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23,000+ GM commented games in pgn format

The latest opening theory! is an online publisher of chess opening theory. We employ 9 GMs and 4 IMs who publish monthly opening articles, downloadable PGN files, PDF eBooks and playable eBooks.

"I really like this site and highly recommend it to everyone!"
- GM Ruslan Ponomariov

Recent additions

September 25
d-Pawn Specials
Bg5 action from two ChessPublishing columnists!
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September 24
Open Sicilians
Baku: the Poisoned Pawn and other Najdorfs
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September 22
1 e4 e5
An Olympiad special
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September 18
French Defence
The Steinitz Classical has become a leading battleground
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September 17
1 d4 d5 2 c4
Critical ideas in the Semi-Slav Anti-Moscow Gambit
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September 16
1 e4 ...
New ideas in the Caro-Kann Two Knights
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September 16
Daring Defences
Developments in the English Defence, Benko and Budapest
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