Prepare against Mario Sierra Pena
Spain · World #38,323 classical · FIDE ID 24579122
Our database contains 36 games by Mario Sierra Pena, covering Aug 2017 to Aug 2026. Below you'll find Mario Sierra Pena's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Mario Sierra Pena before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,943 | 2,079 | Sep 2025 |
| Rapid | 2,086 | 2,086 | Aug 2026 |
| Blitz | 1,898 | 1,898 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 36 | 11 | 6 | 19 | 30.6% |
| As White | 19 | 9 | 4 | 6 | 47.4% |
| As Black | 17 | 2 | 2 | 13 | 11.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Mario Sierra Pena's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Mario Sierra Pena's side.
First moves as White (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 10 | 52.6% | 60.0% |
| e4 | 5 | 26.3% | 30.0% |
| Nf3 | 2 | 10.5% | 75.0% |
| d4 | 1 | 5.3% | 100.0% |
| g3 | 1 | 5.3% | 100.0% |
Main lines as White
- 1.c4 — 53% of White games, 60.0% score
- …e5 (40% of these games) — Pena usually continues Nc3 (62.5% score)
- …e6 (20% of these games) — Pena usually continues Nf3 (25.0% score)
- …c5 (10% of these games) — Pena usually continues Nc3 (100.0% score)
- 1.e4 — 26% of White games, 30.0% score
- …c5 (80% of these games) — Pena usually continues c4 (33.3% score)
- …e5 (20% of these games) — Pena usually continues c4 (50.0% score)
As Black against 1.e4 (9 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 5 | 55.6% | 10.0% |
| e6 | 2 | 22.2% | 25.0% |
| e5 | 1 | 11.1% | 100.0% |
| g6 | 1 | 11.1% | 0.0% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 3 | 75.0% | 0.0% |
| Nf6 | 1 | 25.0% | 0.0% |
Mario Sierra Pena's chess games
All 36 games by Mario Sierra Pena in the Chess.ceo database (Aug 2017 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 11 wins, 6 draws, 19 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A25 | English Opening: Reverse Sicilian | 5 | 2/1/2 | 40.0% |
| A36 | Sicilian | 4 | 1/0/3 | 25.0% |
| A14 | English Opening | 3 | 2/1/0 | 66.7% |
| A14 | English Opening: Neo-Catalan | 2 | 0/1/1 | 0.0% |
| A36 | English Opening: Symmetrical | 1 | 1/0/0 | 100.0% |
| C20 | English Opening: The Whale | 1 | 0/1/0 | 0.0% |
| E14 | Indian Defense | 1 | 1/0/0 | 100.0% |
| A07 | Réti Opening | 1 | 1/0/0 | 100.0% |
| A86 | English Opening: Dutch Defense | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B33 | Sicilian: Sveshnikov | 4 | 0/1/3 | 0.0% |
| A45 | London System | 2 | 0/0/2 | 0.0% |
| C10 | French Defense | 2 | 0/1/1 | 0.0% |
| D35 | Indian Defense | 1 | 0/0/1 | 0.0% |
| E05 | Catalan | 1 | 0/0/1 | 0.0% |
| A05 | Nimzovich-Larsen attack | 1 | 1/0/0 | 100.0% |
| A05 | Réti Opening: Symmetrical Defense | 1 | 0/0/1 | 0.0% |
| C70 | Ruy Lopez | 1 | 1/0/0 | 100.0% |
| B22 | Sicilian: Alapin | 1 | 0/0/1 | 0.0% |
| B06 | Modern Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Dec 2022 | Tello Oscar Culbeaux | 2,188 | 1st Madrid Alcorcon Open | A05 |
| Dec 2022 | Pedro Criado De Diego | 2,102 | 1st Madrid Alcorcon Open | A36 |
| Jul 2021 | Victor Tudela Gonzalez | 1,774 | ch-ESP U14 | A25 |
| Feb 2026 | Adrian Gutierrez Castellanos | 1,760 | Campeonatos de Edades CTL 2026 | A36 |
| Jul 2022 | Marcos Torres Rebolledo | 1,649 | ch-ESP U14 | A14 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-ESP U12 | 2020 | 9 | 4.5 | 1,450 |
| 1st Madrid Alcorcon Open | 2022 | 7 | 2.5 | 1,935 |
| ch-ESP U14 | 2022 | 6 | 3 | 1,780 |
| ch-ESP U14 Rapid | 2022 | 4 | 0.5 | 1,207 |
| 2nd Alcorcon Diagonal Open | 2023 | 3 | 2 | 1,723 |
| Campeonatos de Edades CTL 2026 | 2026 | 3 | 1.5 | 1,950 |
| Campeonato de España 2026 | Sub-18 | 2026 | 2 | 0 | 1,802 |
| XIII Alfaro Open | 2024 | 1 | 0 | 1,781 |
Interactive opening tree from all 36 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Mario Sierra Pena's chess games?
36 games by Mario Sierra Pena, from Aug 2017 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Mario Sierra Pena has played.
What does Mario Sierra Pena play on the first move as White?
Across 19 games with White in our database, Mario Sierra Pena opens with 1.c4 (53% of games), 1.e4 (26% of games), 1.Nf3 (11% of games). Against 1.e4 as Black, Mario Sierra Pena answers 1...c5 (56% of games), 1...e6 (22% of games), 1...e5 (11% of games). Against 1.d4: 1...d5 (75% of games), 1...Nf6 (25% of games).
What openings does Mario Sierra Pena play as White?
As White, Mario Sierra Pena's most-played openings in our database are: English Opening: Reverse Sicilian (5 games, 40.0% win rate); Sicilian (4 games, 25.0% win rate); English Opening (3 games, 66.7% win rate). The full breakdown of 19 games with White is in the table above.
What openings does Mario Sierra Pena play as Black?
As Black, Mario Sierra Pena most often plays: Sicilian: Sveshnikov (4 games, 0.0% win rate); London System (2 games, 0.0% win rate); French Defense (2 games, 0.0% win rate). See the table above for the top ten Black openings across 17 games.
What is Mario Sierra Pena's FIDE rating?
Mario Sierra Pena is currently rated 1,943 in classical chess, 2,086 in rapid and 1,898 in blitz. Peak classical rating: 2,079 (Sep 2025).
How many games has Mario Sierra Pena played?
Our database contains 36 games by Mario Sierra Pena, covering Aug 2017 to Aug 2026. Overall record: 11 wins, 6 draws, 19 losses (30.6% win rate).
How do I prepare against Mario Sierra Pena?
36 games by Mario Sierra Pena reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.