Heimann, Mark

USA USA·Born 1993·FIDE #2028441·345 Games

Classical2482327 Games

Rapid24360 Games

Blitz241718 Games

Statistics

345

Total

172

Wins

Draws

Losses

50%29%21%

Play Style

What you need to know before facing them

Elite accuracy: 92.9% average

High resilience (58%): Dangerous even when losing

Solid conversion: 89%

Very consistent (85%)

Very precise: only 0.1 blunders/game

Dominates 1.e4 ♔ (77% in 82 games)

Vulnerable to 1.c4 ♔ (only 43%)

Deep Analysis

Stockfish 18 · Classical games · 55 analyzed

Accuracy by phase

Opening96.8%

Middlegame94.2%

Endgame95.5%

Clutch Factor

Performance under pressure

+3%

Winning (+2 or more)93%

31 Games

Equal position94%

16 Games

Losing (-2 or more)90%

8 Games

Problematic Pieces

Which pieces cause most errors?

♙

24%

11 errors

♕

24%

11 errors

♖

20%

9 errors

♞

13%

6 errors

♔

11%

5 errors

♗

4 errors

Critical Moment

When does the first serious error occur?

Move 41average

1-15

16-25

26-35

36-45

46+

33% of blunders occur between move 26-35. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

abcdefgh

Many

Few

Critical squares

f43 err

b52 err

b72 err

c32 err

c62 err

f4/b5 concentrate most errors. Force decisions in those zones.

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