V
GM

Vazquez, Guillermo

PAR PAR·Born 1997·FIDE #3702308·1,223 Games

Classical25431,076 Games
Rapid247352 Games
Blitz254995 Games

Play against Vazquez, Guillermo's Twin

PRO

Uses their openings, level & style

Statistics

Total

1223

Wins

565

Draws

392

Losses

266
46%32%22%

Play Style

What you need to know before facing them
Elite accuracy: 93.5% average
Solid conversion: 83%
Very consistent (87%)
Very precise: only 0.1 blunders/game
Dominates 1.b3 ♔ (78% in 69 games)

Deep Analysis

Stockfish 18 · Classical games · 300 analyzed
Accuracy by phase
Opening
96.7%
Middlegame
93.6%
Endgame
94.6%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+6%
Winning (+2 or more)
95%135g
Equal position
94%113g
Losing (-2 or more)
89%52g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
23%
61 errors
22%
59 errors
18%
47 errors
17%
45 errors
11%
28 errors
9%
25 errors
Critical Moment — When does the first serious error occur?
Move 34 average
6%
22%
33%
22%
17%
1-15
16-25
26-35
36-45
46+
33% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
12
15
14
Few
Many
Critical squares
g4
15 err
f3
14 err
e4
12 err
d4
10 err
e7
10 err
g4/f3 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

No significant weaknesses detected as White

Black55.6%Loses
Slav Defense — 1.d4 d5 2.c4 c6
9 Games · Low sample · last played 4 years agoPlay this line

Strengths

— avoid these lines
White87.5%Wins
1.b3 e5 2.Bb2 Nc6 — 1.b3 e5 2.Bb2 Nc616 Games · last played 2 years ago
White81.8%Wins
1.b3 d5 2.Bb2 Bf5 — 1.b3 d5 2.Bb2 Bf511 Games · last played 3 years ago
Black53.8%Wins
1.b3 e5 2.Bb2 Nc6 — 1.b3 e5 2.Bb2 Nc613 Games · last played 2 years ago
Black48.1%Wins
Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d627 Games · last played last year

Critical Blunders

10 errors · Stockfish
Qc3??vs KaplanOTB · 2025
Kh6??vs KunkaOTB · 2024
Kg8??vs Sai Krishna G VOTB · 2024
Re3+??vs DubovOnline · 2024
Nc6??vs Mohammad Nubairshah ShaikhOTB · 2023
Qc7??vs LysyjRapid · 2023
Kf7??vs EljanovRapid · 2023
g4??vs NakamuraOTB · 2023
Qd2??vs CarlsenOTB · 2023
Qf4??vs DudaOTB · 2022

Recent Games

D
Lu, Maximillian(2395)

2025 US Masters · 30 Nov 2025

½-½
D
Liu, Eric(2390)

Round 9: Vazquez, Guiller... · 30 Nov 2025

½-½
D
Erenburg, Sergey(2466)

Round 8: Erenburg, Sergey... · 30 Nov 2025

½-½
D
Liu,Eric(2390)

US Chess Masters 2025 · 30 Nov 2025

½-½
D
Shabalov, Alexander(2478)

Round 6: Shabalov, Alexan... · 29 Nov 2025

½-½
D
Lu, Maximillian(2395)

US Chess Masters 2025 · 29 Nov 2025

½-½

Endgame Statistics

PRO23 endgame categories analyzed
Endgame Statistics
Reveal weaknesses →
Repertoire
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Move arrowsmost-played moves
Stockfish
623 Games
52%32%16%
MoveGamesPerformance%
1.e4
427
66%
1.d4Strong
80
73%
1.b3Strong
69
78%
1.Nf3
41
66%
1.c4Strong
4
88%
1.b4Weak
1
0%
1.g3Strong
1
100%

🍪 Cookies · Chess Stalker uses technical cookies (required for operation) and analytical cookies (to improve the service). Analytical cookies are optional.