Chess Openings Lab
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Caro-Kann Defense: Endgame Variation

The Endgame Variation arises after 3...dxe4 4.dxe4 Qxd1+ 5.Kxd1, a queenless position on move five. White's king sits on d1 and must stay safe without castling, while Black wants to develop quickly and use the half-open d-file and good piece squares.

Moves
1.e4 c6 2.Nf3 d5 3.d3 dxe4 4.dxe4 Qxd1+ 5.Kxd1
ECO
B10
Engine
+0.14 · level (Stockfish 17.1, depth 20)
Played
611 games in our lichess sample
White scores
50.5%

Key ideas for both sides

White

  • Play Nbd2 and Bc4, then a4 and a5 to gain queenside space, as the first engine line shows.
  • Reroute the knight with Ne1 and Nd3, then f3 and c3 to build a solid pawn shell around e4.
  • Walk the king to e2 once the bishops leave f1, so it guards the center in the endgame.

Black

  • Develop with ...Nf6 and a fianchetto with ...g6 and ...Bg7, aiming at White's queenside.
  • Pin and trade with ...Bg4 and ...Bxe2+ if White puts the bishop on e2.
  • Bring a rook to the d-file after ...Nbd7 to press against the d2 square and White's king.
  • Use ...e5 to fix e4 and claim space, keeping the c6 pawn as a solid base.

Plans and pawn structure

With queens gone, the king is a strong piece. White's king sits on d1 and often goes to e2 or c2, while Black can castle or keep the king in the middle. White's e4 pawn gives a small space edge, and plans include a4-a5, Bc4, Ne1-d3 and f3 to block in Black's bishops. Black aims for activity: ...Nf6, ...g6 and ...Bg7, rooks on the d-file and ...e5 or ...Bg4 to trade White's good pieces.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.14: level. Its three top choices for Black:

  1. +0.14 5...Nf6 6.Nbd2 g6 7.Bc4 Bg7 8.a4
  2. +0.16 5...g6 6.Ne1 Bg7 7.Nd3 Nf6 8.f3
  3. +0.21 5...Bg4 6.Nd2 g6 7.Be2 Nf6 8.Ne1

Pawns, from White's side.

How it scores on lichess

611 rated lichess games reached this position; White scored 50.5%.

under 120047.0%
1200–159940.5%
1600–199950.0%
2000 and up64.5%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

How to play against it

As Black, develop fast and put a rook on the d-file before White coordinates. Do not let White grab queenside space with a4-a5 unanswered. As White, do not rush. Keep the king central and steady, and play for small structural gains rather than tactics.

Questions

What are the moves of the Caro-Kann Defense: Endgame Variation?

The Caro-Kann Defense: Endgame Variation starts 1.e4 c6 2.Nf3 d5 3.d3 dxe4 4.dxe4 Qxd1+ 5.Kxd1. Its ECO code is B10.

Is the Caro-Kann Defense: Endgame Variation good for White?

Stockfish 17.1 rates the position +0.14 at depth 20, which is level. In 611 lichess games from our sample, White scored 50.5%. A low-risk line for patient players who enjoy endgame technique; strong White players have done well in the sample, so Black must play actively.

What is the main idea of the Caro-Kann Defense: Endgame Variation?

The queens come off by move five, so the game is about piece activity and small pawn edges. White plays for space with e4 and a4-a5, while Black develops and uses the open d-file.

What should Black play next?

The engine's first choice is Nf6, with g6 and Bg4 close behind. 5...Nf6 develops and hits the e4 pawn, which White covers with Nbd2.

Updated October 2026. Sources and method.