B
GM

Barrientos, Sergio E

COL COL·Born 1986·FIDE #4401824·896 Games

Classical2467853 Games
Rapid241421 Games
Blitz240822 Games

Play against Barrientos, Sergio E's Twin

PRO

Uses their openings, level & style

Statistics

Total

896

Wins

505

Draws

175

Losses

205
56%20%23%

Play Style

What you need to know before facing them
Elite accuracy: 93.3% average
High resilience (56%): Dangerous even when losing
Solid conversion: 85%
Very consistent (91%)
Very precise: only 0.1 blunders/game
Dominates 1.c4 ♔ (74% in 17 games)

Deep Analysis

Stockfish 18 · Classical games · 63 analyzed
Accuracy by phase
Opening
95.9%
Middlegame
93.1%
Endgame
95.9%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+4%
Winning (+2 or more)
94%39g
Equal position
93%14g
Losing (-2 or more)
90%10g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
29%
20 errors
21%
14 errors
19%
13 errors
16%
11 errors
13%
9 errors
1%
1 errors
Critical Moment — When does the first serious error occur?
Move 32 average
0%
33%
33%
33%
0%
1-15
16-25
26-35
36-45
46+
33% of blunders occur between move 16-25. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
5
6
5
Few
Many
Critical squares
g5
6 err
d3
5 err
f5
5 err
b6
3 err
c2
3 err
g5/d3 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
Sicilian: Closed — 1.e4 c5 2.Nc3 a6
9 Games · Low sample · last played 2 months agoPlay this line

Strengths

— avoid these lines
White72.7%Wins
French: Tarrasch — 1.e4 e6 2.d4 d5 3.Nd211 Games · last played 2 years ago
White66.7%Wins
Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d645 Games · last played 2 months ago
Black72.6%Wins
Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d673 Games · last played 2 months ago
Black61.5%Wins
King's Indian — 1.d4 Nf6 2.c4 g626 Games · last played 9 months ago

Critical Blunders

10 errors · Stockfish
Qxa4??vs Lopez RaygozaBlitz · 2025
f3??vs Diaz PerezOTB · 2025
d3??vs Herize GodoyOTB · 2025
gxf7+??vs Ramos ArizaOTB · 2024
Nxe5??vs MarecoOTB · 2024
Ra7??vs Espinosa VelozOTB · 2024
Qh7??vs NiemannOTB · 2024
Nf5??vs CarlsenOTB · 2023
Rxd3??vs RozmanOTB · 2023
Nb6??vs NepomniachtchiOTB · 2023

Recent Games

W
Girsh, Daniel(2318)

35th Chicago Open 2026 · 25 May 2026

0-1
D
Pyrih, Roman(2399)

35th Chicago Open 2026 · 24 May 2026

½-½
L
Xie, Bryan(2333)

35th Chicago Open 2026 · 24 May 2026

1-0
D
Kaplan, Avi Harrison(2304)

35th Chicago Open 2026 · 23 May 2026

½-½
L
Gonzalez Vidal, Yuri(2525)

Tercer Torneo Internacion... · 11 Jan 2026

0-1
D
Bruzon Batista, Lazaro(2543)

Tercer Torneo Internacion... · 10 Jan 2026

½-½

Endgame Statistics

PRO21 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
455 Games
58%19%23%
MoveGamesPerformance%
1.e4
230
68%
1.d4
197
65%
1.c4Strong
17
74%
1.Nf3
6
58%
1.a3Strong
5
100%

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