♜
black Rook (A8)
Value: 5 pts
Black's Queen's Rook (a8)
The black queenside rook starting on a8. Activates on open files, supports queenside castling, and executes lethal 7th-rank infiltrations in tactical chess.
Starting Square: A8
Piece Color: black
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Tactical Role & Opening Profile
The a8 rook starts tucked in the corner and comes alive once queenside files open or queenside castling takes place.
Mortality & Combat Intelligence50,000+ Games Analyzed
Black's Queen's Rook (a8) Casualty & Lifespan Analytics
Casualty Hotspot Matrix (Where This Piece Falls)
a8
b8
c8
d8
e8
f8
g8
h8
a7
b7
c7
d7
e7
f7
g7
h7
a6
b6
c6
d6
e6
f6
g6
h6
a5
b5
c5
d5
e5
f5
g5
h5
a4
b4
c4
d4
e4
f4
g4
h4
a3
b3
c3
d3
e3
f3
g3
h3
a2
b2
c2
d2
e2
f2
g2
h2
a1
b1
c1
d1
e1
f1
g1
h1
Low DangerTop Casualty Zone
Average Survival Ply (All Ratings)
Ply 53.2 (Move 27)
In Master play, pieces survive ~6 plies longer due to prophylactic defense and endgame conversions.
Primary Capture Epicenters (All Ratings)
Featured Opening Roles
- ▪ Queenside Castling
- ▪ Open A/C File Domination