Mieses Opening: Reversed Rat
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Statistics from Lichess
2,387,707 games: White 47.0% / Draw 4.3% / Black 48.7%
| Next move | Games | White / Draw / BlackW / D / B |
|---|---|---|
| King's Pawn Game: Leonardis Variation | 710,383710K | |
| 315,591316K | ||
| 295,866296K | ||
| 253,173253K | ||
| Valencia Opening | 186,676187K | |
| 181,243181K | ||
| 76,17876K | ||
| 60,61461K |
Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026
Engine evaluation
+0.07 The position is about equal
Best play: 2. c4 Nf6 3. Nf3 Nc6 4. Nc3 d5 5. cxd5 Nxd5 6. g3 Be7
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 Black: Black scores 53% under 1400, 50% at 2200 and up (wins plus half the draws).
| Players | Games | White / Draw / BlackW / D / B |
|---|---|---|
| Under 1400 | 3.5M | |
| 1400–1799 | 2.8M | |
| 1800–2199 | 1.1M | |
| 2200 and up | 84K | |
| Masters, over the board | 122 |
Master games
- Nakamura, H. – So, W.
- Cordova, E. – Bartel, M.
- Kadric, D. – Zelcic, R.
- Kadric, D. – Yankelevich, L.
- Vovk, Y. – Sammour Hasbun, J. E.
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
Mieses Opening: Reversed Rat (ECO A00, Flank Openings) is a variation of the Mieses Opening, reached after 1. d3 e5 (1 move).
In 2,387,707 rated Lichess games between players rated 1600 to 2500, White won 47.0%, Black 48.7% and 4.3% were drawn. White's most played move here is 2. e4, in 30% of those games.
It continues into one named variation, Valencia Opening.
Written from the Lichess opening list and explorer. Know this line well? Write about it.
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How to play against the Mieses Opening: Reversed Rat
2. Nd2 (Valencia Opening) scores best for White: 52.6%, with White winning 50.6% and Black 45.4% of 187K games. The most played answer, 2. e4, scores lowest: 48.1% in 710K games. Stockfish's first choice is 2. c4.
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
Popularity by year
The Mieses Opening: Reversed Rat dipped to 0.079% of Lichess games in 2018 and has recovered since: 0.094% in 2025.
Numbers by year
| Year | Share of games | Games |
|---|---|---|
| 2016 | 0.093% | 33,056 |
| 2017 | 0.081% | 44,645 |
| 2018 | 0.079% | 62,252 |
| 2019 | 0.085% | 105,933 |
| 2020 | 0.085% | 248,397 |
| 2021 | 0.094% | 366,988 |
| 2022 | 0.097% | 364,301 |
| 2023 | 0.094% | 354,141 |
| 2024 | 0.095% | 340,666 |
| 2025 | 0.094% | 325,540 |
| 2026 (Jan–Apr) | 0.095% | 103,676 |
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
Variations (1)
Transpositions
Cite this page
Caissa Codex. “Mieses Opening: Reversed Rat (A00)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/mieses-opening-reversed-rat