Deyan Samuil Kostov
Country
BUL
Birth Year
2006
Gender
M
Title
FIDE Master
FIDE ID
30909015
FIDE rating history
View rating lists
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-12 (UTC).
Online games are identified from known tournament names, playing sites and PGN mode. Other games are listed as OTB (over-the-board).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-11-27 | 1st 3-0 Thu 27th Nov 2025 | chess.com INT | 5 | Deyan Samuil Kostov | Vidip Kona | 0-1 | 47 | Open |
| 2 | 2025-11-27 | 1st 3-0 Thu 27th Nov 2025 | chess.com INT | 4 | Deyan Samuil Kostov | Timur Nurzhanov | 1-0 | 44 | Open |
| 3 | 2025-11-27 | 1st 3-0 Thu 27th Nov 2025 | chess.com INT | 3 | Dmitriy Kushko | Deyan Samuil Kostov | 1-0 | 27 | Open |
| 4 | 2025-11-27 | 1st 3-0 Thu 27th Nov 2025 | chess.com INT | 2 | Zsigmond Szajbely | Deyan Samuil Kostov | 0-1 | 41 | Open |
| 5 | 2025-11-27 | 1st 3-0 Thu 27th Nov 2025 | chess.com INT | 1 | Deyan Samuil Kostov | Matvey Galchenko | 0-1 | 31 | Open |
| 6 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 8 | Deyan Samuil Kostov | Giovanni Marchesich | 0-1 | 45 | Open |
| 7 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 7 | Jose Felix Calvo Gonzalez | Deyan Samuil Kostov | 0-1 | 57 | Open |
| 8 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 6 | Deyan Samuil Kostov | Ngoc Truong Son Nguyen | 0-1 | 46 | Open |
| 9 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 5 | Deyan Samuil Kostov | Batyrkhan Muratov | 1-0 | 32 | Open |
| 10 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 4 | Miguel Medina Paz | Deyan Samuil Kostov | 0-1 | 40 | Open |
| 11 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 3 | Deyan Samuil Kostov | Leonardo Maglioni | 0-1 | 25 | Open |
| 12 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 2 | David Paravyan | Deyan Samuil Kostov | 1-0 | 40 | Open |
| 13 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 1 | Mariia Dolinskaia | Deyan Samuil Kostov | 0-1 | 44 | Open |
| 14 | 2025-05-20 | Titled Tue 20th May Early | chess.com INT | 1 | Juan Alejandro Leon Acevedo | Deyan Samuil Kostov | 1-0 | 32 | Open |
| 15 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 8 | Santiago Avila Pavas | Deyan Samuil Kostov | 1-0 | 48 | Open |
| 16 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 7 | Deyan Samuil Kostov | Georgijs Germanovs | 1/2-1/2 | 123 | Open |
| 17 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 6 | Kanan Garayev | Deyan Samuil Kostov | 1/2-1/2 | 78 | Open |
| 18 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 5 | Deyan Samuil Kostov | Julian Antonio Rojas Alarcon | 1/2-1/2 | 53 | Open |
| 19 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 4 | Deyan Samuil Kostov | Alexey Kovalchuk | 1-0 | 43 | Open |
| 20 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 3 | William Coe | Deyan Samuil Kostov | 0-1 | 57 | Open |
| 21 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 2 | Deyan Samuil Kostov | Judah Nathan Levitan | 1/2-1/2 | 60 | Open |
| 22 | 2025-03-11 | Titled Tue 11th Mar Early | chess.com INT | 1 | Almas Rakhmatullaev | Deyan Samuil Kostov | 1-0 | 36 | Open |
| 23 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 7 | Aleksandra Goryachkina | Deyan Samuil Kostov | 1-0 | 88 | Open |
| 24 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 6 | Luong Phuong Hanh | Deyan Samuil Kostov | 0-1 | 54 | Open |
| 25 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 5 | Deyan Samuil Kostov | Kirill Kopjonkin | 1-0 | 45 | Open |
| 26 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 4 | Deyan Samuil Kostov | Liam Putnam | 0-1 | 82 | Open |
| 27 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 3 | Jose Garcia Molina | Deyan Samuil Kostov | 0-1 | 28 | Open |
| 28 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 2 | Deyan Samuil Kostov | Jose Gabriel Casares Contreras | 1-0 | 15 | Open |
| 29 | 2025-03-04 | Titled Tue 4th Mar Early | chess.com INT | 1 | Ido Ben Artzi | Deyan Samuil Kostov | 1-0 | 33 | Open |
| 30 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 5 | Deyan Samuil Kostov | Cristobal Henriquez Villagra | 0-1 | 34 | Open |
| 31 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 4 | Deyan Samuil Kostov | Ivano Sundac | 1-0 | 56 | Open |
| 32 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 3 | Hong Jun Lai | Deyan Samuil Kostov | 0-1 | 58 | Open |
| 33 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 2 | Deyan Samuil Kostov | Alan Pichot | 0-1 | 57 | Open |
| 34 | 2025-02-04 | Titled Tue 4th Feb Early | chess.com INT | 1 | Ishvi Aggarwal | Deyan Samuil Kostov | 0-1 | 50 | Open |
| 35 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 9 | Jegor Lashkin | Deyan Samuil Kostov | 1/2-1/2 | 47 | Open |
| 36 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 8 | Deyan Samuil Kostov | David Paravyan | 1-0 | 67 | Open |
| 37 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 7 | Fidel Corrales Jimenez | Deyan Samuil Kostov | 1-0 | 31 | Open |
| 38 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 6 | Deyan Samuil Kostov | Dmitry Goltsev | 1-0 | 67 | Open |
| 39 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 5 | Sediney Mari Da Silva Junior | Deyan Samuil Kostov | 0-1 | 38 | Open |
| 40 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 4 | Deyan Samuil Kostov | Bartosz Przybylski | 1-0 | 42 | Open |
| 41 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 3 | Arsen Kukhmazov | Deyan Samuil Kostov | 1-0 | 19 | Open |
| 42 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 2 | Deyan Samuil Kostov | Paul Rosales Campos | 1-0 | 56 | Open |
| 43 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 1 | Adan Alvarez Perez | Deyan Samuil Kostov | 1/2-1/2 | 66 | Open |
| 44 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 11 | Satria Duta Cahaya | Deyan Samuil Kostov | 0-1 | 69 | Open |
| 45 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 10 | Deyan Samuil Kostov | Aleksey Dreev | 1/2-1/2 | 52 | Open |
| 46 | 2024-09-17 | Titled Tue 17th Sep Late | chess.com INT | 9 | Santiago Ospina Castro | Deyan Samuil Kostov | 0-1 | 56 | Open |
| 47 | 2024-09-17 | Titled Tue 17th Sep Late | chess.com INT | 8 | Deyan Samuil Kostov | Cedric Chassard | 0-1 | 73 | Open |
| 48 | 2024-09-17 | Titled Tue 17th Sep Late | chess.com INT | 7 | Carlos Alvarado | Deyan Samuil Kostov | 0-1 | 56 | Open |
| 49 | 2024-09-17 | Titled Tue 17th Sep Late | chess.com INT | 6 | Tyrell Harriott | Deyan Samuil Kostov | 1-0 | 55 | Open |
| 50 | 2024-09-17 | Titled Tue 17th Sep Late | chess.com INT | 5 | Deyan Samuil Kostov | Alisa Genrietta Yunker | 1/2-1/2 | 48 | Open |
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