Scouting report: Yuniesky Quesada Perez (GM, USA)

1,575 over-the-board games in the Chess Stalker database (1,433 classical, 18 rapid, 124 blitz): 47% wins, 33% draws, 20% losses. FIDE rating 2591 standard, 2625 rapid, 2589 blitz. 155 games analyzed with Stockfish: 93% accuracy, 0.14 blunders per game.

  • Opening repertoire of Yuniesky Quesada Perez 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 Yuniesky Quesada Perez's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/3504409 — no account needed.

Yuniesky Quesada Perez

GM

United Statesborn 1984FIDE ID 3504409

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2560
2600
2640
2591 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2625
2591
2589
2655peak, Jul 2014
1,575games
741wins, 47%
514draws, 33%
320losses, 20%

Play style

before facing them
Elite accuracy: 92.7% average
Solid conversion: 83%
Very consistent (83%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 as ♔ (69% in 753 games)
Vulnerable to 1.c4 ♚ (only 48%)

Play against Quesada Perez's Twin

Their real openings, level & style

Based on 1,575 games

Openings

1,575 games

Weaknesses

where they slip as ♔ White

No significant weaknesses detected as white

Strengths

what holds up for them as ♔ White
Caro-Kann: Advance1.e4 c6 2.d4 d5 3.e548 games, last played 8 months ago75.0%wins
Pirc Defense1.e4 d6 2.d4 f613 games, last played 4 years ago76.9%wins

Deep analysis

Stockfish · Classical · 155 analyzed
Accuracy by phase
Opening
96.8%
Middlegame
93.1%
Endgame
94.0%
Clutch factor
+5%
Winning (+2)
93%
Equal
95%
Losing (−2)
88%
Problematic pieces
19%
35 err
18%
34 err
18%
34 err
17%
33 err
14%
27 err
14%
26 err
Critical moment
Move 41 avg
0%
1-15
13%
16-25
27%
26-35
33%
36-45
27%
46+
33% of blunders occur after move 36-45. Keep tension until then.
Error heatmap · Critical squares
7
8
Few
Many
e5
8
g6
7
d2
6
d5
6
e4
6
e5/g6 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors
#40
b3?? vs Nakamura
Endgame · OTB · 2026
#41
a5?? vs Martinez Alcantara
Endgame · OTB · 2026
#41
e8?? vs Nakamura
Endgame · OTB · 2026
#39
d3?? vs Grischuk
Middlegame · OTB · 2026
#30
b5?? vs Bulgak
Endgame · OTB · 2025
#41
h5?? vs Gunawardhana
Endgame · OTB · 2025

Recent games

Deveci, Huseyin Said(2238)

Titled Tue 20th Jan 2026 · 20 Jan 2026

1–0
Svane, Rasmus(2612)

Titled Tue 20th Jan 2026 · 20 Jan 2026

0–1
Nurgaliyeva, Zarina(2286)

Titled Tue 20th Jan 2026 · 20 Jan 2026

1–0
Nakamura, Hikaru(2810)

Titled Tue 20th Jan 2026 · 20 Jan 2026

0–1
Hnatyshyn, Anastasiia(2164)

Titled Tue 20th Jan 2026 · 20 Jan 2026

1–0
Vaibhav,S(2569)

Titled Tue 20th Jan 2026 · 20 Jan 2026

0–1

Endgame statistics

Repertoire

PRO
1,575 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
796 games54%W30%D16%L
Move
1. e4
7538m
53%31%16
69%
1. d4
279m
59%26%15
72%
1. f3
1124y
64%27%
68%
1. c4
515y
40%60%
70%

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