Prepare against Mateusz Lach
Poland · World #83,083 classical · FIDE ID 21826692
When preparing against Mateusz Lach, expect 1.d4 in 100% of White games. Against 1.e4 the reply is 1...e6 (100% of games); against 1.d4, 1...e6 (100%).
Our database contains 34 games by Mateusz Lach, covering Apr 2014 to Jul 2026. Below you'll find Mateusz Lach's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Mateusz Lach 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 | 1,780 | 1,841 | Apr 2024 |
| Rapid | 1,829 | 1,932 | Mar 2016 |
| Blitz | 1,800 | 1,850 | Oct 2015 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 34 | 9 | 3 | 22 | 26.5% |
| As White | 19 | 5 | 1 | 13 | 26.3% |
| As Black | 15 | 4 | 2 | 9 | 26.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Mateusz Lach's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Mateusz Lach's side.
First moves as White (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 19 | 100.0% | 28.9% |
Main lines as White
- 1.d4 — 100% of White games, 28.9% score
- …Nf6 (74% of these games) — Lach usually continues c4 (17.9% score)
- …d5 (16% of these games) — Lach usually continues c4 (66.7% score)
- …e6 (5% of these games) — Lach usually continues c4 (0.0% score)
As Black against 1.e4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 7 | 100.0% | 42.9% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 4 | 100.0% | 12.5% |
Mateusz Lach's chess games
All 34 games by Mateusz Lach in the Chess.ceo database (Apr 2014 - Jul 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: 9 wins, 3 draws, 22 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A45 | Indian Defense | 8 | 1/0/7 | 12.5% |
| B13 | Benoni Defense | 3 | 0/0/3 | 0.0% |
| E61 | King's Indian Defense | 2 | 1/1/0 | 50.0% |
| E46 | Nimzo-Indian Defense | 1 | 0/0/1 | 0.0% |
| D27 | Queen's Gambit Accepted | 1 | 0/0/1 | 0.0% |
| D40 | Queen's Gambit Declined | 1 | 1/0/0 | 100.0% |
| D31 | Slav Defense | 1 | 1/0/0 | 100.0% |
| A84 | Horwitz Defense | 1 | 0/0/1 | 0.0% |
| B14 | Modern Defense | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C01 | French: Winawer Variation | 3 | 1/0/2 | 33.3% |
| A04 | Réti Opening | 2 | 1/0/1 | 50.0% |
| E06 | English Opening: Neo-Catalan | 1 | 0/0/1 | 0.0% |
| C02 | French: Advance Variation | 1 | 1/0/0 | 100.0% |
| C01 | French Defense | 1 | 1/0/0 | 100.0% |
| C10 | French: Tarrasch Variation | 1 | 0/0/1 | 0.0% |
| A94 | English Opening | 1 | 0/1/0 | 0.0% |
| A80 | Horwitz Defense | 1 | 0/0/1 | 0.0% |
| C00 | King's Indian Attack | 1 | 0/0/1 | 0.0% |
| D02 | Queen's Pawn Game | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2016 | Michal Obrusnik | 2,276 | chT-POL U26 Rapid | E14 |
| Jan 2016 | Mateusz Malaczek | 1,905 | chT-POL U26 Rapid | B14 |
| Jun 2021 | Beniamin Wojciechowski | 1,842 | chT-Subcarpathian | C02 |
| Jun 2021 | Szymon Gaj | 1,838 | chT-Subcarpathian | A04 |
| Jun 2021 | Piotr Ziemniak | 1,796 | chT-Subcarpathian | E61 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT3-POL Podkarpackie | 2016 | 9 | 3.5 | 1,755 |
| chT-Subcarpathian | 2021 | 8 | 4.5 | 1,687 |
| Krakow-ch rapid | 2018 | 4 | 0 | 1,696 |
| ch-EU Rapid | 2021 | 3 | 0.5 | 1,931 |
| chT-POL U26 Rapid | 2016 | 3 | 2 | 2,341 |
| ch-EU Blitz | 2021 | 2 | 0 | 2,139 |
| ch-EU blitz | 2017 | 2 | 0 | 2,239 |
| POL Cup Open Rapid | 2021 | 2 | 0 | 1,910 |
Interactive opening tree from all 34 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Mateusz Lach's chess games?
34 games by Mateusz Lach, from Apr 2014 to Jul 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 Mateusz Lach has played.
What does Mateusz Lach play on the first move as White?
Across 19 games with White in our database, Mateusz Lach opens with 1.d4 (100% of games). Against 1.e4 as Black, Mateusz Lach answers 1...e6 (100% of games). Against 1.d4: 1...e6 (100% of games).
What openings does Mateusz Lach play as White?
As White, Mateusz Lach's most-played openings in our database are: Indian Defense (8 games, 12.5% win rate); Benoni Defense (3 games, 0.0% win rate); King's Indian Defense (2 games, 50.0% win rate). The full breakdown of 19 games with White is in the table above.
What openings does Mateusz Lach play as Black?
As Black, Mateusz Lach most often plays: French: Winawer Variation (3 games, 33.3% win rate); Réti Opening (2 games, 50.0% win rate); English Opening: Neo-Catalan (1 games, 0.0% win rate). See the table above for the top ten Black openings across 15 games.
What is Mateusz Lach's FIDE rating?
Mateusz Lach is currently rated 1,780 in classical chess, 1,829 in rapid and 1,800 in blitz. Peak classical rating: 1,841 (Apr 2024).
How many games has Mateusz Lach played?
Our database contains 34 games by Mateusz Lach, covering Apr 2014 to Jul 2026. Overall record: 9 wins, 3 draws, 22 losses (26.5% win rate).
How do I prepare against Mateusz Lach?
34 games by Mateusz Lach 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.