Sergey Demyanchuk
POR · FIDE ID 1937251 · 16 tournament games since 2021
Standard
1872
#301 in POR (active)
Rapid
1947
#179 in POR (active)
Blitz
1787
#399 in POR (active)
Score
22%
2 W · 3 D · 11 L
Opp. avg
1988
Last 16 games
Last game
2026-09-05
Portuguese National Amateur Championship 2025-26
Prep summary
- As White: 1.e4 in 100% of games (scores 25%).
- Against 1.e4: 1...e5 in 4 of 4 games (King's Pawn Game), scoring 25%.
- Against 1.d4: 1...d5 in 3 of 3 games (Queen's Pawn Game), scoring 17%.
- Weak spot: Italian Game: Classical Variation, Giuoco Pianissimo as Black, only 33% in 3 games.
- By opponent strength: 0% against higher-rated players, 50% against lower-rated.
Based on 16 over-the-board games (10 classical). 8 with White (25%), 8 with Black (19%).
Openings as White
First move
| 1.e4 | 8 | 25% |
Most played
| Opening | Games | Score |
|---|---|---|
| Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | 2 | 50% |
| Owen Defense | 1 | 50% |
| Caro-Kann Defense: Tartakower Variation | 1 | 50% |
| Sicilian Defense: Alapin Variation, Smith-Morra Declined | 1 | 0% |
| Modern Defense: Standard Line | 1 | 0% |
Openings as Black
Against 1.e4 (4 games)
| 1...e5 King's Pawn Game | 4 | 25% |
Against 1.d4 (3 games)
| 1...d5 Queen's Pawn Game | 3 | 17% |
Most played
| Opening | Games | Score |
|---|---|---|
| Italian Game: Classical Variation, Giuoco Pianissimo | 3 | 33% |
| Queen's Pawn Game: Accelerated London System | 1 | 50% |
| Queen's Gambit Declined: Anti-Tartakower Variation | 1 | 0% |
| Scotch Game: Göring Gambit, Double Pawn Sacrifice | 1 | 0% |
| Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-09-05 | Antonio Guilherme Goncalves (1628) Portuguese National Amateur Championship 2025-26 · classical | ½ |
| 2026-09-05 | Benjamim Viegas Valente (1765) Portuguese National Amateur Championship 2025-26 · classical | W |
| 2026-09-04 | Rodrigo Fernandes (1661) Portuguese National Amateur Championship 2025-26 · classical | W |
| 2026-09-04 | Jose Oliveira Gaspar Dias (1612) Portuguese National Amateur Championship 2025-26 · classical | ½ |
| 2026-09-03 | Klaus Izidoro (1657) Portuguese National Amateur Championship 2025-26 · classical | L |
| 2026-09-02 | Klim Kolyvanov (1699) Portuguese National Amateur Championship 2025-26 · classical | ½ |
| 2026-07-22 | Titus Bittner (2085) XIII Torneio Internacional Cidade de Famalicão · classical | L |
| 2026-07-21 | Yaniela Forgas Moreno (2237) XIII Torneio Internacional Cidade de Famalicão · classical | L |
| 2025-07-26 | Paulo Pinho (2062) XII Torneio Internacional da Cidade de Famalicão · classical | L |
| 2025-07-22 | Irakli Akhvlediani (2408) XII Torneio Internacional da Cidade de Famalicão · classical | L |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.