Player profile

Costachi, Mihnea

Standard: 2440 Rapid: 2391 Blitz: 2482 (last updated 2026-11-02)

FIDE ID: 1217518 (view FIDE profile)

Federation: ROU Sex: M Birth Year: 2000 Age: 26

Title: IM Women's title: — Other title: NA FOA title: —

Games: 170 Wins: 81 (48%) Draws: 51 (30%) Losses: 38 (22%)

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Dossier

167 of 170 games analyzed.

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Openings

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As White 77 games 36W 22D 19L

Queen's Gambit Declined 19 games 6W 9D 4L

Barmen Variation 5 games 1W 2D 2L

(unspecified) 5 games 1W 2D 2L

Three Knights Variation 3 games 2W 1D 0L

(unspecified) 3 games 2W 1D 0L

Exchange Variation 3 games 1W 2D 0L

Reshevsky Variation 2 games 1W 1D 0L

Positional Variation 1 game 0W 1D 0L

Ragozin Defense 2 games 0W 1D 1L

(unspecified) 2 games 0W 1D 1L

Vienna Variation 2 games 0W 1D 1L

Quiet Variation 2 games 0W 1D 1L

Semi-Tarrasch Defense 2 games 0W 2D 0L

Exchange Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Janowski Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Tartakower Defense 1 game 1W 0D 0L

Exchange Variation 1 game 1W 0D 0L

Bogo-Indian Defense 7 games 3W 1D 3L

Wade-Smyslov Variation 3 games 0W 0D 3L

(unspecified) 3 games 0W 0D 3L

Nimzowitsch Variation 3 games 3W 0D 0L

(unspecified) 3 games 3W 0D 0L

Retreat Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Queen's Indian Defense 6 games 4W 1D 1L

Fianchetto Variation 4 games 2W 1D 1L

Kramnik Variation 3 games 2W 1D 0L

Nimzowitsch Variation 1 game 0W 0D 1L

Classical Variation 1 game 1W 0D 0L

Polugaevsky Gambit 1 game 1W 0D 0L

Yates Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Semi-Slav Defense 6 games 4W 0D 2L

Stoltz Variation 3 games 3W 0D 0L

Shabalov Attack 3 games 3W 0D 0L

(unspecified) 3 games 1W 0D 2L

? 5 games 2W 1D 2L

(unspecified) 5 games 2W 1D 2L

Queen's Gambit Accepted 4 games 2W 1D 1L

Classical Defense 3 games 2W 1D 0L

Steinitz Variation, Exchange Variation 2 games 1W 1D 0L

Alekhine System, Main Line 1 game 1W 0D 0L

Winawer Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

King's Indian Defense 4 games 1W 1D 2L

Averbakh Variation 4 games 1W 1D 2L

Main Line 3 games 0W 1D 2L

Flexible Defense 1 game 1W 0D 0L

Rapport-Jobava System 3 games 1W 2D 0L

(unspecified) 3 games 1W 2D 0L

Slav Defense 3 games 2W 1D 0L

Schlechter Variation 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Chebanenko Variation 1 game 0W 1D 0L

Advance System 1 game 0W 1D 0L

Indian Defense 2 games 1W 0D 1L

Anti-Nimzo-Indian 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Queen's Pawn Game 2 games 2W 0D 0L

Modern Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Chigorin Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Rapport-Jobava System, with e6 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

Tarrasch Defense 2 games 1W 0D 1L

Schara Gambit 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Dubov Tarrasch 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Van Geet Opening 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Neo-Grünfeld Defense 1 game 0W 1D 0L

Classical Variation 1 game 0W 1D 0L

Original Defense 1 game 0W 1D 0L

Pirc Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Old Indian Defense 1 game 1W 0D 0L

Normal Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Grünfeld Defense 1 game 0W 1D 0L

Exchange Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Philidor Defense 1 game 0W 1D 0L

Lion Variation 1 game 0W 1D 0L

Shirov Gambit 1 game 0W 1D 0L

Bishop's Opening 1 game 1W 0D 0L

Vienna Hybrid 1 game 1W 0D 0L

Spielmann Attack 1 game 1W 0D 0L

Italian Game 1 game 1W 0D 0L

Evans Gambit 1 game 1W 0D 0L

Mieses Defense 1 game 1W 0D 0L

Mexican Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Vienna Game 1 game 1W 0D 0L

Stanley Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Caro-Kann Defense 1 game 0W 1D 0L

Panov Attack 1 game 0W 1D 0L

Main Line 1 game 0W 1D 0L

As Black 79 games 38W 26D 15L

King's Indian Defense 16 games 10W 4D 2L

Fianchetto Variation 4 games 1W 3D 0L

Lesser Simagin (Spassky) 3 games 1W 2D 0L

Classical Main Line 1 game 0W 1D 0L

Kazakh Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Smyslov Variation 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Kramer Variation 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Averbakh Variation 1 game 0W 0D 1L

Modern Defense 1 game 0W 0D 1L

Semi-Averbakh System 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Makogonov Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Karpov System 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Orthodox Variation 1 game 1W 0D 0L

Glek Defense 1 game 1W 0D 0L

Normal Variation 1 game 1W 0D 0L

King's Knight Variation 1 game 1W 0D 0L

Ruy Lopez 12 games 6W 4D 2L

Morphy Defense 11 games 6W 3D 2L

Modern Steinitz Defense 8 games 5W 1D 2L

Modern Steinitz Defense, Fianchetto Variation 2 games 1W 1D 0L

Bayreuth Variation 1 game 0W 1D 0L

Closed 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Italian Game 11 games 4W 4D 3L

