What is Mihnea Costachi's FIDE rating?

Mihnea Costachi's FIDE rating is 2459 standard, 2391 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 2,523 over-the-board games by Mihnea Costachi (755 classical, 152 rapid, 1,616 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

TitleInternational MasterFederationRomaniaBorn2000FIDE ID1217518

Classical2459

Rapid2391

Blitz2482

Games2,523

W · D · LWon · Drawn · Lost51 / 22 / 27

Peak2484Oct 2018

Rating history

2360

2400

2440

2480

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2459Rapid2391Blitz2482no games played

Accuracy by phase

96.1%Opening92.6%Middlegame95.1%Endgame

Clutch factor

Insufficient data

Play style

Elite accuracy: 93.3% average

High resilience (60%): 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)

Recent games

Coicev, Matei-Andrei(2358)

Romanian Team Championship Super... · 11 Oct 2026

1–0

Vedmediuc, Artiom(2327)

Romanian Team Championship Super... · 10 Oct 2026

1–0

Mazilu, Stefan Fabian(2133)

Romanian Team Championship Super... · 9 Oct 2026

1–0

Balla, Tamas-Kristof(2321)

Romanian Team Championship Super... · 8 Oct 2026

½–½

Soltanici, Ruslan(2245)

Romanian Team Championship Super... · 7 Oct 2026

0–1

Play against Costachi's Twin

Their real openings, level & style

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

Based on

2,523 games

Based on 2,523 games

Openings

1,273 games as White · scores 64.3%

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 2 weeks ago76.9%wins

By family

open a family to see its lines

PROTime controls · Years · Events

2,523 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 64.3%

A00–A042441y

57%1429%

63.5%—

D30–D371993w

49%30%21%

63.6%—

A45–E111332w

54%25%21%

66.5%—

A40–D0210711m

43%27%30%

56.5%−7.7 pts

E60–E70942y

51%1831%

60.1%−4.2 pts

B20–B50851y

70%723%

72.9%+8.7 pts

D10–D45692y

48%32%20%

63.8%—

D81–D90441y

36%36%28%

54.5%−9.7 pts

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

Couldn't load this.

Endgame statistics

217 endgames (55.5%) · force Opposite-Color Bishops (0%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

55.5%

217 / 391

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

56%44%

77.9%353g

R+Bishop vs R+Knight

59%41%

79.4%306g

Rook vs Minor (Exchange)

49%50%

73.7%281g

Rook vs Rook

48%50%

72.6%252g

Rook vs Two Minors

56%44%

78.1%160g

Pure Pawn

36%50%14

60.6%109g

Rook + Equal Minors77.9%353g

R+Bishop vs R+Knight79.4%306g

Rook vs Minor (Exchange)73.7%281g

Rook vs Rook72.6%252g

Rook vs Two Minors78.1%160g

Pure Pawn60.6%109g

Weak in Opposite-Color Bishops: only 0% win rate (5 games). Force this endgameShow all 14 types

Unlock Endgame Statistics

All their endgames: discover where they collapse under pressure

€4.17/mo billed yearly · or €6.99 monthly

Repertoire

PROTime controls · Years · Events

2,523 games in scope

Explore the repertoireevery move played, ranked by frequency

1,273 games53%W22%D25%L

1,273games in this linewon 53%, drew 22%, lost 25%

Move

1. d4

8192w

48%27%25%

62%

1. e4

1921y

70%23%

73%

1. ♞c3

1631y

55%1332%

61%

1. ♞f3

313y

55%26%19%

68%

1. c4

182y

61%39%

81%

1. b3

123y

67%825%

71%

1. b4

73y

57%29%14

71%

1. a3

65y

67%1716

75%

1. f4

63y

83%17

83%

1. f3

55y

20%80%

20%

1. c3

35y

100%

1. g4

25y

50%50%

50%

1. a4

25y

100%

1. e3

24y

100%

1. g3

24y

100%

1. h4

15y

100%

1. d3

15y

100%

1. ♞h3

13y

100%

50%

Scouting report: Mihnea Costachi (IM, ROU)

Mihnea Costachi

Rating history

Play style

Recent games

Play against Costachi's Twin

Openings

Weaknesses

Strengths

By family

Mistakes

Critical blunders

Endgame statistics

Repertoire