22 Openings · 147+ Lines

Master the Opening

Explore every major opening by category. Learn the ideas, not just the moves — then put them to work in real games.

e4 Openings

Open games — sharp, tactical, and time-tested.

0/4 started

d4 Openings

Closed and semi-closed systems with long strategic battles.

0/2 started

Gambits

Material sacrificed for initiative, speed, and attacking chances.

0/4 started
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Defenses

Counter-systems that seize the initiative from Black.

0/9 started

Flank Openings

Hypermodern ideas — control the center from a distance.

0/2 started

Ready to play?

Put your openings to the test.

Theory only takes you so far. Jump into a game against the computer and try your lines under real conditions.

Play vs. Computer