Festival de Xadrez Amador Regional Nordeste STD U2000
11 players participated in this 5-round tournament, held from 06 Jun 2025 to 08 Jun 2025 in Sao Luis MA, Brazil. Top 10 Elo average was 1833, and top seed was Denilson Da Silva Bezerra (🇧🇷 BRA, 1958).
Antonielson do Vale Sousa (🇧🇷 BRA, 1913) won with 4.0/5, ahead of Jefferson Luis de S. Pereira (3.5) and Jose Wanderley Maciel Silveira (3.5). Sousa won solo starting round 3.
The biggest upset came in round 5: Henrique Haiashi Viana Cantanhede Garcez (1530) beat Denilson Da Silva Bezerra (1958), a +428-point gap.
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How it unfolded
Top 6 · 5 roundsAntonielson do Vale Sousa led from R3; +0.5-point edge over the runner-up.
Antonielson do Vale Sousa held the sole lead from R3 through R5 without losing it.
Antonielson do Vale Sousa beat Jose Wanderley Maciel Silveira (White).
Antonielson do Vale Sousa won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Antonielson do Vale Sousa | * | 1 | ½ | ½ |
| 2Jose Wanderley Maciel Silveira | 0 | * | ½ | — |
| 3Jefferson Luis de S. Pereira | ½ | ½ | * | ½ |
| 4Igor de Souza Melo | ½ | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sousa, Antonielson do Vale | 1913 | BRA | +7B | +11N | +3B | =2N | =4B | 4.0 | 12.0 | 12.0 | 8.75 | 2070 | +16.2 |
| 2 | Pereira, Jefferson Luis de S. | 1932 | BRA | +10N | +6B | =4N | =1B | =3N | 3.5 | 12.5 | 12.5 | 7.25 | 1954 | +5.0 |
| 3 | Silveira,Jose Wanderley Maciel | 1874 | BRA | +5N | +10B | −1N | +6B | =2B | 3.5 | 12.0 | 12.0 | 6.25 | 1976 | +15.4 |
| 4 | Melo, Igor de Souza | 1904 | BRA | +9N | F | =2B | +8B | =1N | 3.0 | 9.0 | 9.0 | 5.25 | 2059 | +16.0 |
| 5 | Bezerra, Denilson Da Silva | 1958 | BRA | −3B | =7N | +10B | +11N | −6N | 2.5 | 7.5 | 7.5 | 1.00 | 1671 | -58.4 |
| 6 | Cantanhede Garcez, Henrique Haiashi Viana | 1530 | BRA | F | −2N | +11B | −3N | +5B | 2.0 | 10.5 | 10.5 | 2.50 | 1786 | +28.8 |
| 7 | Correa, Jose Wilson Ferreira | 1799 | BRA | −1N | =5B | =9N | +10N | F | 2.0 | 8.0 | 8.0 | 1.50 | 1850 | +10.8 |
| 8 | Silva, Ramon Domingos Cunha | 1892 | BRA | F | +9B | F | −4N | F | 1.0 | 7.5 | 7.5 | 0.50 | 1815 | -4.0 |
| 9 | Lobo, Pedro Aluizio De Abreu | 1726 | BRA | −4B | −8N | =7B | F | F | 0.5 | 6.0 | 6.0 | 1.00 | 1592 | -9.0 |
| 10 | Sales,Luis Carlos | 1802 | BRA | −2B | −3N | −5N | −7B | F | 0.0 | 11.5 | 11.5 | 0.00 | 1091 | -30.2 |
| 11 | Dutra, Luis Mauricio Mendes Fonse | 0 | BRA | F | −1B | −6N | −5B | F | 0.0 | 9.0 | 9.0 | 0.00 | 1000 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Cantanhede Garcez, Henrique Haiashi VianaBRA+28.82.0 pts · #7
- 2Sousa, Antonielson do ValeBRA+16.24.0 pts · #3
- 3Melo, Igor de SouzaBRA+16.03.0 pts · #4
- 1Bezerra, Denilson Da SilvaBRA-58.42.5 pts · #6
- 2Sales,Luis CarlosBRA-30.20.0 pts · #10
- 3Lobo, Pedro Aluizio De AbreuBRA-9.00.5 pts · #9
- R5+428 Elo gap