♞ Chess.ceo

Prepare against Mikolaj Kowalczuk

Poland · World #25,547 classical · FIDE ID 1128671

Our database contains 79 games by Mikolaj Kowalczuk, covering Apr 2009 to Jul 2026. Below you'll find Mikolaj Kowalczuk's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Mikolaj Kowalczuk 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 controlCurrentPeakPeak date
Classical2,0142,029Feb 2023
Rapid1,9941,994Jul 2026
Blitz1,9482,019Jun 2026

Performance record

SplitGamesWinsDrawsLossesWin rate
Overall7928163535.4%
As White401591637.5%
As Black391371933.3%

Move-by-move preparation stats

Straight from the preparation tree built over all of Mikolaj Kowalczuk's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Mikolaj Kowalczuk's side.

First moves as White (40 games)

MoveGamesSharePlayer score
d43485.0%51.5%
e4410.0%37.5%
c412.5%0.0%
Nf312.5%50.0%

Main lines as White

As Black against 1.e4 (20 games)

MoveGamesSharePlayer score
c51785.0%47.1%
e6315.0%0.0%

As Black against 1.d4 (12 games)

MoveGamesSharePlayer score
Nf612100.0%50.0%

Mikolaj Kowalczuk's chess games

All 79 games by Mikolaj Kowalczuk in the Chess.ceo database (Apr 2009 - 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: 28 wins, 16 draws, 35 losses.

Openings as White

ECOOpeningGamesW/D/LWin rate
D37Indian Defense73/1/342.9%
A56Benoni Defense52/2/140.0%
A45London System40/1/30.0%
D45Slav Defense42/0/250.0%
D53Queen's Gambit Declined33/0/0100.0%
A57King's Indian Defense: Orthodox Variation21/0/150.0%
A52Budapest Defense20/1/10.0%
E32Nimzo-Indian: Classical Variation21/0/150.0%
E40Nimzo-Indian: Rubinstein System20/1/10.0%
B21Sicilian: Smith-Morra Gambit21/0/150.0%

Openings as Black

ECOOpeningGamesW/D/LWin rate
B88Sicilian: Najdorf83/1/437.5%
A57Benoni Defense64/0/266.7%
A24English Opening50/3/20.0%
A21English Opening: Reverse Sicilian31/1/133.3%
B53Sicilian31/0/233.3%
B25Sicilian: Closed22/0/0100.0%
A32Indian Defense20/0/20.0%
B35Sicilian: Accelerated Dragon10/0/10.0%
B22Sicilian: Alapin10/0/10.0%
B52Sicilian: Moscow Variation10/1/00.0%

Notable wins

DateOpponentEloEventECO
Dec 2010Marcin Bernat2,170chT-POL3 2010/11E32
Mar 2010Radoslaw Szusterowski2,069ch-POL U18A77
Mar 2010Maciej Koziej2,010ch-POL U18D07
Jan 2011Miroslaw Sobczak1,975chT-POL3 2010/11B96
Jan 2012Robert Mantorski1,961chT3-POL Wielkopolska 1112E10

Top events

EventYearGamesScoreTPR
chT-POL3 2010/1120111151,976
chT3-POL Wielkopolska 111220121161,970
ch-POL U1820101162,052
21st Poznan Open201194.51,676
POL-chT U19 2nd League2010961,861
Wroclaw Anderssen Memorial Open2020811,898
chT-POL 3rd League Wielkopolska 12/13201373.51,890
ch-POL Liga3 U18200952.51,707
Prepare against Mikolaj Kowalczuk — free

Interactive opening tree from all 79 games, weak-spot detection and engine analysis.

Start preparation

Frequently asked questions

Where can I find Mikolaj Kowalczuk's chess games?

79 games by Mikolaj Kowalczuk, from Apr 2009 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 Mikolaj Kowalczuk has played.

What does Mikolaj Kowalczuk play on the first move as White?

Across 40 games with White in our database, Mikolaj Kowalczuk opens with 1.d4 (85% of games), 1.e4 (10% of games), 1.c4 (3% of games). Against 1.e4 as Black, Mikolaj Kowalczuk answers 1...c5 (85% of games), 1...e6 (15% of games). Against 1.d4: 1...Nf6 (100% of games).

What openings does Mikolaj Kowalczuk play as White?

As White, Mikolaj Kowalczuk's most-played openings in our database are: Indian Defense (7 games, 42.9% win rate); Benoni Defense (5 games, 40.0% win rate); London System (4 games, 0.0% win rate). The full breakdown of 40 games with White is in the table above.

What openings does Mikolaj Kowalczuk play as Black?

As Black, Mikolaj Kowalczuk most often plays: Sicilian: Najdorf (8 games, 37.5% win rate); Benoni Defense (6 games, 66.7% win rate); English Opening (5 games, 0.0% win rate). See the table above for the top ten Black openings across 39 games.

What is Mikolaj Kowalczuk's FIDE rating?

Mikolaj Kowalczuk is currently rated 2,014 in classical chess, 1,994 in rapid and 1,948 in blitz. Peak classical rating: 2,029 (Feb 2023).

How many games has Mikolaj Kowalczuk played?

Our database contains 79 games by Mikolaj Kowalczuk, covering Apr 2009 to Jul 2026. Overall record: 28 wins, 16 draws, 35 losses (35.4% win rate).

How do I prepare against Mikolaj Kowalczuk?

79 games by Mikolaj Kowalczuk 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.

Similarly rated players