Classical Variation 7 games 3W 2D 2L

Giuoco Pianissimo 2 games 1W 1D 0L

Giuoco Pianissimo, Main Line 1 game 0W 0D 1L

Greco Gambit, Dubov Italian 1 game 0W 1D 0L

Giuoco Pianissimo, with h6 1 game 1W 0D 0L

Giuoco Pianissimo, with a6 1 game 0W 0D 1L

Greco Gambit, Modern Line 1 game 1W 0D 0L

Giuoco Pianissimo 3 games 1W 2D 0L

Italian Four Knights Variation 2 games 1W 1D 0L

Normal 1 game 0W 1D 0L

Giuoco Piano 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

? 6 games 3W 1D 2L

(unspecified) 6 games 3W 1D 2L

Petrov's Defense 5 games 1W 2D 2L

Modern Attack 2 games 1W 0D 1L

Center Variation 1 game 1W 0D 0L

(unspecified) 1 game 0W 0D 1L

Three Knights Game 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Millennium Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Classical Attack 1 game 0W 1D 0L

Staunton Variation 1 game 0W 1D 0L

Four Knights Game 3 games 2W 1D 0L

Scotch Variation Accepted 2 games 2W 0D 0L

Main Line 2 games 2W 0D 0L

(unspecified) 1 game 0W 1D 0L

King's Indian Attack 3 games 1W 2D 0L

Symmetrical Defense 2 games 1W 1D 0L

(unspecified) 2 games 1W 1D 0L

Wahls Defense 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Scotch Game 3 games 2W 0D 1L

Cochrane-Shumov Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Schmidt Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Mieses Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Zukertort Opening 3 games 1W 2D 0L

Nimzo-Larsen Variation 2 games 0W 2D 0L

(unspecified) 2 games 0W 2D 0L

Old Indian Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Indian Defense 3 games 2W 0D 1L

Przepiorka Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Anti-Grünfeld 1 game 1W 0D 0L

Basman-Williams Attack 1 game 1W 0D 0L

Queen's Pawn Game 2 games 1W 1D 0L

Barry Attack 1 game 1W 0D 0L

Grünfeld Variation 1 game 1W 0D 0L

London System 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

English Opening 2 games 1W 1D 0L

Anglo-Indian Defense 2 games 1W 1D 0L

King's Indian Formation 1 game 0W 1D 0L

Queen's Knight Variation 1 game 1W 0D 0L

East Indian Defense 2 games 2W 0D 0L

(unspecified) 2 games 2W 0D 0L

Slav Defense 2 games 0W 0D 2L

(unspecified) 1 game 0W 0D 1L

Exchange Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Slav Indian 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Nimzo-Larsen Attack 1 game 0W 1D 0L

Classical Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Danish Gambit Declined 1 game 1W 0D 0L

Sörensen Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Rapport-Jobava System 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Réti Opening 1 game 0W 1D 0L

Anglo-Slav Variation 1 game 0W 1D 0L

with g3 1 game 0W 1D 0L

King's Gambit Declined 1 game 1W 0D 0L

Classical Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Blunders Top 4 of 632

This player's costliest moves in analyzed games. Can you find the winning move?

