♞ Chess.ceo

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 controlCurrentPeakPeak date
Classical1,9432,079Sep 2025
Rapid2,0862,086Aug 2026
Blitz1,8981,898Aug 2026

Performance record

SplitGamesWinsDrawsLossesWin rate
Overall361161930.6%
As White1994647.4%
As Black17221311.8%

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)

MoveGamesSharePlayer score
c41052.6%60.0%
e4526.3%30.0%
Nf3210.5%75.0%
d415.3%100.0%
g315.3%100.0%

Main lines as White

As Black against 1.e4 (9 games)

MoveGamesSharePlayer score
c5555.6%10.0%
e6222.2%25.0%
e5111.1%100.0%
g6111.1%0.0%

As Black against 1.d4 (4 games)

MoveGamesSharePlayer score
d5375.0%0.0%
Nf6125.0%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

ECOOpeningGamesW/D/LWin rate
A25English Opening: Reverse Sicilian52/1/240.0%
A36Sicilian41/0/325.0%
A14English Opening32/1/066.7%
A14English Opening: Neo-Catalan20/1/10.0%
A36English Opening: Symmetrical11/0/0100.0%
C20English Opening: The Whale10/1/00.0%
E14Indian Defense11/0/0100.0%
A07Réti Opening11/0/0100.0%
A86English Opening: Dutch Defense11/0/0100.0%

Openings as Black

ECOOpeningGamesW/D/LWin rate
B33Sicilian: Sveshnikov40/1/30.0%
A45London System20/0/20.0%
C10French Defense20/1/10.0%
D35Indian Defense10/0/10.0%
E05Catalan10/0/10.0%
A05Nimzovich-Larsen attack11/0/0100.0%
A05Réti Opening: Symmetrical Defense10/0/10.0%
C70Ruy Lopez11/0/0100.0%
B22Sicilian: Alapin10/0/10.0%
B06Modern Defense10/0/10.0%

Notable wins

DateOpponentEloEventECO
Dec 2022Tello Oscar Culbeaux2,1881st Madrid Alcorcon OpenA05
Dec 2022Pedro Criado De Diego2,1021st Madrid Alcorcon OpenA36
Jul 2021Victor Tudela Gonzalez1,774ch-ESP U14A25
Feb 2026Adrian Gutierrez Castellanos1,760Campeonatos de Edades CTL 2026A36
Jul 2022Marcos Torres Rebolledo1,649ch-ESP U14A14

Top events

EventYearGamesScoreTPR
ch-ESP U12202094.51,450
1st Madrid Alcorcon Open202272.51,935
ch-ESP U142022631,780
ch-ESP U14 Rapid202240.51,207
2nd Alcorcon Diagonal Open2023321,723
Campeonatos de Edades CTL 2026202631.51,950
Campeonato de España 2026 | Sub-182026201,802
XIII Alfaro Open2024101,781
Prepare against Mario Sierra Pena — free

Interactive opening tree from all 36 games, weak-spot detection and engine analysis.

Start preparation

Frequently 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.

Similarly rated players