A02

Bird's Opening

Bird's Opening (1.f4) is an aggressive flank opening named after Henry Bird. White immediately stakes a claim on the e5 square and prepares a kingside attack, though the early f-pawn advance slightly weakens the king's position.

Bird's Opening (1. f4) is an aggressive flank opening named after Henry Bird.

6Sub-Variations
2Study Lines
9Deepest Line
View Variation Tree →
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
6Sub-Variations
2Study Lines
9Deepest Line

Training Modes

Start Here

Explore

Browse the full variation tree and discover named branches.

Practice

Play lines against the computer and get instant feedback.

Play

Play a real game against the computer using this opening's lines.

Dive Deeper

Explore sub-variations with their own training modes and traps.

Key Lines

Dutch Variation→Falkbeer Countergambit Accepted→King's Gambit Accepted→King's Gambit Declined: Falkbeer Countergambit→King's Gambit→King's Knight's Gambit→