Scouting report: Mario Villanueva (IM, ARG)

601 over-the-board games in the Chess Stalker database (579 classical, 11 rapid, 11 blitz): 41% wins, 39% draws, 20% losses. FIDE rating 2463 standard, 2427 rapid, 2358 blitz. 194 games analyzed with Stockfish: 94% accuracy, 0.05 blunders per game.

  • Opening repertoire of Mario Villanueva as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Mario Villanueva's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/113433 — no account needed.

Chess Stalker

Mario Villanueva

IM

Argentinaborn 1984FIDE ID 113433

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2340
2380
2420
2460
2500
2468 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2463
2427
2358
2496peak, Oct 2018
601games
249wins, 41%
232draws, 39%
119losses, 20%

Play style

before facing them
Elite accuracy: 93.8% average
High resilience (59%): Dangerous even when losing
Solid conversion: 85%
Very consistent (87%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 as ♔ (68% in 286 games)
Vulnerable to 1.Nf3 ♚ (only 45%)

Play against Villanueva's Twin

Their real openings, level & style

Based on 601 games

Openings

601 games

Weaknesses

where they slip as ♔ White
Italian: Giuoco Piano1.e4 e5 2.♞f3 ♞c6 3.♝c4 ♝c512 games, last played 5 months ago41.7%losses

Strengths

what holds up for them as ♔ White
Ruy Lopez: Closed1.e4 e5 2.♞f3 ♞c6 3.♝b5 a6 4.♝a4 ♞f6 5.O-O ♝e720 games, last played 3 years ago65.0%wins
Caro-Kann: Advance1.e4 c6 2.d4 d5 3.e513 games, last played 4 months ago61.5%wins

Deep analysis

Stockfish · Classical · 194 analyzed
Accuracy by phase
Opening
97.1%
Middlegame
93.9%
Endgame
95.4%
Clutch factor
+5%
Winning (+2)
95%
Equal
94%
Losing (−2)
90%
Problematic pieces
21%
28 err
19%
26 err
16%
22 err
16%
21 err
16%
22 err
11%
15 err
Critical moment
Move 36 avg
0%
1-15
0%
16-25
71%
26-35
0%
36-45
29%
46+
71% of blunders occur after move 26-35. Keep tension until then.
Error heatmap · Critical squares
5
5
6
6
5
6
5
6
Few
Many
d5
6
f1
6
f4
6
f5
6
d4
5
d5/f1 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors
#51
♛h6?? vs Villca
Endgame · OTB · 2025
#26
♛a6?? vs Gomez
Middlegame · OTB · 2025
#20
♝xf5?? vs Tristan
Middlegame · OTB · 2025
#30
♛e1?? vs Flores Quillas
Middlegame · OTB · 2025
#36
♞a3?? vs Lima
Middlegame · OTB · 2025
#29
♛b7?? vs Matsuura
Middlegame · OTB · 2025

Recent games

Tomasi, Albert(2328)

4th Buenos Aires Open · 25 May 2026

1–0
Vasquez Schroeder, Rodrigo(2453)

4th Buenos Aires Open · 24 May 2026

0–1
Mendez, Ernesto(2293)

4th Buenos Aires Open · 23 May 2026

1–0
Jardim, Frederico Rodrigues(2321)

4th Buenos Aires Open · 23 May 2026

1–0
Bazan Romero, Octavio Aaron(2301)

4th Buenos Aires Open · 22 May 2026

½–½
Aguinaga, Maximiliano(2205)

4th Buenos Aires Open · 21 May 2026

1–0

Endgame statistics

Repertoire

PRO
601 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
308 games50%W33%D17%L
Move
1. e4
2874m
51%33%16
67%
1. d4
219y
33%38%29%
52%

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