2024.12.09 · 29... Rxg6+ (−58.8% win chance) 0-1

Costachi, Mihnea

Tsolakidou, Stavroula

Engine View game

2025.11.30 · 36. Rd6 (−57.5% win chance) 0-1

Wojtaszek, Radoslaw

Costachi, Mihnea

Engine View game

2024.12.09 · 31... Kf8 (−52.8% win chance) 0-1

Costachi, Mihnea

Tsolakidou, Stavroula

Engine View game

2023.12.03 · 16... Bxd4 (−48.2% win chance) 0-1

Mihnea Costachi

Razvan-Andrei Burja-Udrea

Engine View game

View blunders & mistakes

Games Showing all 170 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.10.11	Round 9: Coicev, Matei-Andrei - Costachi, Mihnea	9.11	2026.10.11 Coicev, Matei-Andrei (1279688) (2358)	0	88.50%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2026.10.10	Round 8: Costachi, Mihnea - Vedmediuc, Artiom	8.29	2026.10.10 Vedmediuc, Artiom (13908570) (2327)	1	98.00%	1. d4 Nf6 2. Nf3 e6 3. c4 b6
2026.10.09	Round 7: Costachi, Mihnea - Mazilu, Stefan Fabian	7.5	2026.10.09 Mazilu, Stefan Fabian (1253239) (2133)	1	93.30%	1. d4 Nf6 2. Nf3 e6 3. c4 d5
2026.10.08	Round 6: Balla, Tamas-Kristof - Costachi, Mihnea	6.29	2026.10.08 Balla, Tamas-Kristof (1208497) (2321)	½	94.50%	1. d4 Nf6 2. c4 c6 3. Nc3 d5
2026.10.07	Round 5: Costachi, Mihnea - Soltanici, Ruslan	5.11	2026.10.07 Soltanici, Ruslan (13900889) (2245)	0	91.10%	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
2026.10.06	Round 4: Nevednichy, Vladislav - Costachi, Mihnea	4.23	2026.10.06 Nevednichy, Vladislav (1205730) (2436)	½	98.40%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2026.10.05	Round 3: Costachi, Mihnea - Talu, Mircea	3.17	2026.10.05 Talu, Mircea (1223356) (2348)	½	99.00%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2026.10.05	Round 2: Srinath, Rao S.V. - Costachi, Mihnea	2.17	2026.10.05 Srinath, Rao S.V. (5028876) (2280)	½	-	1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4
2026.10.05	Round 1: Costachi, Mihnea - Bologan, Victor	1.23	2026.10.05 Bologan, Victor (13900048) (2590)	0	-	1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+
2026.08.02	Round 10: Costachi, Mihnea - Lupulescu, Constantin	10.6	2026.08.02 Lupulescu, Constantin (1207822) (2524)	½	97.60%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2026.08.02	Round 9: Ratkovic, Petar - Costachi, Mihnea	9.19	2026.08.02 Ratkovic, Petar (914533) (2151)	1	96.80%	1. d4 Nf6 2. Nf3 g6 3. Nc3 d5
2026.08.02	Round 8: Costachi, Mihnea - Nedelea, Ariton-Vasile	8.22	2026.08.02 Nedelea, Ariton-Vasile (13902741) (2210)	1	97.90%	1. d4 Nf6 2. c4 e6 3. Nf3 c5
2026.08.02	Round 7: Craciun, Sasha-Matei - Costachi, Mihnea	7.24	2026.08.02 Craciun, Sasha-Matei (1281186) (2256)	½	97.50%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2026.08.02	Round 5: Perunovic, Milos - Costachi, Mihnea	5.8	2026.08.02 Perunovic, Milos (921629) (2560)	0	89.90%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2026.08.01	Round 4: Costachi, Mihnea - Veneteanu, Mihai	4.19	2026.08.01 Veneteanu, Mihai (1239090) (2091)	½	97.00%	1. d4 Nf6 2. Nf3 g6 3. g3 Bg7
2026.08.01	Round 3: Balaban-Voia, Alexandru - Costachi, Mihnea	3.28	2026.08.01 Balaban-Voia, Alexandru (1241575) (2151)	1	97.20%	1. Nf3 Nf6 2. g3 g6 3. b3 Bg7
2025.11.30	Round 13: Georgiev, Kiril - Costachi, Mihnea	13.13	2025.11.30 Georgiev, Kiril (2900017) (2556)	½	97.20%	1. Nf3 Nf6 2. c4 g6 3. g3 Bg7
2025.11.30	Round 12: Costachi, Mihnea - Iturrizaga Bonelli, Eduardo	12.5	2025.11.30 Iturrizaga Bonelli, Eduardo (3901211) (2630)	0	88.90%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2025.11.30	Round 11: Pantsulaia, Levan - Costachi, Mihnea	11.4	2025.11.30 Pantsulaia, Levan (13602071) (2572)	½	92.20%	1. Nf3 Nf6 2. g3 g6 3. b3 Bg7
2025.11.30	Round 10: Costachi, Mihnea - Anton Guijarro, David	10.10	2025.11.30 Anton Guijarro, David (2285525) (2560)	1	-	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2025.11.30	Round 9: Uruci, Ardit - Costachi, Mihnea	9.20	2025.11.30 Uruci, Ardit (22101705) (2026)	1	95.70%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2025.11.30	Round 8: Costachi, Mihnea - Plat, Vojtech	8.4	2025.11.30 Plat, Vojtech (325740) (2562)	0	87.10%	1. d4 d6 2. e4 Nf6 3. Nc3 e5
2025.11.30	Round 7: Livaic, Leon - Costachi, Mihnea	7.9	2025.11.30 Livaic, Leon (14531534) (2569)	1	90.60%	1. d3 d5 2. Nf3 g6 3. Nbd2 Bg7
2025.11.30	Round 6: Costachi, Mihnea - Kukelko, Alexey	6.26	2025.11.30 Kukelko, Alexey (14153084) (2282)	1	85.80%	1. d4 d5 2. c4 e6 3. Nc3 c6
