Mikolaj Tomczak
IMPolandborn 1999FIDE ID 1175114
Rating & statistics
FIDE rating lists · Sep 2023 – Sep 20262420
2460
2500
2440 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2500Blitz
2470Rapid
2440Classical
2451peak, Nov 2018
559games
249wins, 45%
184draws, 33%
126losses, 23%
Play style
before facing themWhat you need to know before facing themElite accuracy: 94.3% average
High resilience (72%): Dangerous even when losing
Solid conversion: 81%
Very consistent (91%)
Very precise: only 0.0 blunders/game
Dominates 1.d4 as 
(65% in 130 games)
(65% in 130 games)Vulnerable to 1.c4 
(only 40%)
(only 40%)Play against Tomczak's Twin
Their real openings, level & style
Practice against a bot that uses their real openings and playing style
Based on 559 games
Openings
559 gamesBased on 559 player gamesWeaknesses
where they slip as ♔ WhiteRuy Lopez: Morphy1.e4 e5 2.♞f3 ♞c6 3.♝b5 a6only 9 games, last played 5 years ago44.4%losses
Strengths
what holds up for them as ♔ WhiteSlav Defense1.d4 d5 2.c4 c618 games, last played 5 years ago55.6%wins
Deep analysis
Stockfish · Classical · 69 analyzedStockfish · Classical games · 69 analyzedAccuracy by phase
Opening
96.5%
Middlegame
94.2%
Endgame
95.4%
Clutch factor
+6%Winning (+2)Winning (+2)
95%30g
EqualEqual position
95%34g
Losing (−2)Losing (−2)
89%5g
Accuracy under pressure barely drops when losing.
Problematic pieces
27%
12 err
18%
8 err
16%
7 err
16%
7 err
13%
6 err
11%
5 err
Critical moment
Move 36 avg0%
0%
50%
50%
0%
50% of blunders occur after move 26-35. Keep tension until then.of blunders occur after move 26-35. Keep tension until then.
Error heatmap · Critical squaresError heatmap
4
5
FewMany
23Errors mapped
e1 / g5Hotspot zone
e1
55 err
g5
44 err
d5
22 err
e4
22 err
e5
22 err
e1/g5 concentrate most errors. Force decisions in those zones.
e1/g5 concentrate most errors. Force decisions in those zones.
Critical blunders
9 errors · Stockfish#37
♛d6+?? vs Skawinski
Endgame · OTB · 2021
#36
♝xb4?? vs Molenda
Endgame · OTB · 2020
#26
♛h6?? vs Kindler
Middlegame · OTB · 2020
#31
c4?? vs Tomaszewski
Middlegame · OTB · 2020
#42
♚g3?? vs Esipenko
Endgame · Blitz · 2020
#40
♚e1?? vs Ynojosa Aponte
Endgame · OTB · 2020
Recent games
559 gamesOzen, Batuhan(2128)
Titled Tue 8th Jul Late · 8 Jul 2025
Tahbaz, Arash(2462)
Titled Tue 8th Jul Late · 8 Jul 2025
Uzcategui Rodriguez, Alejandro(2308)
Titled Tue 8th Jul Late · 8 Jul 2025
Bharath Subramaniyam H(2561)
Titled Tue 8th Jul Late · 8 Jul 2025
Squella Lavin, Carlos Felipe(2206)
Titled Tue 8th Jul Late · 8 Jul 2025
Garcia Garcia, Adrian Antonio(2140)
Titled Tue 18th Feb Late · 18 Feb 2025
Endgame statistics
22 endgames (33.8%) · force Rook + Minor (0%)Unlock Endgame Statistics
All their endgames: discover where they collapse under pressure
Repertoire
PROTime controls · Years · Events
559 games in scope
8
76
5
4
3
2
1a
b
c
defghExplore the repertoireevery move played, ranked by frequency
280 games49%W31%D20%L
280games in this linewon 49%, drew 31%, lost 20%
Move
1. d4
1301y54%23%23%
65%1. e4
895y48%33%19%
65%1. ♞f3
475y40%49%11
65%1. c4
117y45%55%0
73%1. b3
38y33%067%
33%