Scouting report: Mikolaj Tomczak (IM, POL)

559 over-the-board games in the Chess Stalker database (446 classical, 25 rapid, 88 blitz): 45% wins, 33% draws, 23% losses. FIDE rating 2440 standard, 2470 rapid, 2500 blitz. 69 games analyzed with Stockfish: 94% accuracy, 0.04 blunders per game.

Opening repertoire of Mikolaj Tomczak as White and Black, with results per line — free.
Weaknesses and blunder patterns, evaluated with Stockfish — free.
Recent over-the-board games and endgame statistics.
Twin Bot: a sparring bot that imitates Mikolaj Tomczak's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1175114 — no account needed.

Mikolaj Tomczak

TitleInternational MasterFederationPolandBorn1999FIDE ID1175114

Classical2440

Rapid2470

Blitz2500

Games559

W · D · LWon · Drawn · Lost45 / 33 / 23

Peak2451Nov 2018

Rating history

2420

2460

2500

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2440Rapid2470Blitz2500no games played

Accuracy by phase

96.5%Opening94.2%Middlegame95.4%Endgame

Clutch factor

Insufficient data

Play style

Elite 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)

Vulnerable to 1.c4

(only 40%)

Recent games

Tahbaz, Arash(2462)

Titled Tuesday Late · 8 Jul 2025

0–1

Squella Lavin, Carlos Felipe(2206)

Titled Tuesday Late · 8 Jul 2025

1–0

Ozen, Batuhan(2128)

Titled Tuesday Late · 8 Jul 2025

1–0

Uzcategui Rodriguez, Alejandro(2308)

Titled Tuesday Late · 8 Jul 2025

0–1

Bharath Subramaniyam H(2561)

Titled Tuesday Late · 8 Jul 2025

1–0

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

Based on 559 games

Openings

280 games as White · scores 65.0%

Weaknesses

where they slip as ♔ White

Ruy 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 ♔ White

Slav Defense1.d4 d5 2.c4 c618 games, last played 5 years ago55.6%wins

By family

open a family to see its lines

PROTime controls · Years · Events

559 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 65.0%

A01–A04505y

40%46%14

63.0%—

B20–B50425y

50%31%19

65.5%—

D31–D35251y

44%36%20%

62.0%−3.0 pts

A45–E11222y

64%23%13

75.0%+10.0 pts

E60–E70186y

50%22%28%

61.1%—

D10–D11185y

56%28%16

69.4%—

A40–D02161y

69%25%

71.9%—

C60–C70137y

31%38%31%

50.0%—

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

Couldn't load this.

Endgame statistics

22 endgames (33.8%) · force Rook + Minor (0%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

33.8%

22 / 65

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

56%44%

77.9%353g

R+Bishop vs R+Knight

59%41%

79.4%306g

Rook vs Minor (Exchange)

49%50%

73.7%281g

Rook vs Rook

48%50%

72.6%252g

Rook vs Two Minors

56%44%

78.1%160g

Pure Pawn

36%50%14

60.6%109g

Rook + Equal Minors77.9%353g

R+Bishop vs R+Knight79.4%306g

Rook vs Minor (Exchange)73.7%281g

Rook vs Rook72.6%252g

Rook vs Two Minors78.1%160g

Pure Pawn60.6%109g

Weak in Rook + Minor: only 0% win rate (6 games). Force this endgameShow all 14 types

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Repertoire

PROTime controls · Years · Events

559 games in scope

8

7

6

5

4

3

2

1a

b

c

d

e

f

g

h

Explore the repertoireevery move played, ranked by frequency

280 games49%W31%D20%L

280games in this linewon 49%, drew 31%, lost 20%

Move

1. d4

1301y

54%23%23%

65%

1. e4

895y

48%33%19%

65%

1. ♞f3

475y

40%49%11

65%

1. c4

117y

45%55%

73%

1. b3

38y

33%67%

33%

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