2025.11.30	Round 5: Boci, Mateu - Costachi, Mihnea	5.29	2025.11.30 Boci, Mateu (4704665) (2137)	1	95.10%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.11.30	Round 4: Costachi, Mihnea - Wojtaszek, Radoslaw	4.6	2025.11.30 Wojtaszek, Radoslaw (1118358) (2605)	0	75.80%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2025.11.30	Round 3: Markocic, Tine - Costachi, Mihnea	3.32	2025.11.30 Markocic, Tine (14609622) (2143)	1	94.30%	1. c4 Nf6 2. Nc3 g6 3. e4 d6
2025.11.30	Round 2: Costachi, Mihnea - Kuipers, Dustin	2.36	2025.11.30 Kuipers, Dustin (24617709) (2066)	1	87.80%	1. d4 d5 2. c4 e6 3. Nc3 a6
2025.11.30	Round 1: Vidikjevski, Vancho - Costachi, Mihnea	1.39	2025.11.30 Vidikjevski, Vancho (15015807) (1960)	1	93.70%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2025.11.29	Round 10: Stamatiou, Rodolfos - Costachi, Mihnea	10.39	2025.11.29 Stamatiou, Rodolfos (25826530) (2152)	0	91.30%	1. d4 Nf6 2. Nf3 g6 3. c4 Bg7
2025.11.29	Round 9: Costachi, Mihnea - Santos Latasa, Jaime	9.19	2025.11.29 Santos Latasa, Jaime (2293307) (2667)	0	91.60%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2025.11.29	Round 8: Ramaj, Ergit - Costachi, Mihnea	8.32	2025.11.29 Ramaj, Ergit (4703669) (2232)	½	98.60%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2025.11.29	Round 7: Costachi, Mihnea - Kelmendi, Bajrush	7.36	2025.11.29 Kelmendi, Bajrush (426024) (2142)	1	94.40%	1. d4 g6 2. h4 h5 3. e4 b6
2025.11.29	Round 6: Szalay-Ocsak, Bank - Costachi, Mihnea	6.34	2025.11.29 Szalay-Ocsak, Bank (784923) (2120)	½	99.00%	1. b3 d5 2. Bb2 Nf6 3. Nf3 g6
2025.11.28	Round 4: Rama, Lorenc - Costachi, Mihnea	4.36	2025.11.28 Rama, Lorenc (4700171) (2069)	½	97.30%	1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7
2025.11.28	Round 3: Costachi, Mihnea - Ivanchuk, Vasyl	3.5	2025.11.28 Ivanchuk, Vasyl (14100010) (2630)	0	90.90%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2024.12.10	Round 11: Bogoevski, Jani - Costachi, Mihnea	11.27	2024.12.10 Bogoevski, Jani (15000435) (2144)	1	92.00%	1. d4 f5 2. Nb3 Nb6 3. Nd3 g6
2024.12.10	Round 10: Costachi, Mihnea - Gatineau, Yovann	10.23	2024.12.10 Gatineau, Yovann (26028999) (2363)	0	80.30%	1. g3 Nc6 2. f4 f5 3. Nc3 Nb6
2024.12.10	Round 9: Ragger, Markus - Costachi, Mihnea	9.15	2024.12.10 Ragger, Markus (1610856) (2577)	0	83.90%	1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5
2024.12.10	Round 8: Costachi, Mihnea - Dobrikov, Marco	8.25	2024.12.10 Dobrikov, Marco (12950378) (2407)	1	94.60%	1. e4 c5 2. f4 b6 3. Bf3 Bb7
2024.12.10	Round 7: Muter, Donny - Costachi, Mihnea	7.26	2024.12.10 Muter, Donny (409170) (2206)	½	93.00%	1. f4 f5 2. g3 g6 3. e4 fxe4
2024.12.10	Round 6: Costachi, Mihnea - Bulmaga, Irina	6.23	2024.12.10 Bulmaga, Irina (13903063) (2386)	½	88.70%	1. e4 e5 2. b3 Ng6 3. Ng3 b6
2024.12.10	Round 5: Lagarde, Maxime - Costachi, Mihnea	5.7	2024.12.10 Lagarde, Maxime (662399) (2600)	0	85.60%	1. e4 e5 2. Nf3 b6 3. c3 g6
2024.12.10	Round 4: Costachi, Mihnea - Dragicevic, Drazen	4.27	2024.12.10 Dragicevic, Drazen (1707922) (2332)	1	83.90%	1. d4 d5 2. Nc3 c6 3. Bf4 g5
2024.12.10	Round 3: Kesidis, Odyseas - Costachi, Mihnea	3.26	2024.12.10 Kesidis, Odyseas (4221796) (2241)	1	84.70%	1. b3 c5 2. Bb2 f6 3. g4 Ne6
2024.12.10	Round 2: Costachi, Mihnea - Navara, David	2.5	2024.12.10 Navara, David (309095) (2665)	0	87.60%	1. f4 c6 2. g3 f5 3. c3 g6
2024.12.10	Round 1: Trapp, Maximilian - Costachi, Mihnea	1.40	2024.12.10 Trapp, Maximilian (24620505) (2050)	1	97.50%	1. d4 d5 2. c3 Nf6 3. Bf4 g6
2024.12.09	Round 13: Costachi, Mihnea - Muradli, Mahammad	13.12	2024.12.09 Muradli, Mahammad (13409301) (2566)	0	84.90%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.12.09	Round 12: Djukic, Nikola - Costachi, Mihnea	12.20	2024.12.09 Djukic, Nikola (922412) (2550)	1	88.00%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.12.09	Round 11: Costachi, Mihnea - Zlatkov, Anton	11.34	2024.12.09 Zlatkov, Anton (15005402) (2014)	1	83.40%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2024.12.09	Round 10: Avramidou, Anastasia - Costachi, Mihnea	10.41	2024.12.09 Avramidou, Anastasia (4239873) (2156)	1	91.50%	1. d4 Nf6 2. c4 g6 3. h4 Bg7
2024.12.09	Round 9: Costachi, Mihnea - Pultinevicius, Paulius	9.22	2024.12.09 Pultinevicius, Paulius (12809390) (2584)	0	82.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.12.09	Round 8: Costachi, Mihnea - Radeva, Viktoria	8.27	2024.12.09 Radeva, Viktoria (2915405) (2157)	½	85.70%	1. Nc3 e6 2. d4 d5 3. Bf4 Bb4
