Ireneus, Dr. Kostowski
GER · FIDE ID 4689615 · 24 tournament games since 2024
Standard
1825
#7183 in GER (active)
Rapid
–
Unrated
Blitz
–
Unrated
Score
50%
10 W · 4 D · 10 L
Opp. avg
1760
Last 24 games
Last game
2026-08-21
Rubinstein Chess Festival 2026 - Open C
Prep summary
- As White: 1.d4 in 100% of games (scores 50%).
- Against 1.e4: 1...d5 in 3 of 4 games (Scandinavian Defense), scoring 67%.
- Against 1.d4: 1...Nf6 in 4 of 6 games (Indian Defense), scoring 25%.
- Comfort zone: Queen's Pawn Game: London System as White, 88% in 4 games.
Based on 24 over-the-board games (16 classical). 14 with White (50%), 10 with Black (50%).
Openings as White
First move
| 1.d4 | 14 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Queen's Pawn Game: London System | 4 | 88% |
| Rapport-Jobava System | 2 | 50% |
| Indian Defense: Accelerated London System | 2 | 25% |
| Indian Defense: London System | 1 | 0% |
| Queen's Pawn Game: Accelerated London System | 1 | 0% |
Openings as Black
Against 1.e4 (4 games)
| 1...d5 Scandinavian Defense | 3 | 67% |
| 1...c5 Sicilian Defense | 1 | 50% |
Against 1.d4 (6 games)
| 1...Nf6 Indian Defense | 4 | 25% |
| 1...d5 Queen's Pawn Game | 2 | 75% |
Most played
| Opening | Games | Score |
|---|---|---|
| Benoni Defense: Modern Variation | 2 | 50% |
| Sicilian Defense: Alapin Variation, Barmen Defense | 1 | 50% |
| Scandinavian Defense: Portuguese Gambit, Correspondence Refutation | 1 | 100% |
| English Opening: Symmetrical Variation, Anti-Benoni Variation | 1 | 0% |
| Scandinavian Defense: Portuguese Gambit, Melbourne Shuffle Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-21 | Maksymilian Solski (1665) Rubinstein Chess Festival 2026 - Open C · classical | L |
| 2026-08-20 | Jakub Wisniarek (1716) Rubinstein Chess Festival 2026 - Open C · classical | L |
| 2026-08-19 | Tatiana Rybka (1763) Rubinstein Chess Festival 2026 - Open C · classical | ½ |
| 2026-08-18 | Szymon Wajer (1742) Rubinstein Chess Festival 2026 - Open C · classical | ½ |
| 2026-08-17 | Wojciech Brudzynski (1934) Rubinstein Chess Festival 2026 - Open C · classical | L |
| 2026-08-16 | Grzegorz Borowik (1511) Rubinstein Chess Festival 2026 - Open C · classical | W |
| 2026-08-15 | Bartlomiej Stawecki (1653) Rubinstein Chess Festival 2026 - Open C · classical | W |
| 2025-08 | Dominika Trybus (1870) Rubinstein Chess Festival 2025 - Open B · classical | L |
| 2025-08 | Jan Bednarski (1795) Rubinstein Chess Festival 2025 - Open B · classical | W |
| 2025-08 | Karol Szwed (1798) Rubinstein Chess Festival 2025 - Open B · classical | W |
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.