Player profile

Costin, Alexandru

Standard: 2086 Rapid: 2032 Blitz: 2060 (last updated 2026-10-02)

FIDE ID: 1249681 (view FIDE profile)

Federation: ROU Sex: M Birth Year: 2005 Age: 21

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

Games: 44 Wins: 17 (39%) Draws: 11 (25%) Losses: 16 (36%)

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Dossier

44 of 44 games analyzed.

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Openings

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As White 18 games 6W 2D 10L

Sicilian Defense 4 games 0W 0D 4L

Four Knights Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Alapin Variation 1 game 0W 0D 1L

Smith-Morra Declined 1 game 0W 0D 1L

Modern Variations 1 game 0W 0D 1L

Anti-Qxd4 Move Order Accepted 1 game 0W 0D 1L

Smith-Morra Gambit Accepted 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

French Defense 2 games 2W 0D 0L

Steiner Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Exchange Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Opening 2 games 1W 0D 1L

Anglo-Grünfeld Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Symmetrical Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Indian Defense 2 games 0W 1D 1L

Knights Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Przepiorka Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

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

Accelerated Panov Attack 1 game 0W 0D 1L

Modern Variation 1 game 0W 0D 1L

Zukertort Opening 1 game 0W 0D 1L

Kingside Fianchetto 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Queen's Pawn Game 1 game 0W 0D 1L

Symmetrical Variation 1 game 0W 0D 1L

Pseudo-Catalan 1 game 0W 0D 1L

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

Barmen Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Tarrasch Defense 1 game 0W 1D 0L

Classical Variation 1 game 0W 1D 0L

Advance Variation 1 game 0W 1D 0L

Italian Game 1 game 1W 0D 0L

Scotch Invitation Declined 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Owen Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Modern Defense 1 game 1W 0D 0L

Standard Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 18 games 8W 4D 6L

Caro-Kann Defense 6 games 3W 2D 1L

Two Knights Attack 2 games 1W 1D 0L

Mindeno Variation, Exchange Line 2 games 1W 1D 0L

Exchange Variation 2 games 1W 0D 1L

(unspecified) 2 games 1W 0D 1L

Advance Variation 1 game 0W 1D 0L

Tal Variation 1 game 0W 1D 0L

Euwe Attack 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Semi-Slav Defense 3 games 1W 0D 2L

Noteboom Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Main Line 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Chigorin Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

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

Keres Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Réti Opening 2 games 1W 1D 0L

(unspecified) 1 game 0W 1D 0L

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

Capablanca Variation 1 game 1W 0D 0L

Hungarian Opening 1 game 1W 0D 0L

Slav Formation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Sicilian Defense 1 game 0W 0D 1L

Mengarini Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Indian Defense 1 game 0W 1D 0L

Knights Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Slav Defense 1 game 0W 0D 1L

Modern Line 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Bogo-Indian Defense 1 game 0W 0D 1L

Grünfeld Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 197

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

2023.12.02 · 36. b6 (−47.6% win chance) 0-1

Andrei Matei-Catruna

Alexandru Costin

Engine View game

2023.11.05 · 51... Kf8 (−41.1% win chance) 1/2-1/2

Alexandru Costin

Robert-Ionut Creanga

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2023.04.10 · 40... g6 (−38.5% win chance) 1/2-1/2

