Ulko, Jaroslav

RUS RUS·Born 1973·FIDE #4116658·905 Games

FIDE OTB · #4116658 · 905 Games

Classical2437873 g Games

Rapid231310 g Games

Blitz233722 g Games

Play against Ulko's Twin

PRO

Uses their openings, level & style

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

Ready to play

905 games analyzed

Statistics

Total

905

Wins

403

Draws

242

Losses

260

45%27%29%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 90.7% average

Very precise: only 0.1 blunders/game

Dominates 1.d4 ♔ (64% in 401 games)

Vulnerable to 1.Nf3 ♚ (only 45%)

Deep Analysis

Stockfish 18 · Classical games · 25 analyzed

Accuracy by phase

Opening

95.5%

Middlegame

92.0%

Endgame

95.4%

Clutch Factor

+12%

Winning (+2)Winning (+2)

95%9g

EqualEqual position

95%8g

Losing (−2)Losing (−2)

83%8g

Accuracy under pressure

Problematic Pieces — which cause most errors?

28%

9 err

22%

7 err

22%

7 err

16%

5 err

3 err

1 err

Critical Moment

Move 32 avg

1-15

16-25

100%

26-35

36-45

46+

100% of blunders after move 26-35 — keep the tension until then.of blunders occur in moves 26-35. Keep the tension until that moment.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

d6 / b6

Critical squares

3 err

2 err

d6/b6 account for most of the errors. Force decisions in those zones.

Openings

905 GamesBased on 905 player games

Weaknesses

— exploit these— exploit these lines

No significant weaknesses detected as white

asblack72.7%Losses

Reti vs King's Indian — 1.Nf3 Nf6 2.c4 g6

11 Games · last played 5 years agoPlay this line

Strengths

— avoid these— avoid these lines

aswhite62.1%Wins

Nimzo-Indian: Rubinstein — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e329 Games · last played 5 years ago

29 Games · last played 5 years ago

aswhite56.8%Wins

Slav: Semi-Slav — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc344 Games · last played 5 years ago

44 Games · last played 5 years ago

asblack49.1%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e657 Games · last played 5 years ago

57 Games · last played 5 years ago

Critical Blunders

6 errors · Stockfish

#27Rf3??Tacticsvs RustemovBlitz · 2021

#33Qg5+??Tacticsvs MatveevaBlitz · 2021

#30Nec4??Tacticsvs Lopez Del AlamoBlitz · 2021

#44Kd7??Endgamevs PadminiOTB · 2019

#34R1d6??Tacticsvs AbdisalimovOTB · 2019

#58Nh4??Endgamevs GrischukBlitz · 2013