Ibarra Jerez, Jose Carlos

ESP ESP·Born 1985·FIDE #2226332

2533Classical

2528Rapid

2535Blitz

Statistics

Total4,685

Wins2,708

Draws852

Losses1,124

58%18%24%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 92.5% average

High resilience (59%): Dangerous even when losing

Solid conversion: 90%

Very consistent (89%)

Very precise: only 0.2 blunders/game

Dominates 1.Nc3 as

(80% in 10 games)

Vulnerable to 1.a3

(only 45%)

Play against Ibarra Jerez's Twin

Uses their openings, level & style

Practice against a bot that uses their real openings and playing style

Ready to play

4,685 games analyzed

Deep Analysis

Stockfish 18 · Classical · 508 analyzedStockfish 18 · Classical games · 508 analyzed

Accuracy by phase

Opening

95.9%

Middlegame

92.2%

Endgame

94.2%

Clutch Factor

+4%

Winning (+2)Winning (+2)

94%181g

EqualEqual position

94%143g

Losing (−2)Losing (−2)

90%167g

Accuracy under pressure

Problematic Pieces — which cause most errors?

23%

172 err

19%

145 err

17%

126 err

15%

111 err

15%

116 err

11%

85 err

Critical Moment

Move 44 avg

1-15

10%

16-25

22%

26-35

29%

36-45

36%

46+

36% of blunders occur after move 46 — keep tension until then.of blunders occur after move 46 — keep tension until then.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

227

Hotspot zone

f5 / e5

Critical squares

30 err

29 err

27 err

23 err

f5/e5 concentrate most errors. Force decisions in those zones.

Openings

4,685 gamesBased on 4,685 player games

Weaknesses

— exploit these— exploit these lines

aswhite56.5%losses

Reti: KIA — 1.Nf3 d5 2.g3 Nf6

23 games · last played 10 months agoPlay this line

No significant weaknesses detected as black

Strengths

— avoid these— avoid these lines

aswhite59.1%wins

Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d6235 g235 games · last played last month

aswhite76.5%wins

Pirc Defense — 1.e4 d6 2.d4 Nf651 g51 games · last played 2 months ago

asblack63.5%wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e6288 g288 games · last played last month

asblack75.0%wins

London System — 1.d4 Nf6 2.Bf4 g612 g12 games · last played 5 months ago

Critical Blunders

10 errors · Stockfish

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#59Nf6??Endgamevs MaghsoodlooOTB · 2026

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#43a3??Endgamevs MaghsoodlooOTB · 2026