ecocodes
Volume C · Open games and the French Defense‹ C03C05 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

C04 French Defense: Tarrasch Variation, Guimard Defense, Main Line

C04 holds a single named line. It leaves C03 (French Defense: Tarrasch Variation, Guimard Defense) with 4.Ngf3 Nf6. Black has two minor pieces off their first squares, level for the most of the 19 French Defense codes. White, to move in that position, has 28 legal moves, the second-lowest count of the 19 French Defense codes. Black’s pieces and pawns attack six squares in White’s half, the fifth-highest count of the 19 French Defense codes.

Score sheet
#WhiteBlack
1e4e6
2d4d5
3Nd2Nc6
4Ngf3Nf6

Moves only C04 plays

Same as C03 up to 3.Nd2, then:

  1. 3...Nc6 The knight leaves b8 for c6, opening a line for the rook on a8.
  2. 4.Ngf3 The knight leaves g1 for f3, opening a line for the rook on h1, guarding the pawn on d4.
  3. 4...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.

The road to C04

  1. 1.e4 … 2...d5four earlier stops: B00, C00
  2. 3.Nd2C03 Tarrasch Variation
  3. 3...Nc6C03 Guimard Defense
  4. 4...Nf6C04

The position after 4...Nf6

White has brought out the knight on d2 and knight on f3; Black the knight on c6 and knight on f6. White could capture with exd5.

WhiteBlackMaterial (pawn units)3939Minor pieces developed22Moves spent on pawns22Pawns on d4, e4, d5, e521Squares attacked in the other half76not castlednot castled

Closest boards in other codes

CodeLineDiffers on
C05French Defense: Tarrasch Variation, Closed Variationfour squares: g1, f3, c6, b8
C09French Defense: Tarrasch Variation, Open System, Main Linesix squares: e4, c5, e6, f6, c7, g8
C11French Defense: Classical Variationsix squares: g1, d2, c3, f3, c6, b8
D05Queen’s Pawn Game: Colle Systemsix squares: b1, d2, e3, e4, c6, b8
C47Four Knights Gameseven squares: d2, c3, d4, d5, e5, e6, d7
C07French Defense: Tarrasch Variation, Open Systemeight squares: g1, f3, c5, c6, f6, c7, b8, g8
C10French Defense: Paulsen Variationeight squares: g1, d2, c3, f3, c6, f6, b8, g8

Open this line in the finderAll French Defense codes