1. calculation slips in the middlegame in the London System (3 positions)
3 of your calculation slips in the middlegame mistakes happen in this opening, averaging 206cp lost. Most-played: e5 ×1, Red1 ×1, Nf8 ×1. Engine prefers: Qc8 ×1, Rd7 ×1, Nf6 ×1.
Drill focus: Step through these 3 positions; name what makes the engine's move stronger before revealing it.
drill 1 of 3
Find a better move than Nf8.
London System · ply 41 · black to move ·
you played Nf8
Show engine choice
Engine recommends:
Nf6
(your move lost Δ2.12)
drill 2 of 3
Find a better move than Red1.
London System · ply 46 · white to move ·
you played Red1
Show engine choice
Engine recommends:
Rd7
(your move lost Δ2.06)
drill 3 of 3
Find a better move than e5.
London System · ply 19 · black to move ·
you played e5
Show engine choice
Engine recommends:
Qc8
(your move lost Δ2.00)
2. calculation slips in the middlegame in the Caro-Kann Defense: Breyer Variation (2 positions)
2 of your calculation slips in the middlegame mistakes happen in this opening, averaging 323cp lost. Most-played: c3 ×1, Ncxe5 ×1. Engine prefers: Bf4 ×1, exf5 ×1.
Drill focus: Step through these 2 positions; name what makes the engine's move stronger before revealing it.
drill 1 of 2
Find a better move than Ncxe5.
Caro-Kann Defense: Breyer Variation · ply 18 · white to move ·
you played Ncxe5
Show engine choice
Engine recommends:
exf5
(your move lost Δ3.95)
drill 2 of 2
Find a better move than c3.
Caro-Kann Defense: Breyer Variation · ply 24 · white to move ·
you played c3
Show engine choice
Engine recommends:
Bf4
(your move lost Δ2.51)