear f6 for the queen. From here White has only one path that does not lose on the spot.
- 16.Bxd5 Qf6+ 17.Kg1 Be2: the trap inside the trap. ...Be2 threatens ...Qf1#, and 18.Nxe2 walks into 18...Qf2#. White must give material back.
- 18.Bf3 Bxf3 19.Qe3 Kxf7 20.gxf3 Nxf3+: the attack finally cashes in. Black regains the corner knight and emerges with a workable material balance, queen against rook and two minor pieces, with the safer king.
- 26.Bd2: the dust settles into a sharp, roughly balanced endgame.
The practical takeaway for a club player: Black never plays for the material count in this line. Every move buys tempo and keeps a concrete threat on the board, and White's defense only holds with a string of precise moves that are very hard to find in a real game. That gap between "the engine line holds" and "a human finds it" is the whole reason the Traxler works.
The Verdict: Strengths, Risks, and When to Play It
PROS
- Requires precise defense
- Lots of creative attacking chances and opening tricks
CONS
- Objectively unsound, if white knows the theory
- If the attack is unsuccessful, the material deficit becomes a big disadvantage.
Final Thoughts on Playing the Traxler
By the strict objective evaluation, the Traxler Counter Attack counts as unsound, which is why it is rare at the very top. But it lights a fire on the board that White can navigate only with very precise play. For Black it shines in faster time controls, where the opponent simply lacks the time to find the best moves and the half-open f-file, the ...Nxe4+ and ...Qh4+ ideas, and the king walk all come together in Black's favor.