2024.12.09	Round 7: Tsolakidou, Stavroula - Costachi, Mihnea	7.37	2024.12.09 Tsolakidou, Stavroula (4264312) (2274)	1	65.00%	1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4
2024.12.09	Round 6: Costachi, Mihnea - Mamedov, Rauf	6.10	2024.12.09 Mamedov, Rauf (13401653) (2629)	0	86.40%	1. d4 d5 2. c4 e6 3. Nc3 c5
2024.12.09	Round 5: Vyval, Volodymyr - Costachi, Mihnea	5.40	2024.12.09 Vyval, Volodymyr (14121530) (2228)	1	93.70%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2024.12.09	Round 4: Costachi, Mihnea - Sirigos, Nikolaos	4.42	2024.12.09 Sirigos, Nikolaos (4201523) (2138)	1	91.10%	1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7
2024.12.09	Round 3: Fedoseev, Vladimir - Costachi, Mihnea	3.2	2024.12.09 Fedoseev, Vladimir (24130737) (2684)	0	90.30%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.12.09	Round 2: Costachi, Mihnea - Mueller, Magnus	2.51	2024.12.09 Mueller, Magnus (16230060) (2114)	1	95.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.12.09	Round 1: Marques, Ricardo Taborda Trigo - Costachi, Mihnea	1.54	2024.12.09 Marques, Ricardo Taborda Trigo (1949438) (1948)	1	90.00%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.12.08	Round 11: Deac, Bogdan-Daniel - Costachi, Mihnea	11.25	2024.12.08 Deac, Bogdan-Daniel (1226380) (2635)	½	90.30%	1. Nf3 Nf6 2. d4 d5 3. Bf4 c5
2024.12.08	Round 10: Costachi, Mihnea - Podlesnik, Bogdan	10.45	2024.12.08 Podlesnik, Bogdan (14600129) (2217)	1	95.20%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2024.12.08	Round 9: Motylev, Alexander - Costachi, Mihnea	9.22	2024.12.08 Motylev, Alexander (4121830) (2627)	0	89.60%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2024.12.08	Round 8: Costachi, Mihnea - Santos Latasa, Jaime	8.16	2024.12.08 Santos Latasa, Jaime (2293307) (2655)	½	90.40%	1. d4 e6 2. c4 d5 3. Nc3 Nf6
2024.12.08	Round 7: Promyshlyanskiy, Vitaliy - Costachi, Mihnea	7.41	2024.12.08 Promyshlyanskiy, Vitaliy (14118130) (2172)	1	93.30%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.12.07	Round 6: Costachi, Mihnea - Quparadze, Giga	6.15	2024.12.07 Quparadze, Giga (13602250) (2563)	0	89.40%	1. Nc3 c5 2. Nf3 e6 3. g3 d5
2024.12.07	Round 5: Yuste Valenzuela, Alejandro - Costachi, Mihnea	5.48	2024.12.07 Yuste Valenzuela, Alejandro (54535760) (2061)	1	88.40%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.12.07	Round 4: Costachi, Mihnea - Iskos, Alexandros	4.48	2024.12.07 Iskos, Alexandros (4208676) (2109)	1	95.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.12.07	Round 3: Korobov, Anton - Costachi, Mihnea	3.9	2024.12.07 Korobov, Anton (14105730) (2608)	0	82.40%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.10.05	Round 8: Maximov, Oleg - Costachi, Mihnea	8.17	2024.10.05 Maximov, Oleg (4176960) (2190)	1	99.70%	1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6
2024.10.03	Round 6: Dodoi, Matei-Teodor - Costachi, Mihnea	6.22	2024.10.03 Dodoi, Matei-Teodor (1278029) (2064)	½	96.80%	1. d4 Nf6 2. c4 g6 3. Nf3 Bg7
2024.10.01	Round 4: Costachi, Mihnea - Patrascu, Catalin-Lucian	4.17	2024.10.01 Patrascu, Catalin-Lucian (1229052) (2298)	½	93.40%	1. d4 Nf6 2. Nf3 e6 3. c4 d5
2024.09.28	Round 1: Padurariu, Mihai-Edward - Costachi, Mihnea	1.11	2024.09.28 Padurariu, Mihai-Edward (1234811) (2233)	½	94.20%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
2024.08.04	Round 10: Costachi, Mihnea - Sachilaru, Alexandru	10.26	2024.08.04 Sachilaru, Alexandru (1275143) (2265)	0	87.70%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.08.04	Round 9: Deac, Bogdan-Daniel - Costachi, Mihnea	9.9	2024.08.04 Deac, Bogdan-Daniel (1226380) (2641)	0	89.30%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6
2024.08.04	Round 8: Pranesh M - Costachi, Mihnea	8.13	2024.08.04 Pranesh M (35028600) (2483)	½	87.60%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.08.04	Round 7: Costachi, Mihnea - Krysa, Leandro	7.12	2024.08.04 Krysa, Leandro (116807) (2510)	½	96.70%	1. Nc3 d5 2. d4 Nf6 3. Bf4 a6
2024.08.04	Round 6: Sandu, Mihaela - Costachi, Mihnea	6.25	2024.08.04 Sandu, Mihaela (1204327) (2032)	1	91.60%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.08.04	Round 5: Costachi, Mihnea - Maksimovic, Masa	5.30	2024.08.04 Maksimovic, Masa (14408902) (2042)	1	97.60%	1. Nc3 d5 2. d4 Nf6 3. Bf4 c5
