C57

Italian Game: Two Knights Defense, Kloss Gambit

Chess diagram: Italian Game: Two Knights Defense, Kloss Gambit after 5…Nb4

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

Play any move on the board to explore from there, or step through the line with ‹ › and the arrow keys.

Statistics from Lichess

19,439 games: White 49.9% / Draw 3.7% / Black 46.3%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
7,8577,857
3,4273,427
1,9921,992
1,4581,458
1,2621,262
1,2621,262
586586
436436

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 11, 2026

Engine evaluation

+0.65 White is slightly better

Best play: 6. d6 Nbd5 7. dxc7 Qxc7 8. d3 Be7 9. O-O O-O 10. Ne4 Nxe4

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Italian Game: Two Knights Defense, Kloss Gambit (ECO C57, Open Games) is a gambit in the Italian Game: Two Knights Defense, Knight Attack, Normal Variation, reached after 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nb4 (5 moves).

In 19,439 rated Lichess games between players rated 1600 to 2500, White won 49.9%, Black 46.3% and 3.7% were drawn. White's most played move here is 6. d6, in 40% of those games.

Written from the Lichess opening list and explorer. Know this line well? Write about it.

Write a description or report a mistake
What would you like to send?

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

How to play against the Italian Game: Two Knights Defense, Kloss Gambit

6. Nc3 scores best for White: 61.3%, with White winning 59.6% and Black 37.0% of 1,992 games. The most played, 6. d6, scores 52.6% in 7,857 games, and 6. Bb5+ scores lowest: 47.1%. Stockfish's first choice is 6. d6.

Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Cite this page

Caissa Codex. “Italian Game: Two Knights Defense, Kloss Gambit (C57)”. Lichess data as of 11 Nov 2026. https://chesscodex.org/openings/italian-game-two-knights-defense-kloss-gambit