Decks

Each card is a position where it is your move. Play the move on the board; rate how easily it came, like Anki.

Stonewall Dutch

Black vs 1.d4 (and 1.c4 / 1.Nf3): f5, e6, d5, c6, Bd6, Qe7, Ne4.

0Due

0Learning

10New today

541Cards

Study Lines & build

4001 positions · built from the database 2026-09-25

Stonewall Attack

White: d4, e3, Bd3, f4, Nf3, Nbd2, O-O, Ne5 and a kingside attack.

5Due

1Learning

10New today

516Cards

Study Lines & build

4000 positions · built from the database 2026-09-25 · 30 days 5 reviews, 80% right

New deck

Any opening, either colour. Paste a PGN with the lines you want (variations welcome), or leave it empty and grow the deck from the database in Lines & build.