Pterodactyl Defense: Central, Bogolubovia

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5

Pterodactyl Defense: Central, Bogolubovia after 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5 87654321abcdefgh

The Pterodactyl Defense: Central, Bogolubovia is a chess opening classified as ECO A42, reached after 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5. It is a line of the Pterodactyl Defense. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 1 times by this move order. White won 100%, 0% were drawn and Black won 0%. The most popular continuation is 6. Be3 (100% of games).

Engine evaluation: +0.87 (Stockfish, depth 30; best line 6. d5 b5 7. cxb5 a6 8. Ng3 h5)

ECO
A42
Moves
10 plies
FEN
rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq - 2 6
PGN
1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 c5 5. Nge2 Qa5

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
2000+1100%
All1100%

Most played moves

MoveGamesWhite / draw / Black
6. Be31 (100%)100%

Master games

2 over-the-board games are classified under this line (White 0%, draw 50%, Black 50%). The strongest:

Search all games of the Pterodactyl Defense: Central, Bogolubovia and its sub-variations

Highest-rated Lichess games

Comes from

Queen's Pawn Game: Modern Defense 1. d4 g6

More Pterodactyl Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.