Prepare against Gustaw Siennicki
Poland · World #35,444 classical · FIDE ID 41823427
When preparing against Gustaw Siennicki, expect 1.d4 in 95% of White games. Against 1.e4 the reply is 1...c6 (83% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 44 games by Gustaw Siennicki, covering Feb 2022 to Aug 2026. Below you'll find Gustaw Siennicki's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Gustaw Siennicki before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,957 | 2,060 | Jul 2025 |
| Rapid | 1,985 | 2,082 | Apr 2025 |
| Blitz | 2,007 | 2,141 | Oct 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 44 | 7 | 12 | 25 | 15.9% |
| As White | 22 | 5 | 5 | 12 | 22.7% |
| As Black | 22 | 2 | 7 | 13 | 9.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Gustaw Siennicki's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Gustaw Siennicki's side.
First moves as White (21 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 20 | 95.2% | 37.5% |
| Nf3 | 1 | 4.8% | 0.0% |
Main lines as White
- 1.d4 — 95% of White games, 37.5% score
- …d5 (45% of these games) — Siennicki usually continues c4 (35.7% score)
- …Nf6 (40% of these games) — Siennicki usually continues c4 (41.7% score)
- …e6 (5% of these games) — Siennicki usually continues e4 (0.0% score)
- 1.Nf3 — 5% of White games, 0.0% score
- …d6 (100% of these games) — Siennicki usually continues d4 (0.0% score)
As Black against 1.e4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 10 | 83.3% | 35.0% |
| g6 | 1 | 8.3% | 50.0% |
| e5 | 1 | 8.3% | 50.0% |
As Black against 1.d4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 6 | 100.0% | 16.7% |
Gustaw Siennicki's chess games
All 44 games by Gustaw Siennicki in the Chess.ceo database (Feb 2022 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 7 wins, 12 draws, 25 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E06 | Catalan | 9 | 3/1/5 | 33.3% |
| A43 | Indian Defense | 3 | 1/1/1 | 33.3% |
| D11 | Slav Defense | 2 | 0/1/1 | 0.0% |
| D00 | London System | 2 | 0/1/1 | 0.0% |
| A83 | Dutch Defense | 1 | 0/0/1 | 0.0% |
| A31 | Benoni Defense | 1 | 1/0/0 | 100.0% |
| E15 | Queen's Indian Defense | 1 | 0/1/0 | 0.0% |
| A04 | Réti Opening | 1 | 0/0/1 | 0.0% |
| C12 | French: Classical Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B12 | Caro-Kann: Advance Variation | 4 | 1/0/3 | 25.0% |
| A13 | English Opening | 3 | 0/0/3 | 0.0% |
| B15 | Caro-Kann: Main Line | 3 | 0/2/1 | 0.0% |
| B17 | Caro-Kann: Karpov Variation | 1 | 1/0/0 | 100.0% |
| A46 | Indian Defense | 1 | 0/0/1 | 0.0% |
| D02 | London System | 1 | 0/1/0 | 0.0% |
| B06 | Modern Defense | 1 | 0/1/0 | 0.0% |
| E35 | Nimzo-Indian: Classical Variation | 1 | 0/1/0 | 0.0% |
| E46 | Nimzo-Indian: Rubinstein System | 1 | 0/0/1 | 0.0% |
| C42 | Petrov's Defense | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2026 | Leniart,A | 2,472 | Jana Maciei Mem 2026 | D30 |
| Jul 2025 | Giga Goderdzishvili | 2,158 | Najdorf Mem Open A | B17 |
| Jun 2025 | Artem Dovhan | 2,137 | ch-Malopolska | E04 |
| Jun 2025 | Ryszard Kasperek | 2,100 | ch-Malopolska | B12 |
| Jul 2024 | Malgorzata Bednarska-Bzdega | 1,956 | Warsaw Najdorf Memorial Open A | D72 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Najdorf Mem Open A | 2025 | 9 | 3 | 2,025 |
| 60th Polanica Zdroj Open | 2024 | 8 | 2.5 | 1,844 |
| Warsaw Najdorf Memorial Open A | 2024 | 8 | 2 | 1,841 |
| ch-Malopolska | 2025 | 6 | 2 | 2,036 |
| 61st Rubinstein Mem Open | 2025 | 4 | 0.5 | 1,644 |
| POL-chT 2nd League | 2024 | 3 | 0.5 | 1,794 |
| Jana Maciei Mem 2026 | 2026 | 3 | 1 | 2,046 |
| Warsaw Chess Festival 2026 | Macieja Memorial | 2026 | 1 | 0.5 | 1,886 |
Interactive opening tree from all 44 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Gustaw Siennicki's chess games?
44 games by Gustaw Siennicki, from Feb 2022 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Gustaw Siennicki has played.
What does Gustaw Siennicki play on the first move as White?
Across 21 games with White in our database, Gustaw Siennicki opens with 1.d4 (95% of games), 1.Nf3 (5% of games). Against 1.e4 as Black, Gustaw Siennicki answers 1...c6 (83% of games), 1...g6 (8% of games), 1...e5 (8% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Gustaw Siennicki play as White?
As White, Gustaw Siennicki's most-played openings in our database are: Catalan (9 games, 33.3% win rate); Indian Defense (3 games, 33.3% win rate); Slav Defense (2 games, 0.0% win rate). The full breakdown of 22 games with White is in the table above.
What openings does Gustaw Siennicki play as Black?
As Black, Gustaw Siennicki most often plays: Caro-Kann: Advance Variation (4 games, 25.0% win rate); English Opening (3 games, 0.0% win rate); Caro-Kann: Main Line (3 games, 0.0% win rate). See the table above for the top ten Black openings across 22 games.
What is Gustaw Siennicki's FIDE rating?
Gustaw Siennicki is currently rated 1,957 in classical chess, 1,985 in rapid and 2,007 in blitz. Peak classical rating: 2,060 (Jul 2025).
How many games has Gustaw Siennicki played?
Our database contains 44 games by Gustaw Siennicki, covering Feb 2022 to Aug 2026. Overall record: 7 wins, 12 draws, 25 losses (15.9% win rate).
How do I prepare against Gustaw Siennicki?
44 games by Gustaw Siennicki reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.