Réti Opening: Penguin Variation

1.Nf3 d5 2.c4 d4 3.Rg1

ECO A09

The Réti Opening: Penguin Variation is a chess opening line in the Réti Opening complex, reached after 1.Nf3 d5 2.c4 d4 3.Rg1.

It is catalogued under code A09 in the Encyclopaedia of Chess Openings (ECO).

The defining move Rg1 is chosen by White on move 3.

Study this line with a grandmaster

This position is covered in the Reti Opening course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.