What is Mihnea Costachi's FIDE rating?

Mihnea Costachi's FIDE rating is 2459 standard, 2385 rapid, 2482 blitz. Chess Stalker tracks it together with Mihnea Costachi's over-the-board games and opening repertoire.

How many OTB games has Mihnea Costachi played?

The Chess Stalker database holds 2,514 over-the-board games by Mihnea Costachi (2,264 classical, 134 rapid, 137 blitz), with 51% wins. The full list, with openings and results, is on Mihnea Costachi's Chess Stalker profile.

How do I prepare against Mihnea Costachi?

Open Mihnea Costachi's free Chess Stalker report: opening repertoire with results per line as White and Black, recurring weaknesses and blunder patterns evaluated with Stockfish, and recent games. Then rehearse against the Twin Bot, which imitates Mihnea Costachi's style, before facing them.

Mihnea Costachi

Romaniaborn 2000FIDE ID 1217518

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026

2360

2400

2440

2480

2476 · Sep 2023

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Sep 2023Oct 2026

2482Blitz

2459Classical

2385Rapid

2484peak, Oct 2018

2,514games

1,293wins, 51%

550draws, 22%

670losses, 27%

Rated gamesInactive · rating frozenOfficial FIDE lists · drag the range below the chartPeak 2484 · Oct 2018

Play style

before facing themWhat you need to know before facing them

Elite accuracy: 93.3% average

High resilience (61%): Dangerous even when losing

Solid conversion: 88%

Very consistent (92%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 as

(73% in 191 games)

Play against Costachi's Twin

Their real openings, level & style

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

Based on

2,514 games

Based on 2,514 games

Openings

2,514 gamesBased on 2,514 player games

Weaknesses

where they slip as ♔ White

1.♞c3 d5 2.d4 ♞f61.♞c3 d5 2.d4 ♞f653 games, last played last year43.4%losses

London System1.♞c3 d5 2.d4 ♞f6 3.♝f453 games, last played last year43.4%losses

Strengths

what holds up for them as ♔ White

1.♞c3 ♞f6 2.e4 e51.♞c3 ♞f6 2.e4 e515 games, last played last year80.0%wins

Italian: Giuoco Piano1.e4 e5 2.♞f3 ♞c6 3.♝c4 ♝c513 games, last played 10 months ago76.9%wins

Deep analysis

Stockfish · Classical · 215 analyzedStockfish · Classical games · 215 analyzed

Accuracy by phase

Opening

96.1%

Middlegame

92.6%

Endgame

95.1%

Clutch factor

+4%

Winning (+2)Winning (+2)

94%93g

EqualEqual position

95%75g

Losing (−2)Losing (−2)

90%47g

Accuracy under pressure barely drops when losing.

Problematic pieces

22%

49 err

21%

47 err

18%

40 err

17%

37 err

16%

35 err

16 err

Critical moment

Move 47 avg

1-15

16-25

21%

26-35

29%

36-45

43%

46+

43% of blunders occur after move 46. Keep tension until then.of blunders occur after move 46. Keep tension until then.

Error heatmap · Critical squaresError heatmap

Few

Many

74Errors mapped

d6 / d4Hotspot zone

Critical squares

1010 err

99 err

88 err

77 err

d6/d4 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors · Stockfish

#23

♝d5?? vs Kukelko

Middlegame · OTB · 2025

#96

♜c8+?? vs Plat

Endgame · OTB · 2025

#36

♜d6?? vs Wojtaszek

Endgame · OTB · 2025

#32

♛e7?? vs Cruz de la Osa

Middlegame · Rapid · 2025

#68

h2?? vs David

Endgame · Rapid · 2025

#52

fxe4?? vs Nakamura

Endgame · OTB · 2025