Library/Openings/Bogo-Indian Defense/Monticelli Trap ECO E11
Opening· 19 plies

Bogo-Indian Defense: Monticelli Trap

An entry in the Encyclopedia of Chess Openings (ECO E11), reached after 19 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5.

Bogo-Indian Defense: Monticelli Trap ECO E11
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Black rook
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End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Bogo-Indian Defense: Monticelli Trap is an opening in the Encyclopedia of Chess Openings, classified under code E11. ECO group E (E00–E99) covers Indian defences against 1.d4, covering the Nimzo-Indian, Queen's Indian, King's Indian and Catalan systems. This particular variation is reached after 19 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5.

It belongs to the Bogo-Indian Defense family. Within that family this is a sub-variation (the Monticelli Trap line).

The opening sequence in prose form: 1.d4 Nf6, 2.c4 e6, 3.Nf3 b6, 4.g3 Bb7, 5.Bg2 Bb4+, 6.Bd2 Bxd2+. 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.