2024.08.03	Round 4: Gavrilescu, David - Costachi, Mihnea	4.8	2024.08.03 Gavrilescu, David (1227190) (2535)	0	82.80%	1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4
2024.07.12	XLIII Open Villa de Benasque 2024	8.8	2024.07.12 Yuffa, Daniil (24131423) (2609)	½	91.30%	1. d4 Nf6 2. Nf3 d5 3. c4 e6
2024.07.10	XLIII Open Villa de Benasque 2024	6.5	2024.07.10 Quparadze, Giga (13602250) (2516)	½	95.40%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6
2024.07.09	XLIII Open Villa de Benasque 2024	5.3	2024.07.09 Gopal G.N. (5015693) (2564)	½	99.80%	1. d4 Nf6 2. c4 g6 3. Nc3 d5
2024.06.14	Round 10: Cebotari, Stanislav - Costachi, Mihnea		2024.06.14 Cebotari, Stanislav (13908200) (2007)	½	89.80%	1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7
2024.06.14	Round 9: Costachi, Mihnea - Manea, Alexandru		2024.06.14 Manea, Alexandru (1207660) (2246)	½	89.80%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.06.14	Round 8: Cosman, Andreea-Marioara - Costachi, Mihnea		2024.06.14 Cosman, Andreea-Marioara (1217968) (2079)	1	96.90%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2024.06.14	Round 7: Costachi, Mihnea - Ghita, Vlad-Bogdan		2024.06.14 Ghita, Vlad-Bogdan (1222198) (1946)	1	91.40%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2024.06.14	Round 6: Sachilaru, Alexandru - Costachi, Mihnea		2024.06.14 Sachilaru, Alexandru (1275143) (2146)	0	86.80%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.06.14	Round 5: Costachi, Mihnea - Narayanan S L		2024.06.14 Narayanan S L (5058422) (2598)	0	83.50%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.06.13	Round 4: Visanescu, Dragos-Nicholas - Costachi, Mihnea		2024.06.13 Visanescu, Dragos-Nicholas (1265431) (1927)	1	93.60%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.06.13	Round 3: Costachi, Mihnea - Maria, Lia-Alexandra		2024.06.13 Maria, Lia-Alexandra (1248952) (2022)	1	91.10%	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
2024.06.13	Round 2: Ivancescu, Bogdan-Andrei - Costachi, Mihnea		2024.06.13 Ivancescu, Bogdan-Andrei (1274473) (1900)	1	93.70%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2024.06.13	Round 1: Costachi, Mihnea - Stanescu, Andrei-Cornel		2024.06.13 Stanescu, Andrei-Cornel (42241170) (1689)	1	94.90%	1. Nc3 e6 2. d4 d5 3. Bf4 Bb4
2024.03.24	Round 10: Filev, Georgi - Costachi, Mihnea		2024.03.24 Filev, Georgi (2907500) (2248)	½	91.30%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2024.03.24	Round 9: Costachi, Mihnea - Ponomariov, Ruslan		2024.03.24 Ponomariov, Ruslan (14103320) (2646)	0	89.20%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.03.24	Round 8: Kuzubov, Yuriy - Costachi, Mihnea		2024.03.24 Kuzubov, Yuriy (14112906) (2601)	1	92.40%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7
2024.03.24	Round 7: Costachi, Mihnea - Veneteanu, Mihai		2024.03.24 Veneteanu, Mihai (1239090) (2006)	1	97.60%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2024.03.24	Round 6: Deac, Bogdan-Daniel - Costachi, Mihnea		2024.03.24 Deac, Bogdan-Daniel (1226380) (2639)	0	88.90%	1. e4 e5 2. Bc4 Nf6 3. d3 Bc5
2024.03.24	Round 5: Costachi, Mihnea - Nedelcu, Teodor-Cosmin		2024.03.24 Nedelcu, Teodor-Cosmin (1246305) (2125)	1	93.70%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2024.03.23	Round 4: Pisu, Robert-Daniel - Costachi, Mihnea		2024.03.23 Pisu, Robert-Daniel (1218204) (2115)	1	90.80%	1. d4 Nf6 2. Nf3 g6 3. g3 Bg7
2024.03.23	Round 3: Costachi, Mihnea - Dragomirescu, Angela		2024.03.23 Dragomirescu, Angela (1209914) (2059)	½	93.90%	1. Nc3 d6 2. d4 e5 3. Nf3 Nd7
2024.03.23	Round 2: Andries, Alf - Costachi, Mihnea		2024.03.23 Andries, Alf (1463373) (1937)	1	97.20%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2024.03.23	Round 1: Costachi, Mihnea - Stoica, Vlad V.		2024.03.23 Stoica, Vlad V. (42234026) (1722)	1	98.00%	1. Nc3 Nf6 2. e4 e5 3. Bc4 Bc5
2023.12.16	European Blitz Championship	13	2023.12.16 Kahleys, Kevin (24669601) (2272)	½	98.20%	1. d4 Nf6 2. Nf3 g6 3. g3 Bg7
2023.12.16	European Blitz Championship	12	2023.12.16 Spalir, Jernej (14606518) (2322)	½	92.50%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2023.12.16	European Blitz Championship	11	2023.12.16 Fressinet, Laurent (608742) (2635)	0	82.80%	1. d4 Nf6 2. Nf3 g6 3. g3 Bg7
2023.12.16	European Blitz Championship	10	2023.12.16 Radenic, Filip (14536510) (2318)	1	88.30%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2023.12.16	European Blitz Championship	9	2023.12.16 Goroshkov, Maksym (14142716) (2349)	½	98.80%	1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7
