Famous Chess Games Annotated: Reading the Opera Game

Both sides advance their king pawns two squares to the centre. In algebraic notation, no piece letter means pawn — so e4 is 'pawn to e4.' Black mirrors with e5.

Nf3: White's king's knight (N) moves to f3, attacking the e5 pawn and developing a piece. Black plays d6 — the Philidor Defence — supporting the e5 pawn but passively.

d4: White opens the centre with a second pawn. Bg4: Black's dark-squared bishop pins the f3 knight to the queen. B = Bishop. g4 is the destination square.

dxe5: White's d-pawn captures on e5 (x = capture). The pawn on d4 takes the pawn on e5. Bxf3: Black's bishop captures the knight on f3. Black wins a piece — but gives up the bishop pair and surrenders the centre.

Qxf3: White's queen recaptures the bishop on f3. dxe5: Black's d-pawn captures the advanced e5 pawn, winning it back. Black has equalised material but White has the bishop pair and better development.

Bc4: White develops the light-squared bishop to a powerful diagonal, eyeing the f7 square (a classic weakness near Black's king). Nf6: Black develops the king's knight, attacking the e4 pawn.

Qb3: A dual-purpose move — the queen attacks f7 and also eyes the b7 pawn. Black is immediately under pressure. Qe7: Black defends f7 with the queen. The queen on e7 also prepares to castle queenside — but blocks the dark-squared bishop.

Nc3: White develops the queen's knight rapidly — every White piece is now active. c6: Black wants to play ...b5 to kick the bishop on c4, but this move doesn't address the development problem.

Bg5: White pins Black's f6 knight to the queen on e7. This is a critical move — it prevents Black from developing normally. b5: Black attacks the bishop anyway. But Morphy has a brilliant response.

Nxb5: Morphy sacrifices the knight on b5, cracking open the position. cxb5: Black must take — if cxb5 wasn't played, White plays Nc7+ forking king and rook.

Bxb5+: The bishop captures on b5 with check (+). The '+' means the king is now in check. White has sacrificed a whole knight to demolish Black's queenside. Nbd7: Black blocks the check with the queen's knight. 'Nb' specifies which knight — the one on b8.

O-O-O: Morphy castles queenside, moving the king to c1 and bringing the rook to d1 in one move. This is queenside castling — three Os, not two. The rook is now aimed at the d-file. Rd8: Black defends the d7 knight with the rook.

Rxd7: The d1 rook captures the knight on d7. White sacrifices the exchange (rook for knight) to further expose Black's king. Rxd7: Black's rook recaptures — forced.

Rd1: White brings the second rook to the d-file, doubling rooks and threatening the pinned d7 rook. The position is now completely dominated by White's pieces. Qe6: Black tries to defend, but it's too late.

Bxd7+: The bishop captures the rook on d7 with check. Another sacrifice — White gives up the bishop to further strip Black's defences. Nxd7: The f6 knight recaptures. Black's position has completely collapsed.

Qb8+: The queen delivers check on b8, and Black must take it. Nxb8: The knight captures the queen. But White has a stunning finish.

Rd8#: The d1 rook moves to d8. Checkmate. The '#' symbol means checkmate — the game is over. The king on e8 is attacked by the rook and has no escape. Every White piece contributed; Black's pieces are all paralysed.