About this opening
Scotch Game: Classical Variation, Intermezzo Variation is an opening in the Encyclopedia of Chess Openings,
classified under code C45. ECO group C (C00–C99)
covers open games (1.e4 e5) and the French Defence, including the Ruy Lopez, Italian, Scotch and King's Gambit. This particular variation is reached
after 10 half-moves from the
starting position, with the move sequence 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6.
It belongs to the Scotch Game family.
Within that family this is a level-2 branch (the Classical Variation → Intermezzo Variation line). The immediate parent line is Scotch Game: Classical Variation, transitioned via 5…Qf6.
The opening sequence in prose form: 1.e4 e5, 2.Nf3 Nc6, 3.d4 exd4, 4.Nxd4 Bc5, 5.Nxc6 Qf6. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.