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Openings
- Chess Atlas Subsections
- VOL. I • Chess HistoryFrom Chaturanga to Neural Engines
- VOL. II • Classic ChessPieces, Notation & Rules
- VOL. III • Legendary PlayersPantheon of Chess Immortals
- VOL. IV • Great GamesInteractive game studies
- VOL. V • OpeningsOriginal CAISSORA Opening Articles
- VOL. VI • Tactics & StrategyForks, Pins & Board Geometry
ECO D41Side: White
Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation
- Closed games
- Positional play
- Isolated pawn
Interactive Opening Board
9…Qa5
♚
Black
a
b
c
d
e
f
g
h
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
a
b
c
d
e
f
g
h
♔
White
9…Qa5
Speed:
Moves
(18 plies • 9 moves)9…Qa5Defining moveTabiya
- 1–9moves
- 1.
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Article
Queen's GambitGames in the Atlas
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