New Orleans · 1849
The Historical 12th Birthday Game
Paul Morphy vs. Eugene Rousseau — Blindfolded on his twelfth birthday, Morphy attacks through the King’s Gambit and delivers checkmate in seventeen moves.
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Starting position
Ready
Press Auto-play to watch the game, or step move by move.
Main lesson
Sacrifice material only when it opens lines and gives your pieces a concrete route to checkmate against the exposed king.
Lesson notes
Moves 1–5 — the King’s Gambit
- 2.f4 offers a pawn to open lines; Black accepts with 2...exf4.
- 3...g5 and 4...g4 protect the extra pawn but delay development.
- 5.Ne5 aims at f7. Identify the defenders before considering a sacrifice.
Moves 6–9 — the knight sacrifice
- 6.Nxf7 draws the king out after 6...Kxf7.
- 7.Qxg4 and 8.Bc4+ bring the queen and bishop into the attack.
- 9.Nc3 adds another attacker rather than stopping to recover material.
Moves 10–13 — opening the e-file
- 10.e5 offers a pawn: after 10...Qxe5+, the e-file is clear.
- 11.Kd1 clears e1 so the h1 rook can enter with 12.Re1, attacking the queen.
- 13.Bxg8 removes a knight while the black king remains vulnerable.
Moves 14–17 — the mating combination
- 14.Re8+ sacrifices the rook to lure the king onto e8.
- 15.Qxc8+ brings the queen onto the eighth rank with check.
- 16.Nxd5+ brings the knight into the mating net; after 16...Kd6, 17.Qc7# ends the game.
What your student should learn
- Recognize the King’s Gambit pawn offer and the weak f7 square.
- Calculate the knight and rook sacrifices before playing them.
- Use a pawn break to open a file for an attacking rook.
- Explain how queen and knight cooperate in the final mating net.
- Track piece locations mentally as a visualization exercise.
Rules to remember
- Rule 1Calculate checks, captures and threats before sacrificing material.
- Rule 2Open files are valuable only if your pieces can use them.
- Rule 3Bring fresh pieces into the attack instead of chasing material.
- Rule 4Check your own king’s safety even when you are attacking.
- Rule 5Before calling a move mate, check captures, blocks and every escape square.
Mini tournament checklist
- ✓ Is the enemy king exposed, and can I force it to remain exposed?
- ✓ Does my sacrifice create checks or a concrete threat?
- ✓ Can another piece join the attack on the next move?
- ✓ Have I checked my own king’s safety?
- ✓ Does the final position rule out every capture, block and escape?
Run through this list before you start an attack in a real game. Mostly yes means look for tactics; otherwise improve one more piece first.
Coach's challenge
Set up the position after 13...d5. Find 14.Re8+ and calculate the supplied continuation through 17.Qc7#. Explain how the knight on d5 protects the mating queen and covers e7.
Full move list
The King’s Gambit
The Knight Sacrifice
Opening the e-file
The Mating Combination
Note: King’s Gambit Accepted, Kieseritzky Gambit. This lesson follows the supplied video line with 5.Ne5; published game scores also record 5.Ng5. Both lead to 6.Nxf7. The game is recorded as a blindfold victory on 22 June 1849, Morphy’s twelfth birthday.