A41–C00 Semi-open games

Rat Defense

Rat Defense belongs to the semi-open games family and has 11 catalogued lines.

Best for

Start with the main line, then add the variations that appear in your own games.

Study map

Start with one line, then add nearby branches.

0 started · 0 mastered

01Rat Defense: HarmonistB00 · 2 movesnew02Rat Defense: Petruccioli AttackB00 · 2 movesnew03Rat Defense: Spike AttackB00 · 2 movesnew04Rat Defense: Antal DefenseB00 · 2 movesnew05Rat Defense: Balogh DefenseA82 · 2 movesnew

Browse all 11 lines

Open the catalogue only when you need a specific branch.

English Rat3 lines
Accelerated Gurgenidze1 lines
Antal Defense1 lines
Balogh Defense1 lines
Fuller Gambit1 lines
Harmonist1 lines
Petruccioli Attack1 lines
Small Center Defense1 lines
Spike Attack1 lines

Mix the variations

Practice changing book replies after you know at least 2 lines.

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