IMMarcin Sieciechowicz
POL · FIDE ID 1130170 · 275 tournament games since 2020
Standard
2378
#86 in POL (active)
Rapid
2344
#77 in POL (active)
Blitz
2336
#84 in POL (active)
Score
63%
119 W · 106 D · 50 L
Opp. avg
2269
Last 50 games
Last game
2026-09-13
Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga)
Prep summary
- As White: 1.d4 in 91% of games (scores 72%).
- Against 1.e4: 1...c5 in 28 of 65 games (Sicilian Defense), scoring 66%.
- Against 1.d4: 1...Nf6 in 23 of 42 games (Indian Defense), scoring 59%.
- Comfort zone: Queen's Gambit Declined: Exchange Variation, Positional Variation as White, 88% in 8 games.
- By opponent strength: 35% against higher-rated players, 77% against lower-rated.
- By colour: 72% with White, 54% with Black.
Based on 275 over-the-board games (31 rapid · 16 classical · 11 blitz). 137 with White (72%), 138 with Black (54%).
Openings as White
First move
| 1.d4 | 124 | 72% |
| 1.Nf3 | 9 | 50% |
| 1.b3 | 4 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Indian Defense: Classical Variation | 11 | 64% |
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 8 | 88% |
| Indian Defense: Accelerated London System | 8 | 56% |
| Nimzo-Indian Defense: Classical Variation, Noa Variation | 6 | 67% |
| Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | 6 | 92% |
Openings as Black
Against 1.e4 (65 games)
| 1...c5 Sicilian Defense | 28 | 66% |
| 1...e6 French Defense | 24 | 48% |
| 1...e5 King's Pawn Game | 13 | 62% |
Against 1.d4 (42 games)
| 1...Nf6 Indian Defense | 23 | 59% |
| 1...d5 Queen's Pawn Game | 19 | 45% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation | 4 | 63% |
| Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation | 4 | 50% |
| Sicilian Defense: Moscow Variation | 4 | 88% |
| French Defense: Tarrasch Variation, Chistyakov Defense | 4 | 25% |
| Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | 3 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-09-13 | Floryan Eugene (2512) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-11 | Igor Janik (2531) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | L |
| 2026-09-10 | Piotr Bobras (2432) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-09 | Witold Klepek (2305) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-08 | Pawel Czarnota (2462) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-07 | Vasyl Ivanchuk (2630) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | L |
| 2026-09-06 | Filip Luczak (2358) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-05 | Robert Kempinski (2513) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-09-05 | Piotr Kejna (2363) Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | ½ |
| 2026-08-14 | Matic Lavrencic (2490) 24th Int. Chess Tournament Spilimbergo 2026 · 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.