Player profile

Koc, Mert

Standard: 1818 Rapid: 1820 Blitz: 1806 (last updated 2026-10-02)

FIDE ID: 6391516 (view FIDE profile)

Federation: TUR Sex: M Birth Year: 1982 Age: 44

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

Games: 17 Wins: 5 (29%) Draws: 4 (24%) Losses: 8 (47%)

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Dossier

6 of 17 games analyzed.

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Openings

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As White 9 games 3W 1D 5L

Torre Attack 4 games 0W 1D 3L

Fianchetto Defense 4 games 0W 1D 3L

(unspecified) 4 games 0W 1D 3L

Queen's Gambit Declined 2 games 1W 0D 1L

Harrwitz Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Semi-Tarrasch Defense 1 game 1W 0D 0L

with e3 1 game 1W 0D 0L

Slav Defense 1 game 1W 0D 0L

Breyer Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Tarrasch Defense 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Semi-Slav Defense 1 game 1W 0D 0L

Main Line 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 8 games 2W 3D 3L

Scandinavian Defense 6 games 2W 2D 2L

Valencian Variation 4 games 2W 1D 1L

Main Line 2 games 1W 1D 0L

(unspecified) 2 games 1W 0D 1L

Mieses-Kotroc Variation 2 games 0W 1D 1L

(unspecified) 2 games 0W 1D 1L

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

Charousek Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

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

Classical Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Blunders Top 4 of 24

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

2026.05.31 · 58... Kd5 (−47.5% win chance) 1-0

Koc, Mert

Akal, Muhammed Furkan

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2026.02.20 · 49. Kxb5 (−42.9% win chance) 1/2-1/2

Kilic, Inanc

Koc, Mert

Engine View game

2026.05.31 · 29. Nc4 (−38.9% win chance) 0-1

Soydan, Can

Koc, Mert

Engine View game

2026.02.20 · 50. Kb6 (−38.2% win chance) 1/2-1/2

Kilic, Inanc

Koc, Mert

Engine View game

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Games Showing all 17 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.05.31	Round 7: Koc, Mert - Soydan, Can	7.5	2026.05.31 Soydan, Can (51667410) (1733)	0	79.80%	1. d4 d5 2. c4 e6 3. Nc3 Nf6
2026.05.31	Round 6: Sogut, Ilke - Koc, Mert	6.5	2026.05.31 Sogut, Ilke (525014480)	1	87.20%	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8
2026.05.31	Round 4: Akal, Muhammed Furkan - Koc, Mert	4.6	2026.05.31 Akal, Muhammed Furkan (51645025)	0	86.40%	1. e4 d5 2. exd5 Qxd5 3. d4 Nf6
2026.05.31	Round 3: Koc, Mert - Yildiz, Ali Aras	3.3	2026.05.31 Yildiz, Ali Aras (51619822) (2020)	0	76.40%	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2026.02.20	Round 7: Taseli, Toprak - Koc, Mert	7.3	2026.02.20 Taseli, Toprak (51643936) (1658)	½	-	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8
2026.02.20	Round 6: Koc, Mert - Yilmaz, Can Aslan	6.7	2026.02.20 Yilmaz, Can Aslan (525004603) (1622)	1	-	1. d4 d5 2. c4 c6 3. Nf3 Nf6
2026.02.20	Round 5: Koc, Mert - Gurel, Ediz	5.1	2026.02.20 Gurel, Ediz (44507356) (2559)	0	-	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2026.02.20	Round 4: Citak, Selim - Koc, Mert	4.3	2026.02.20 Citak, Selim (6301819) (2248)	0	-	1. d4 d5 2. c4 e6 3. Nc3 Be7
2026.02.20	Round 13: Eken, Atakan - Koc, Mert	13.7	2026.02.20 Eken, Atakan (6375626) (2065)	½	-	1. Nf3 d5 2. b3 Nf6 3. e3 c6
2026.02.20	Round 12: Koc, Mert - Kilic, Inanc	12.4	2026.02.20 Kilic, Inanc (51643707)	½	83.80%	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2026.02.20	Round 10: Koc, Mert - Isik, Alparslan	10.2	2026.02.20 Isik, Alparslan (34506896) (2240)	0	-	1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7
2026.02.20	Round 11: Yilmaz Oguz - Koc, Mert	11.4	2026.02.20 Yilmaz Oguz	½	86.40%	1. e4 d5 2. exd5 Qxd5 3. Qf3 Nf6
2026.02.20	Round 9: Tahiroglu, Yunus - Koc, Mert	9.3	2026.02.20 Tahiroglu, Yunus (51682389) (1739)	1	-	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8
2026.02.20	Round 8: Koc, Mert - Makaraci, Tunahan	8.6	2026.02.20 Makaraci, Tunahan (6356559) (2182)	0	-	1. d4 d5 2. c4 e6 3. Nc3 c5
2026.02.20	Round 3: Koc, Mert - Altun, Kadir Ata	3.3	2026.02.20 Altun, Kadir Ata (51643162)	1	-	1. d4 d5 2. c4 e6 3. Nc3 c5
2026.02.20	Round 2: Yurtseven, Melih - Koc, Mert	2.4	2026.02.20 Yurtseven, Melih (6312160) (2229)	0	-	1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8
2026.02.20	Round 1: Koc, Mert - Can Celgin Yagiz	1.3	2026.02.20 Can Celgin Yagiz	1	-	1. d4 d5 2. c4 Nf6 3. Nc3 c6