Chess tournament for kids CUP SOFIA, Under the aegis of BSCF
Open SwissStandard
18 players participated in this 7-round tournament, held from 24 May 2025 to 25 May 2025 in Sofia, Bulgaria. Top 10 Elo average was 906, and top seed was Nikola N. Chalakov (🇧🇬 BUL, 1590).
Tsvetan Danev (🇧🇬 BUL, 1474) won with 5.5/7, ahead of Georgi S Stefanov (5.5) and Atanas Mirchev (5.0). Danev shared the lead from round 4, winning on tie-break.
Location
🇧🇬Sofia, Bulgaria
Dates
24 May 2025 → 25 May 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Federations · 1 represented
🇧🇬Bulgaria×16
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R5; 2 players tied at 5.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Co-leaders
9
4
1
2
1
1
2
R5 · LEADER CHANGE25 May
Tsvetan Danev takes the sole lead (4.5/5).
R7 · TIEBREAK CLUSTER
2 players finish on 5.5/7. Danev takes the title on Buchholz Cut1 (28.0).
R7 · HEAD-TO-HEAD · WINNER VS 2ND
Tsvetan Danev lost to Georgi S Stefanov (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Tsvetan Danev | * | 0 | 1 | 1 |
| 2Georgi S Stefanov | 1 | * | ½ | 0 |
| 3Atanas Mirchev | 0 | ½ | * | — |
| 4Velizar Petkov | 0 | 1 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Danev, Tsvetan | 1474 | BUL | +16B | +9N | =5B | +6B | +3N | +4B | −2N | 5.5 | 28.0 | 30.5 | 22.75 | 1515 | +4.8 |
| 2 | Stefanov, Georgi S | 1507 | BUL | +13N | =3B | −4N | +9B | +15N | +5B | +1B | 5.5 | 26.5 | 29.0 | 21.50 | 1494 | -2.4 |
| 3 | Mirchev, Atanas | 0 | BUL | +7B | =2N | +14B | +5N | −1B | +11N | =6B | 5.0 | 27.0 | 30.0 | 19.50 | 1509 | 0.0 |
| 4 | Petkov, Velizar | 1515 | BUL | +12B | −5N | +2B | +17N | +11B | −1N | +15B | 5.0 | 24.0 | 26.0 | 16.00 | 1630 | +18.4 |
| 5 | Iliev, Iliya Iliev | 0 | BUL | +8N | +4B | =1N | −3B | +6N | −2N | +10B | 4.5 | 29.5 | 33.0 | 19.75 | 1543 | 0.0 |
| 6 | Dokov, David | 0 | BUL | +?B | +?N | +11B | −1N | −5B | +12N | =3N | 4.5 | 21.0 | 21.0 | 8.50 | 1500 | 0.0 |
| 7 | Kotsev, Momchil | 1442 | BUL | −3N | +10B | −13N | +16B | =9N | =8B | +12N | 4.0 | 22.0 | 24.5 | 12.75 | 1589 | +8.0 |
| 8 | Chalakov, Nikola N. | 1590 | BUL | −5B | +18N | −9B | +14N | =12B | =7N | +11B | 4.0 | 21.0 | 23.0 | 11.50 | 1677 | +8.4 |
| 9 | Statkov, Kaloyan | 0 | BUL | +?B | −1B | +8N | −2N | =7B | −15N | +?B | 3.5 | 21.5 | 21.5 | 6.00 | 1418 | 0.0 |
| 10 | Petrov, Vladimir M. | 0 | BUL | =18B | −7N | +?B | −12N | +?B | +13B | −5N | 3.5 | 16.5 | 16.5 | 4.00 | 641 | 0.0 |
| 11 | Mladenov, Bozhidar | 1527 | BUL | +17N | +14B | −6N | +13B | −4N | −3B | −8N | 3.0 | 24.5 | 26.5 | 8.00 | 752 | -37.2 |
| 12 | Kirilov, Boris | 0 | BUL | −4N | +?B | =15N | +10B | =8N | −6B | −7B | 3.0 | 23.5 | 23.5 | 6.75 | 1242 | 0.0 |
| 13 | Kotsev, Kalin | 0 | BUL | −2B | +?N | +7B | −11N | +17B | −10N | −14B | 3.0 | 21.0 | 21.0 | 6.00 | 1370 | 0.0 |
| 14 | Choranov, Borislav | 0 | BUL | +15B | −11N | −3N | −8B | F | +17B | +13N | 3.0 | 19.5 | 19.5 | 7.50 | 758 | 0.0 |
| 15 | Shapkov, Boris | 0 | BUL | −14N | F | =12B | +18N | −2B | +9B | −4N | 2.5 | 22.0 | 22.0 | 7.00 | 715 | 0.0 |
| 16 | Lesov, Mihail | 0 | BUL | −1N | −17B | F | −7N | +18B | =?N | +?N | 2.5 | 13.5 | 13.5 | 2.00 | 657 | 0.0 |
| 17 | FIDE 2961571 | 0 | — | −11B | +16N | +?B | −4B | −13N | −14N | F | 2.0 | 16.5 | 16.5 | 2.50 | 721 | 0.0 |
| 18 | FIDE 2969416 | 0 | — | =10N | −8B | =?N | −15B | −16N | F | +?B | 2.0 | 12.5 | 12.5 | 1.75 | 789 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Petkov, VelizarBUL+18.45.0 pts · #3
- 2Chalakov, Nikola N.BUL+8.44.0 pts · #4
- 3Kotsev, MomchilBUL+8.04.0 pts · #11
Top rating losers
- 1Mladenov, BozhidarBUL-37.23.0 pts · #17
- 2Stefanov, Georgi SBUL-2.45.5 pts · #7
- 3Mirchev, AtanasBUL0.05.0 pts · #1