Old Indian Defense: Czech Variation, with Nf3

1.d4 Nf6 2.c4 d6 3.Nf3 c6

ECO A53

The Old Indian Defense: Czech Variation, with Nf3 is a chess opening line in the Old Indian Defense complex, reached after 1.d4 Nf6 2.c4 d6 3.Nf3 c6.

It is catalogued under code A53 in the Encyclopaedia of Chess Openings (ECO).

The defining move c6 is chosen by Black on move 3.

Study this line with a grandmaster

This position is covered in the Modern Defense 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.