ecocodes
Volume D · Closed and semi-closed games‹ D80D82 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

D81 Grünfeld Defense: Russian Variation, Accelerated Variation

D81 holds a single named line. It leaves D80 (Grünfeld Defense) with 4.Qb3. That final move, by the queen, guards the pawn on c4. Of all other reference positions, the board of D82 (Brinckmann Attack) comes closest, four squares apart.

Score sheet
#WhiteBlack
1d4Nf6
2c4g6
3Nc3d5
4Qb3

The road to D81

  1. 1.d4 … 2...g6four earlier stops: A40, A45, A50, E60
  2. 3.Nc3E61 King’s Indian Defense
  3. 3...d5D80 Grünfeld Defense
  4. 4.Qb3D81

The position after 4.Qb3

White has brought out the knight on c3; Black the knight on f6. Black could capture with dxc4. Black is to move and has 31 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed11Moves spent on pawns22Pawns on d4, e4, d5, e511Squares attacked in the other half84not castlednot castled

Closest boards in other codes

CodeLineDiffers on
D90Grünfeld Defense: Three Knights Variationfour squares: d1, g1, b3, f3
D96Grünfeld Defense: Russian Variationfour squares: g1, f3, g7, f8
E61King’s Indian Defensefour squares: d1, b3, d5, d7
D85Grünfeld Defense: Exchange Variationfive squares: d1, b3, c4, d5, f6
D35Queen’s Gambit Declined: Normal Defensesix squares: d1, b3, e6, g6, e7, g7
D70Neo-Grünfeld Defense: Goglidze Attacksix squares: b1, d1, f2, b3, c3, f3
E60Indian Defense: West Indian Defensesix squares: b1, d1, b3, c3, d5, d7

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