Lupulescu, Constantin

ROU ROU·Born 1984·FIDE #1207822·2,624 Games

FIDE OTB · #1207822 · 2,624 Games

Classical25692,413 g Games

Rapid2524123 g Games

Blitz2548107 g Games

Play against Lupulescu's Twin

PRO

Uses their openings, level & style

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

Ready to play

2624 games analyzed

Statistics

Total

2624

Wins

1074

Draws

1212

Losses

338

41%46%13%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 94.3% average

Very consistent (88%)

Very precise: only 0.1 blunders/game

Dominates 1.f4 ♔ (92% in 12 games)

Deep Analysis

Stockfish 18 · Classical games · 559 analyzed

Accuracy by phase

Opening

97.0%

Middlegame

94.1%

Endgame

95.8%

Clutch Factor

+6%

Winning (+2)Winning (+2)

95%179g

EqualEqual position

96%263g

Losing (−2)Losing (−2)

89%58g

Accuracy under pressure

Problematic Pieces — which cause most errors?

22%

65 err

21%

61 err

16%

45 err

15%

42 err

14%

40 err

12%

36 err

Critical Moment

Move 39 avg

1-15

18%

16-25

24%

26-35

18%

36-45

35%

46+

35% of blunders after move 46 — keep the tension until then.of blunders occur in moves 46+. Keep the tension until that moment.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

b3 / e5

Critical squares

10 err

9 err

b3/e5 account for most of the errors. Force decisions in those zones.

Openings

2,624 GamesBased on 2,624 player games

Weaknesses

— exploit these— exploit these lines

aswhite42.1%Losses

King's Indian: Classical — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2

19 Games · last played 2 years agoPlay this line

No significant weaknesses detected as black

Strengths

— avoid these— avoid these lines

aswhite60.0%Wins

Caro-Kann: Advance — 1.e4 c6 2.d4 d5 3.e510 Games · last played 4 months ago

10 Games · last played 4 months ago

aswhite57.1%Wins

Sicilian: Taimanov — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc621 Games · last played 2 months ago

21 Games · last played 2 months ago

asblack46.5%Wins

Sicilian: Classical — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc699 Games · last played 3 months ago

99 Games · last played 3 months ago

asblack53.8%Wins

Reti: Gambit — 1.Nf3 d5 2.c4 e613 Games · last played last year

13 Games · last played last year

Critical Blunders

10 errors · Stockfish

#56Ne2??Endgamevs OvezdurdyyevaOTB · 2026

#44b4??Endgamevs MironescuOTB · 2026

#39a6??Tacticsvs SjugirovOTB · 2025

#55Rf5??Endgamevs KorobovOTB · 2025

#59Bxa3??Endgamevs YuffaOTB · 2025

#15Qd5??Tacticsvs VijayakumarOTB · 2025

#58Ra1??Endgamevs ManolacheOTB · 2024

#68Ke4??Endgamevs StanciuOTB · 2024

#23a5??Tacticsvs CnejevOTB · 2024

#49Kf7??Endgamevs ManolacheOTB · 2024

Recent Games

2,624 Games

Loss

Nihal Sarin(2723)

TCh-FRA Top 16 Haute 2026 · 14 Jun 2026

1-0

Win

Neiksans, Arturs(2555)

TCh-FRA Top 16 Haute 2026 · 13 Jun 2026

1-0

Draw

Mamedov, Rauf(2636)

TCh-FRA Top 16 Haute 2026 · 12 Jun 2026

½-½

Draw

Decuigniere, Tom(2417)

TCh-FRA Top 16 GpB 2026 · 10 Jun 2026

½-½

Loss

Lamard, Guillaume(2497)

TCh-FRA Top 16 GpB 2026 · 9 Jun 2026

1-0

Draw

Grandelius, Nils(2647)

TCh-FRA Top 16 GpB 2026 · 8 Jun 2026

½-½

Endgame Statistics

PRO354 endgames (50.3%)

Strongest

100%

Same-Color Bishops

Weakest

14%

Knight vs Knight

Reaches Endgame

50.3%

354 / 704

B vs N Pref

50% · 20%

18 / 10

PiecesTypeWin %Games

Rook + Minor

39.8%176

Rook+Bishop vs Rook+Knight

41.4%99

Rook vs Rook

34.7%95

Rook + Equal Minors

37.6%93

Queen vs Pieces

50%60

Rook vs Minor (Exchange)

39.2%51

Rook + Minor39.8%176

Rook+Bishop vs Rook+Knight41.4%99

Rook vs Rook34.7%95

Rook + Equal Minors37.6%93

Queen vs Pieces50%60

Rook vs Minor (Exchange)39.2%51

Weakest: Knight vs Knight 14%Show all 23 types

Unlock Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

1304 Games

47%44%9%

Move	Games	%
1.e4Strong	622	72%
1.d4	507	66%
1.Nf3Strong	84	71%
1.c4	78	64%
1.f4Strong	12	92%
1.b3Strong	1	100%

MoveGamesPerformance%

1.e4Strong

622

72%

1.d4

507

66%

1.Nf3Strong

71%

1.c4

64%

1.f4Strong

92%

1.b3Strong

100%