CAISSA RESEARCH
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Drills · Middlegame positional drift

brianhliou · 4 drills across 2 patterns · 2026-05-01 05:28 UTC
Top diagnosis: 352 positional drift in the middlegame positions across 2 openings

1. positional drift in the middlegame in the Caro-Kann Defense: Exchange Variation (2 positions)

2 of your positional drift in the middlegame mistakes happen in this opening, averaging 138cp lost. Most-played: Nb4 ×1, Rb8 ×1. Engine prefers: O-O-O ×1, Ra8 ×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 Rb8.

Caro-Kann Defense: Exchange Variation · ply 35 · black to move · you played Rb8
Show engine choice
Engine recommends: Ra8 (your move lost Δ1.74)
drill 2 of 2

Find a better move than Nb4.

Caro-Kann Defense: Exchange Variation · ply 27 · black to move · you played Nb4
Show engine choice
Engine recommends: O-O-O (your move lost Δ1.03)

2. positional drift in the middlegame in the London System (2 positions)

2 of your positional drift in the middlegame mistakes happen in this opening, averaging 110cp lost. Most-played: Nc5 ×1, h3 ×1. Engine prefers: h6 ×1, a4 ×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 Nc5.

London System · ply 25 · black to move · you played Nc5
Show engine choice
Engine recommends: h6 (your move lost Δ1.15)
drill 2 of 2

Find a better move than h3.

London System · ply 38 · white to move · you played h3
Show engine choice
Engine recommends: a4 (your move lost Δ1.04)