Alexandru Costin

Cristian-Stefan Serban

Engine View game

2023.12.02 · 57. h4 (−37.6% win chance) 1/2-1/2

Alin Stingu

Alexandru Costin

Engine View game

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Games Showing all 44 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2024.08.08	Round 6: Costin, Alexandru - Poltorak, Sebastian	6.33	2024.08.08 Poltorak, Sebastian (1199498) (2397)	0	87.80%	1. e4 c6 2. c4 d5 3. exd5 cxd5
2024.08.04	Round 9: Costin, Alexandru - David, Alexandru-Vasile	9.20	2024.08.04 David, Alexandru-Vasile (1223453) (2390)	0	91.20%	1. e4 c5 2. Nf3 e6 3. d4 cxd4
2024.08.04	Round 8: Grunberg, Mihai-Lucian - Costin, Alexandru	8.33	2024.08.04 Grunberg, Mihai-Lucian (1204149) (2308)	1	86.30%	1. Nf3 d5 2. g3 c6 3. Bg2 Bg4
2024.07.17	Round 4: Chen, Qi b - Costin, Alexandru	4.12	2024.07.17 Chen, Qi b (8614733) (2481)	½	93.80%	1. e4 c6 2. d4 d5 3. e5 Bf5
2023.12.03	Round 8: Tudor-Vlad Sfarlog - Alexandru Costin		2023.12.03 Tudor-Vlad Sfarlog	½	88.70%	1. Nf3 d5 2. c4 c6 3. Qc2 Nf6
2023.12.03	Round 7: Beniamin-Ephraim Damian - Alexandru Costin		2023.12.03 Beniamin-Ephraim Damian	1	97.40%	1. e4 c6 2. Nf3 d5 3. Nc3 Bg4
2023.12.03	Round 6: Alexandru Costin - Adrian-Simion Secheres		2023.12.03 Adrian-Simion Secheres	0	86.00%	1. Nf3 g6 2. g3 Bg7 3. Bg2 d6
2023.12.03	Round 5: Alexandru Costin - Andrei Nicola		2023.12.03 Andrei Nicola	1	93.10%	1. e4 e6 2. c4 c6 3. Nc3 d5
2023.12.03	Round 4: Mihai-Dragos Vesa - Alexandru Costin		2023.12.03 Mihai-Dragos Vesa	1	95.00%	1. d4 d5 2. c4 e6 3. Nf3 c6
2023.12.03	Round 3: Alexandru Costin - Filip Magold		2023.12.03 Filip Magold	0	83.80%	1. d4 d5 2. Nf3 Nf6 3. g3 Bf5
2023.12.03	Round 2: Ianis-Mihai Tarciuc - Alexandru Costin		2023.12.03 Ianis-Mihai Tarciuc	1	85.60%	1. g3 d5 2. Bg2 c6 3. b3 Nf6
2023.12.03	Round 1: Alexandru Costin - David Gavrilescu		2023.12.03 David Gavrilescu	0	92.00%	1. d4 d5 2. Nf3 Nf6 3. c4 e6
2023.12.02	Round 8: Hunor-Zoltan Antal - Alexandru Costin		2023.12.02 Hunor-Zoltan Antal	0	88.50%	1. a3 c5 2. e4 Nc6 3. Nf3 d6
2023.12.02	Round 7: Alexandru Costin - Razvan Teodorescu		2023.12.02 Razvan Teodorescu	0	93.60%	1. e4 c5 2. d4 cxd4 3. c3 Nf6
2023.12.02	Round 6: Alexandru Costin - Alin Stingu		2023.12.02 Alin Stingu	½	90.80%	1. c4 e6 2. g3 d5 3. Bg2 c5
2023.12.02	Round 5: Mircea-Emilian Parligras - Alexandru Costin		2023.12.02 Mircea-Emilian Parligras	0	88.60%	1. d4 d5 2. c4 e6 3. Nf3 Nf6
2023.12.02	Round 1: Alexandru Costin - Andrei Matei-Catruna		2023.12.02 Andrei Matei-Catruna	0	77.20%	1. e4 c5 2. d4 d6 3. Nf3 Nf6
2023.12.02	Round 4: Doru Jiros - Alexandru Costin		2023.12.02 Doru Jiros	1	96.20%	1. Nf3 d5 2. e3 c6 3. c4 Nf6
2023.12.02	Round 3: Alexandru Costin - Brianna-Delena Muntean		2023.12.02 Brianna-Delena Muntean	1	94.50%	1. e4 e5 2. Nf3 Nc6 3. d4 d6
2023.12.02	Round 2: Pavel-Alexandru Nastore - Alexandru Costin		2023.12.02 Pavel-Alexandru Nastore	½	88.80%	1. d4 Nf6 2. Nf3 e6 3. g3 c5
2023.12.01	Round 10: Alexandru Costin - David Cordea		2023.12.01 David Cordea	1	95.80%	1. e4 b6 2. Nf3 Bb7 3. Bc4 e6
