Pirc Defense: Classical Variation, Quiet System

An entry in the Encyclopedia of Chess Openings (ECO B08), reached after 9 half-moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2.

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5…O-O 3 lines

About this opening

Pirc Defense: Classical Variation, Quiet System is an opening in the Encyclopedia of Chess Openings, classified under code B08. ECO group B (B00–B99) covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached after 9 half-moves from the starting position, with the move sequence 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2.

It belongs to the Pirc Defense family. Within that family this is a level-2 branch (the Classical Variation → Quiet System line). The immediate parent line is Pirc Defense: Classical Variation, transitioned via 5.Be2.

The opening sequence in prose form: 1.e4 d6, 2.d4 Nf6, 3.Nc3 g6, 4.Nf3 Bg7, 5.Be2. From this position exactly one named continuation is recorded in the encyclopaedia.