Player profile

Sideris, Theodoros

Standard: 1865 Rapid: 1867 Blitz: 1796 (last updated 2026-11-02)

FIDE ID: 4203704 (view FIDE profile)

Federation: GRE Sex: M Birth Year: 1965 Age: 61

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

Games: 19 Wins: 5 (26%) Draws: 1 (5%) Losses: 12 (63%) Other: 1

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Dossier

18 of 19 games analyzed.

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Openings

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As White 5 games 0W 1D 4L

Sicilian Defense 2 games 0W 1D 1L

Alapin Variation 1 game 0W 0D 1L

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

Old Sicilian 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

French Defense 2 games 0W 0D 2L

Advance Variation 2 games 0W 0D 2L

Paulsen Attack 1 game 0W 0D 1L

Euwe Variation 1 game 0W 0D 1L

Nimzowitsch Defense 1 game 0W 0D 1L

Scandinavian Variation 1 game 0W 0D 1L

Advance Variation 1 game 0W 0D 1L

As Black 8 games 3W 0D 5L

Sicilian Defense 5 games 3W 0D 2L

Grand Prix Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Accelerated Dragon 1 game 1W 0D 0L

Modern Variation 1 game 1W 0D 0L

Closed 1 game 1W 0D 0L

Traditional 1 game 1W 0D 0L

Czerniak Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Nyezhmetdinov-Rossolimo Attack 1 game 1W 0D 0L

Fianchetto Variation 1 game 1W 0D 0L

English Opening 2 games 0W 0D 2L

Symmetrical Variation 1 game 0W 0D 1L

Full Symmetry Line 1 game 0W 0D 1L

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

Closed System 1 game 0W 0D 1L

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

Makogonov Variation 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 79

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

2023.09.16 · 51... Rd6 (−36.5% win chance) 0-1

Sideris, Theodoros

Kotsifis, Emmanouel

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2023.09.16 · 35... Kf7 (−27.4% win chance) 0-1

Sideris, Theodoros

Kotsifis, Emmanouel

Engine View game

2026.08.31 · 22. f4 (−24.6% win chance) 0-1

Kotronias, Vasilios

Sideris, Theodoros

Engine View game

2023.06.19 · 33. Nxe6 (−23.6% win chance) 0-1

Vasilios Fragkos

Theodoros Sideris

Engine View game

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Games Showing all 19 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.08.31	Round 1: Sideris, Theodoros - Kotronias, Vasilios	1.2	2026.08.31 Kotronias, Vasilios (5900212) (2370)	0	91.30%	1. e4 c5 2. d4 cxd4 3. c3 Nf6
2026.08.30	Round 7: Karathanasis, Vlasis - Sideris, Theodoros	7.4	2026.08.30 Karathanasis, Vlasis (4243030) (2024)	0	-	1. e4 c5 2. Nc3 Nc6 3. f4 g6
2026.08.29	Round 6: Michas, Iasonas - Sideris, Theodoros	6.10	2026.08.29 Michas, Iasonas (42174287) (1613)	1	92.60%	1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
2026.08.28	Round 5: Sideris, Theodoros - Papadopoulos, Agathaggelos	5.2	2026.08.28 Papadopoulos, Agathaggelos (4210506) (2063)	0	89.60%	1. e4 e6 2. d4 d5 3. e5 c5
2026.08.27	Round 4: Loukopoulos, Panagiotis-Athanasi - Sideris, Theodoros	4.6	2026.08.27 Loukopoulos, Panagiotis-Athanasi (4293835) (2112)	1	90.20%	1. e4 c5 2. Nc3 Nc6 3. Bb5 g6
2026.08.25	Round 2: Nikolaou, Georgios - Sideris, Theodoros	2.3	2026.08.25 Nikolaou, Georgios (4203801) (2149)	0	89.40%	1. Nf3 Nf6 2. c4 c5 3. g3 Nc6
2026.06.16	Round 3: Tsamtsouris, Efthymios - Sideris, Theodoros	3.9	2026.06.16 Tsamtsouris, Efthymios (25889095) (1892)	0	86.70%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7
2026.01.05	Round 5: Asvestas, Emmanouil - Sideris, Theodoros	5.2	2026.01.05 Asvestas, Emmanouil (25847180) (2047)	0	82.30%	1. e4 c5 2. b3 Nc6 3. Bb2 e5
2026.01.04	Round 4: Sideris, Theodoros - Antoniadis, Artiom	4.4	2026.01.04 Antoniadis, Artiom (25823566) (1929)	½	92.70%	1. e4 c5 2. Nf3 Nc6 3. c3 Nf6
2025.09.04	Round 4: Sideris, Theodoros - Vassis, Michail	4.7	2025.09.04 Vassis, Michail (25849018) (2313)	0	79.10%	1. e4 e6 2. d4 d5 3. e5 c5
2024.06.21	Round 7: Chompas, Vasileios - Sideris, Theodoros		2024.06.21 Chompas, Vasileios (42142377) (1843)	1	93.50%	1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
2024.06.19	Round 5: Finokaliotis, Georgios - Sideris, Theodoros		2024.06.19 Finokaliotis, Georgios (4217144) (2128)	0	94.10%	1. c4 e5 2. g3 Nc6 3. Bg2 g6
2024.06.16	Round 2: Sideris, Theodoros - Kapnisis, Spyridon		2024.06.16 Kapnisis, Spyridon (4203445) (2400)	0	92.40%	1. e4 Nc6 2. d4 d5 3. e5 Bf5
2023.09.17	13th Papanastasio Open 2023	7	2023.09.17 Alexakis, Georgios (4255038) (2192)	0	90.80%	1. e4 c5 2. Nf3 Nc6 3. b3 d6
2023.09.16	13th Papanastasio Open 2023	6	2023.09.16 Kotsifis, Emmanouel (25818325) (1354)	1	88.00%	1. c4 e5 2. Nc3 Nc6 3. g3 g6
2023.09.15	13th Papanastasio Open 2023	5	2023.09.15 Nikolaou, Georgios (4203801) (2198)	*	91.90%	1. Nf3 Nf6 2. c4 e6 3. g3 b6
2023.09.14	13th Papanastasio Open 2023	4	2023.09.14 Gavriil, Dimitrios (25893793) (1283)	1	91.20%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2023.06.25	Round 9: Theodoros Sideris - Nikolaos Poupalos		2023.06.25 Nikolaos Poupalos	0	94.60%	1. e4 e6 2. d4 d5 3. Nd2 c5
2023.06.19	Round 3: Theodoros Sideris - Vasilios Fragkos		2023.06.19 Vasilios Fragkos	0	83.70%	1. e4 c6 2. d4 d5 3. e5 c5