2023.12.16	European Blitz Championship	8	2023.12.16 Maier, Christian (4601955) (2232)	1	91.80%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.16	European Blitz Championship	7	2023.12.16 Navara, David (309095) (2661)	0	88.90%	1. d4 d5 2. c4 c6 3. Nc3 Nf6
2023.12.16	European Blitz Championship	6	2023.12.16 Dragicevic, Drazen (1707922) (2242)	1	77.30%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2023.12.16	European Blitz Championship	5	2023.12.16 Herega, Nejc (14634058) (2208)	½	91.90%	1. d4 Nf6 2. c4 g6 3. Nf3 Bg7
2023.12.16	European Blitz Championship	4	2023.12.16 Sarana, Alexey (24133795) (2707)	½	93.00%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.12.16	European Blitz Championship	3	2023.12.16 Vojak, Daniel (14535262) (2243)	1	79.40%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.12.15	European Rapid Championship	11	2023.12.15 Goroshkov, Maksym (14142716) (2307)	1	97.80%	1. e4 e5 2. d4 exd4 3. c3 d5
2023.12.15	European Rapid Championship	10	2023.12.15 Vyval, Volodymyr (14121530) (2182)	½	97.30%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.12.15	European Rapid Championship	9	2023.12.15 Haszon, David (733610) (2189)	½	85.30%	1. d4 Nf6 2. Bf4 g6 3. Nc3 d5
2023.12.15	European Rapid Championship	8	2023.12.15 Hulka, Valentyn (34107061) (2093)	½	95.40%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.12.14	European Rapid Championship	6	2023.12.14 Dardha, Daniel (240990) (2543)	0	84.90%	1. d4 Nf6 2. c4 e6 3. Nf3 h6
2023.12.14	European Rapid Championship	4	2023.12.14 Saric, Ivan (14508150) (2623)	½	95.40%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.03	Round 8: Teodor-Cosmin Nedelcu - Mihnea Costachi		2023.12.03 Teodor-Cosmin Nedelcu	1	84.20%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.03	Round 7: Mihnea Costachi - Lucian-Costin Miron		2023.12.03 Lucian-Costin Miron	1	93.90%	1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
2023.12.03	Round 6: Mihnea Costachi - Costica-Ciprian Nanu		2023.12.03 Costica-Ciprian Nanu	1	92.70%	1. d4 Nf6 2. c4 e6 3. Nf3 b6
2023.12.03	Round 5: Romulus-Cristian Stefan - Mihnea Costachi		2023.12.03 Romulus-Cristian Stefan	1	87.40%	1. d4 Nf6 2. Nf3 g6 3. c4 Bg7
2023.12.03	Round 4: Mihnea Costachi - Robert-Ionut Creanga		2023.12.03 Robert-Ionut Creanga	½	94.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.12.03	Round 3: Constantin Lupulescu - Mihnea Costachi		2023.12.03 Constantin Lupulescu	½	93.00%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.03	Round 2: Mihnea Costachi - Alexandru-Ioan Simina		2023.12.03 Alexandru-Ioan Simina	1	90.70%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.12.03	Round 1: Razvan-Andrei Burja-Udrea - Mihnea Costachi		2023.12.03 Razvan-Andrei Burja-Udrea	1	78.50%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.12.02	Round 8: Mihnea Costachi - Daniel-Cristian Padurean		2023.12.02 Daniel-Cristian Padurean	1	96.40%	1. d4 Nc6 2. Nf3 d5 3. Bf4 Bg4
2023.12.02	Round 7: Teodor-Cosmin Nedelcu - Mihnea Costachi		2023.12.02 Teodor-Cosmin Nedelcu	0	90.40%	1. d4 d5 2. c4 c6 3. cxd5 cxd5
2023.12.02	Round 6: Mihnea Costachi - Andrei Negrean		2023.12.02 Andrei Negrean	½	97.00%	1. Nc3 d5 2. d4 Nf6 3. Bf4 c5
2023.12.02	Round 5: Lucian-Costin Miron - Mihnea Costachi		2023.12.02 Lucian-Costin Miron	½	94.80%	1. Nf3 Nf6 2. c4 c6 3. g3 d5
2023.12.02	Round 1: Mihnea Costachi - Romulus-Cristian Stefan		2023.12.02 Romulus-Cristian Stefan	1	93.80%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2023.12.02	Round 4: Mihnea Costachi - Constantin Lupulescu		2023.12.02 Constantin Lupulescu	0	69.20%	1. d4 Nf6 2. Nf3 d5 3. c4 e6
2023.12.02	Round 3: Mihnea Costachi - Costica-Ciprian Nanu		2023.12.02 Costica-Ciprian Nanu	½	96.80%	1. d4 Nf6 2. Nf3 e6 3. c4 b6
2023.12.02	Round 2: Nicolae Dicu - Mihnea Costachi		2023.12.02 Nicolae Dicu	1	98.40%	1. d4 Nf6 2. c4 d6 3. Nc3 g6
2023.12.01	Round 10: Mihnea Costachi - Filip Magold		2023.12.01 Filip Magold	½	90.60%	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
2023.12.01	Round 9: Vlad-Cristian Jianu - Mihnea Costachi		2023.12.01 Vlad-Cristian Jianu	1	84.30%	1. c4 Nf6 2. Nc3 g6 3. d4 Bg7
