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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.

The updates are also available to subscribers on the free Forward Chess app, for iOS as well as Android.

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

Recent additions

September 20
Daring Defences
A Grünfeld summer
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September 19
Open Sicilians
Uncompromising Sicilian battles at the World Cup
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September 18
French Defence
My old favorite: 3...h6 in the Tarrasch
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September 17
King’s Indian
Cutting edge developments from Sam Shankland
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September 16
1 e4 ...
Petrosyan versus Petrosian!
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September 10
1 e4 e5
A mix of well-forgotten and rare lines
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September 6
English & Flank Openings
A mix of old and new, and some strange transpositions!
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