D00

Queen's Pawn Game: Mason Attack

Chess diagram: Queen's Pawn Game: Mason Attack after 2. f4

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

3,193,025 games: White 50.9% / Draw 5.1% / Black 44.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
723,244723K
581,886582K
542,362542K
536,569537K
303,794304K
195,602196K
Bird Opening: Double Duck Formation 90,12090K
75,89576K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

−0.61 Black is slightly better

Best play: 2... Bf5 3. e3 e6 4. Nf3 c5 5. c4 Nc6 6. cxd5 exd5 7. Bd3

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

By rating

The stronger the players, the worse this line does for White: White scores 49% under 1400, 46% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 1.6M
1400–1799 2.3M
1800–2199 1.8M
2200 and up 47K
Masters, over the board 24

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 26, 2026

Overview

Queen's Pawn Game: Mason Attack (ECO D00, Closed & Semi-Closed Games) is a variation of the Queen's Pawn Game, reached after 1. d4 d5 2. f4 (2 moves).

In 3,193,025 rated Lichess games between players rated 1600 to 2500, White won 50.9%, Black 44.0% and 5.1% were drawn. Black's most played move here is 2…Nf6, in 23% 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 Queen's Pawn Game: Mason Attack

2…c5 scores best for Black: 49.0%, with Black winning 46.7% and White 48.6% of 304K games. The most played, 2…Nf6, scores 47.1% in 723K games, and 2…e6 scores lowest: 44.5%. Stockfish's first choice is 2…Bf5.

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

Popularity by year

The Queen's Pawn Game: Mason Attack has lost ground since 2016: 0.12% of Lichess games in 2025, down from 0.15%.

Numbers by year
YearShare of gamesGames
20160.15%52,352
20170.15%80,450
20180.14%111,072
20190.12%154,564
20200.12%347,518
20210.12%468,117
20220.12%448,313
20230.12%464,304
20240.13%454,442
20250.12%419,424
2026 (Jan–Apr)0.12%130,591

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Transpositions

Cite this page

Caissa Codex. “Queen's Pawn Game: Mason Attack (D00)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/queens-pawn-game-mason-attack