2023.12.01	Round 8: Teodor-Cosmin Nedelcu - Mihnea Costachi		2023.12.01 Teodor-Cosmin Nedelcu	1	86.70%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.01	Round 7: Mihnea Costachi - David Gavrilescu		2023.12.01 David Gavrilescu	1	87.20%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2023.12.01	Round 6: Mihnea Costachi - Armand Veress		2023.12.01 Armand Veress	1	97.70%	1. d4 d5 2. c4 e6 3. Nc3 c5
2023.12.01	Round 5: Costica-Ciprian Nanu - Mihnea Costachi		2023.12.01 Costica-Ciprian Nanu	1	97.40%	1. c4 Nf6 2. Nf3 g6 3. g3 Bg7
2023.12.01	Round 4: Mihnea Costachi - Constantin Lupulescu		2023.12.01 Constantin Lupulescu	0	85.20%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.12.01	Round 3: Teodor-Mihnea Voicu - Mihnea Costachi		2023.12.01 Teodor-Mihnea Voicu	1	94.80%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.12.01	Round 2: Mihnea Costachi - David Cordea		2023.12.01 David Cordea	1	93.60%	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
2023.12.01	Round 1: Iulia-Cristiana Stefan - Mihnea Costachi		2023.12.01 Iulia-Cristiana Stefan	1	91.20%	1. d4 Nf6 2. Nf3 g6 3. c4 Bg7
2023.11.05	Round 10: Mihnea Costachi - Marius Manolache		2023.11.05 Marius Manolache (2336)	1	94.60%	1. d4 Nf6 2. c4 Nc6 3. Nf3 e6
2023.11.05	Round 9: Anna Zatonskih - Mihnea Costachi		2023.11.05 Anna Zatonskih (2266)	1	84.60%	1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5
2023.11.05	Round 8: Mihnea Costachi - Anastasiya Rakhmangulova		2023.11.05 Anastasiya Rakhmangulova (2169)	1	91.50%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2023.11.05	Round 7: Vladimir-Alexandru Cnejev - Mihnea Costachi		2023.11.05 Vladimir-Alexandru Cnejev (2128)	½	97.60%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.11.05	Round 6: Mihnea Costachi - Gheorghe Grad		2023.11.05 Gheorghe Grad (1965)	1	92.10%	1. Nc3 Nf6 2. e4 e5 3. Bc4 Be7
2023.11.05	Round 5: Alexandru Sachilaru - Mihnea Costachi		2023.11.05 Alexandru Sachilaru (1969)	½	89.90%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.11.04	Round 4: Mihnea Costachi - Andrei Negrean		2023.11.04 Andrei Negrean (2049)	½	89.30%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.11.04	Round 3: Sasha-Matei Craciun - Mihnea Costachi		2023.11.04 Sasha-Matei Craciun (2050)	½	96.50%	1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
2023.11.04	Round 2: Mihnea Costachi - Marian Zaim		2023.11.04 Marian Zaim (1878)	1	93.90%	1. Nc3 g6 2. d4 d5 3. Bf4 Bg7
2023.11.04	Round 1: Denis-Gabriel Grasu - Mihnea Costachi		2023.11.04 Denis-Gabriel Grasu	1	87.30%	1. e4 e5 2. f4 Bc5 3. Nf3 d6
2023.08.06	Round 8: Mihnea Costachi - Mihnea-Ionut Ognean		2023.08.06 Mihnea-Ionut Ognean	0	89.00%	1. Nc3 d5 2. d4 Nf6 3. Bf4 c5
2023.08.06	Round 7: Haik M. Martirosyan - Mihnea Costachi		2023.08.06 Haik M. Martirosyan	0	80.70%	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2023.08.06	Round 5: Mihnea Costachi - Evelyn Wagenschuetz		2023.08.06 Evelyn Wagenschuetz	1	96.10%	1. Nc3 Nf6 2. e4 e5 3. Bc4 Bb4
2023.08.05	Round 4: Constantin Lupulescu - Mihnea Costachi		2023.08.05 Constantin Lupulescu	½	94.50%	1. d4 Nf6 2. c4 c6 3. Nf3 d5
2023.04.30	Round 10: Raunak Sadhwani - Mihnea Costachi		2023.04.30 Raunak Sadhwani	0	90.00%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2023.04.30	Round 9: Mihnea Costachi - Jakub Roubalik		2023.04.30 Jakub Roubalik	1	93.90%	1. d4 Nf6 2. c4 e6 3. Nf3 d5
2023.04.30	Round 8: Nicodim-Cosmin Stepanencu - Mihnea Costachi		2023.04.30 Nicodim-Cosmin Stepanencu	1	88.60%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6
2023.04.30	Round 7: Mihnea Costachi - Dragos-Nicolae Dumitrache		2023.04.30 Dragos-Nicolae Dumitrache	1	89.40%	1. d4 Nf6 2. c4 c5 3. d5 b5
2023.04.30	Round 6: Filip Magold - Mihnea Costachi		2023.04.30 Filip Magold	0	86.00%	1. c4 Nf6 2. Nc3 g6 3. e4 d6
2023.04.30	Round 5: Mihnea Costachi - Silvia-Raluca Sgircea		2023.04.30 Silvia-Raluca Sgircea	1	93.80%	1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
2023.04.29	Round 4: Cristian-Clement Daianu - Mihnea Costachi		2023.04.29 Cristian-Clement Daianu	½	90.20%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2023.04.29	Round 3: Mihnea Costachi - Mihai-Edward Padurariu		2023.04.29 Mihai-Edward Padurariu	½	94.00%	1. d4 d5 2. c4 e6 3. Nc3 c5
2023.04.29	Round 2: Ema Obada - Mihnea Costachi		2023.04.29 Ema Obada	1	96.10%	1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
2023.04.29	Round 1: Mihnea Costachi - Ionel Linca		2023.04.29 Ionel Linca	1	93.30%	1. Nc3 c5 2. Nf3 d5 3. d4 e6