A threat to f7 is answered with a threat to your king.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5
Study the Traxler if you want to practise calculating forcing moves with material hanging on both sides. It is a sharp, risky counterattacking choice that requires serious preparation. White players should learn the difference from the Fried Liver before making an automatic knight capture, since Black's bishop on c5 changes the immediate danger completely.
Black can answer the material threat with a forcing bishop check against White's king. The purpose is to change which player must respond first.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7
Position notation (FEN)
r1bqk2r/pppp1Npp/2n2n2/2b1p3/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - 0 5
Three ideas to remember
The c5-bishop creates a reciprocal target
White's bishop attacks f7; Black's bishop now attacks f2. Each pawn is near its own king. When White moves a knight to f7, Black can use a check on f2 to seize the move order. The strongest visible material threat may be secondary to a forcing threat against the king.
Taking the bishop changes the king's route
After ...Bxf2+, Kxf2 brings White's king into the open and permits further checks such as ...Nxe4+. Declining with Kf1 creates a different position and preserves another set of defensive resources. Both choices require calculation; the catalogue separates them precisely because the same follow-up does not apply.
The attack needs a sequence, not one sacrifice
Black's bishop offer can gain activity, but only if the remaining pieces coordinate and the checks maintain real pressure. White may defend or choose a different f7 capture altogether. Before sacrificing, verify legal king moves and escape squares rather than relying on the romantic image of ignoring an attacked queen.
Turn the structure into a plan
White's plan
White must check Black's forcing moves before taking material on f7 or h8. If entering the Nxf7 branch, calculate both accepting and declining the bishop check. Alternatives such as Bxf7+ produce different positions and deserve separate preparation. The objective is keeping the king defensible while converting any material gain, not finishing the fork at every cost.
Black's plan
Black uses the c5-bishop, central knight and queen to create forcing threats when White's king becomes exposed. Check the order of checks and captures carefully. If White refuses the sacrificial line or answers accurately, Black still needs development and a safe king. An attacked queen is only acceptable if the counterplay is concrete, not because the line has a famous name.
Common mistakes
Treating the f7 fork as the end of calculation
The Central Break introduction below follows Nxf7 with ...Bxf2+, Kxf2 and ...Nxe4+. White's knight attacks major pieces, but Black's checks control the order of play. Stop before the first capture and calculate the king moves; otherwise the apparent material gain can be irrelevant.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+
Using a Fried Liver queen check in the wrong position
The Fried Liver follows ...d5 and ...Nxd5 and may expose Black's king through ...Kxf7. Here Black has played ...Bc5 instead and can attack White's king. The same first seven moves do not give the same sacrificial logic after Black chooses a different eighth ply.
Representative variations
These are introductory sequences from existing training lines, not a complete repertoire or a promise of a forced result.
Central Break
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+
Central Break accepts the bishop sacrifice and answers with ...Nxe4+. The king's legal escapes determine the rest of the forcing line.
Queen Snare
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kf1 Qe7
Queen Snare declines the bishop with Kf1 and uses ...Qe7. It must be studied separately from the Kxf2 branch because White's king remains on the back rank.
Queen Win
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+
Queen Win begins with the same accepting sequence as Central Break, then chooses a different king route. The later result is a specific training example, not an automatic opening verdict.
A practical exercise
Black to move in the diagram above
Find the bishop check that begins the catalogue counterattack. Name the two White king responses shown by its branches.
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5 5. Nxf7
Reveal the answer and explanation
5...Bxf2+ checks the king and forces White to address king safety before completing the fork. Kxf2 accepts the sacrifice and permits central knight checks; Kf1 declines it and creates a different defensive arrangement. The move demonstrates the Traxler motif, not a claim of a forced win.
Frequently asked questions
Does White have to play Nxf7?
No. White has other choices, including a bishop capture on f7 with check. Those change Black's counterattack, so a repertoire based only on the catalogue's Nxf7 traps is incomplete.
Is the Traxler the Fried Liver?
No. ...Bc5 replaces the ...d5 route, and Black's bishop attacks f2. The defender's immediate counterthreat is the defining difference.
Understand it. Then practise it.
Calculate the diagram without moving pieces and list White's legal replies to the bishop check. Then train Kxf2 and Kf1 as separate branches. Compare the starting position with the Fried Liver so the bishop's presence, not the familiar opening sequence, determines your decision.
Practice this openingChoose a line in the catalogue. Existing free and Premium access rules apply.