2023.12.01	Round 9: Ion-Valentin Vaduva - Alexandru Costin		2023.12.01 Ion-Valentin Vaduva	1	93.10%	1. e4 c6 2. b3 d5 3. Bd3 dxe4
2023.12.01	Round 8: Alexandru Costin - Matei Zlate-Ion		2023.12.01 Matei Zlate-Ion	0	79.10%	1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5
2023.12.01	Round 7: Ioan-Radu Dima - Alexandru Costin		2023.12.01 Ioan-Radu Dima	0	83.10%	1. d4 d5 2. Nf3 c6 3. g3 Bg4
2023.12.01	Round 6: Alexandru Costin - Costica-Ciprian Nanu		2023.12.01 Costica-Ciprian Nanu	0	78.20%	1. d4 Nf6 2. Nf3 e6 3. g3 c5
2023.12.01	Round 5: David-Alexandru Harabor - Alexandru Costin		2023.12.01 David-Alexandru Harabor	1	89.50%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2023.12.01	Round 4: David Saioc - Alexandru Costin		2023.12.01 David Saioc	1	87.70%	1. Nf3 d5 2. g3 c6 3. Bg2 Bg4
2023.12.01	Round 3: Alexandru Costin - Andrei Cazan		2023.12.01 Andrei Cazan	1	88.80%	1. e4 g6 2. d4 Bg7 3. Nc3 d6
2023.12.01	Round 2: Armand Veress - Alexandru Costin		2023.12.01 Armand Veress	0	89.30%	1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+
2023.12.01	Round 1: Alexandru Costin - Andrei-Stefan Sandu		2023.12.01 Andrei-Stefan Sandu	1	94.90%	1. e4 e6 2. Nf3 d5 3. exd5 exd5
2023.11.05	Round 10: Andrei-Cristian Bulau - Alexandru Costin		2023.11.05 Andrei-Cristian Bulau (2233)	0	86.80%	1. d4 d5 2. c4 c6 3. Nc3 e6
2023.11.05	Round 9: Alexandru Costin - Teodor-Cosmin Nedelcu		2023.11.05 Teodor-Cosmin Nedelcu (2170)	1	92.40%	1. c4 c5 2. Nf3 Nc6 3. Nc3 e6
2023.11.05	Round 7: Alexandru Costin - Lucian-Ioan Filip		2023.11.05 Lucian-Ioan Filip (2285)	0	90.00%	1. e4 c5 2. d4 cxd4 3. c3 dxc3
2023.11.05	Round 6: Robert-Ionut Creanga - Alexandru Costin		2023.11.05 Robert-Ionut Creanga (2184)	½	85.20%	1. e4 c6 2. Nf3 d5 3. Nc3 Bg4
2023.11.05	Round 5: Alexandru Costin - Adrian-Simion Secheres		2023.11.05 Adrian-Simion Secheres (2245)	½	85.60%	1. d4 Nf6 2. Nf3 g6 3. g3 Bg7
2023.11.04	Round 2: George-Catalin Ardelean - Alexandru Costin		2023.11.04 George-Catalin Ardelean (2474)	0	94.40%	1. e4 c6 2. d4 d5 3. exd5 cxd5
2023.07.22	Round 9: Michalis Papadakis - Alexandru Costin		2023.07.22 Michalis Papadakis	1	96.30%	1. d4 d5 2. Nf3 c6 3. g3 Bg4
2023.07.21	Round 8: Alexandru Costin - Alin Ardeleanu		2023.07.21 Alin Ardeleanu	½	91.40%	1. e4 d6 2. d4 Nf6 3. Nc3 g6
2023.07.20	Round 7: Andrei-Cristian Bulau - Alexandru Costin		2023.07.20 Andrei-Cristian Bulau	½	96.30%	1. e4 c6 2. Nf3 d5 3. d3 dxe4
2023.07.19	Round 6: Alexandru Costin - Anna Kubicka		2023.07.19 Anna Kubicka	½	93.20%	1. e4 c5 2. d4 cxd4 3. c3 dxc3
2023.07.19	Round 5: Pavel-Alexandru Nastore - Alexandru Costin		2023.07.19 Pavel-Alexandru Nastore	½	94.80%	1. e4 c6 2. d4 d5 3. Nc3 dxe4
2023.07.18	Round 4: Alexandru Costin - Guy Levin		2023.07.18 Guy Levin	1	96.70%	1. e4 c6 2. c4 d5 3. exd5 cxd5
2023.07.17	Round 2: Alexandru Costin - Alexandru-Vasile David		2023.07.17 Alexandru-Vasile David	1	93.10%	1. e4 c5 2. d4 cxd4 3. c3 Nf6
2023.04.10	Round 1: Cristian-Stefan Serban - Alexandru Costin		2023.04.10 Cristian-Stefan Serban	½	84.30%	1. d4 d5 2. c4 e6 3. Nf3 c6