II Aberto FIDE PUC Rio Movimento Xadrez
13 players participated in this 6-round tournament, held from 29 Nov 2025 to 07 Dec 2025 in Rio de Janeiro RJ, Brazil. 2 federations represented. Top 10 Elo average was 1434, and top seed was Ivan Frolov (🇷🇺 RUS, 2029).
Arthur Bernardo Reimberg (🇧🇷 BRA, 1905) won with 5.0/6, ahead of Guilherme De Moura Silva (4.5) and Arnaldo Leite Mesquita (4.0). Reimberg took the lead from round 5.
The biggest upset came in round 3: Adnilton Correia de Almeida Nogueira (1633) beat Ivan Frolov (2029), a +396-point gap.
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How it unfolded
Top 6 · 6 roundsArthur Bernardo Reimberg led from R2; +0.5-point edge over the runner-up.
Guilherme De Moura Silva takes the sole lead (3.5/4).
Arthur Bernardo Reimberg lost to Guilherme De Moura Silva (Black).
Arthur Bernardo Reimberg 3 wins (R4–R6)Guilherme De Moura Silva 3 wins (R3–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Arthur Bernardo Reimberg | * | 0 | 1 | — |
| 2Guilherme De Moura Silva | 1 | * | ½ | — |
| 3Arnaldo Leite Mesquita | 0 | ½ | * | — |
| 4Ivan Frolov | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Reimberg, Arthur Bernardo | 1905 | BRA | +9N | +11B | −2N | +6B | +3N | +5B | 5.0 | 16.0 | 16.5 | 12.00 | 1923 | +4.4 |
| 2 | De Moura Silva, Guilherme | 2005 | BRA | +8B | =3N | +1B | +5N | F | +9B | 4.5 | 17.0 | 19.0 | 14.50 | 2029 | +5.2 |
| 3 | Mesquita, Arnaldo Leite | 1756 | BRA | +13N | =2B | +7N | =10B | −1B | +11N | 4.0 | 14.5 | 14.5 | 6.25 | 1843 | +9.0 |
| 4 | Frolov, Ivan | 2029 | RUS | +10N | =7B | −6N | +11B | F | +8N | 3.5 | 10.0 | 10.0 | 6.25 | 1794 | -18.6 |
| 5 | Rivera, Javier Aliaga | 0 | BRA | −6N | +9B | +12N | −2B | +10N | −1N | 3.0 | 16.0 | 16.0 | 4.00 | 1582 | 0.0 |
| 6 | Nogueira, Adnilton Correia de Almeida | 1633 | BRA | +5B | −8N | +4B | −1N | −9B | =10N | 2.5 | 16.0 | 18.0 | 7.50 | 1672 | +0.4 |
| 7 | Laba, Otavio De Souza | 1904 | BRA | +12B | =4N | −3B | +8N | F | F | 2.5 | 14.5 | 14.5 | 4.25 | 1777 | -17.2 |
| 8 | Guttler, Bruno Cravo | 1545 | BRA | −2N | +6B | =11N | −7B | +12N | −4B | 2.5 | 13.5 | 13.5 | 2.75 | 1664 | +14.4 |
| 9 | Rezende, Lucas Da Silva | 0 | BRA | −1B | −5N | F | +12B | +6N | −2N | 2.0 | 15.0 | 15.0 | 2.50 | 1723 | 0.0 |
| 10 | Nunes, Lino Dias | 1559 | BRA | −4B | +12N | F | =3N | −5B | =6B | 2.0 | 13.0 | 13.0 | 3.25 | 1656 | +11.6 |
| 11 | Villardo, Leonardo Abraao I | 0 | BRA | F | −1N | =8B | −4N | F | −3B | 0.5 | 15.0 | 15.0 | 1.25 | 1487 | 0.0 |
| 12 | FIDE 538008360 | 0 | — | −7N | −10B | −5B | −9N | −8B | F | 0.0 | 12.0 | 12.0 | 0.00 | 868 | 0.0 |
| 13 | FIDE 538008351 | 0 | — | −3B | F | F | F | F | F | 0.0 | 6.5 | 6.5 | 0.00 | 956 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Guttler, Bruno CravoBRA+14.42.5 pts · #10
- 2Nunes, Lino DiasBRA+11.62.0 pts · #7
- 3Mesquita, Arnaldo LeiteBRA+9.04.0 pts · #4
- 1Frolov, IvanRUS-18.63.5 pts · #2
- 2Laba, Otavio De SouzaBRA-17.22.5 pts · #6
- 3FIDE 5380083510.00.0 pts · #13
- R3+396 Elo gap
- R3+148 Elo gap