Eric Rosen's Blitz

Pre-made chess opening repertoire for White

Built from Eric Rosen's games. Not affiliated with or endorsed by Eric Rosen.

Add to my repertoire, free Opens in Chessbook. No signup required.

About this repertoire

A repertoire based on this popular streamer's take on the London System.

What it looks like at your rating

Chessbook trims every repertoire to the moves opponents actually play at your level, so the same repertoire is a different size for a 1000 and a 2000. These numbers use the default coverage target of one game in 150; effectiveness and soundness are Chessbook's own scores, explained in the help pages.

Lichess rating	Moves to learn	Effectiveness	Soundness
0-1000	42	24 / 100	74 / 100
1000-1200	50	29 / 100	71 / 100
1200-1400	55	35 / 100	70 / 100
1400-1600	62	35 / 100	69 / 100
1600-1800	63	37 / 100	69 / 100
1800-2000	73	42 / 100	67 / 100
2000-2200	83	43 / 100	66 / 100

More pre-made repertoires

Hanging Pawns' Caro-Kann for White
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Questions about pre-made repertoires

Is Eric Rosen's Blitz free?

Yes. Every pre-made repertoire on Chessbook is free to add. The free Starter plan holds up to 200 moves across your repertoires; Chessbook Pro removes the limit.

What happens when I add it?

The lines are copied into your own repertoire, trimmed to the positions that actually occur at your rating. From there you can edit any move, add lines from other sources, and drill everything with spaced repetition.

Can I combine it with my own White openings?

Yes. A Chessbook repertoire is one tree per colour, so a pre-made repertoire sits alongside anything you add yourself and the coverage report treats them as one.