Pruijssers, Roeland

NED NED·Born 1989·FIDE #1013068·1,638 Games

Classical25171,611 Games

Rapid—7 Games

Blitz253920 Games

Play against Pruijssers, Roeland's Twin

PRO

Uses their openings, level & style

Practice against a bot that uses their real openings and playing style

Ready to play

1638 games analyzed

Statistics

Total

1638

Wins

762

Draws

483

Losses

393

47%29%24%

Play Style

What you need to know before facing them

Elite accuracy: 93.7% average

Solid conversion: 88%

Very consistent (91%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 ♔ (66% in 767 games)

Vulnerable to 1.c4 ♔ (only 43%)

Deep Analysis

Stockfish 18 · Classical games · 181 analyzed

Accuracy by phase

Opening

96.5%

Middlegame

93.6%

Endgame

95.4%

Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?

+5%

Winning (+2 or more)

95%71g

Equal position

95%72g

Losing (-2 or more)

90%38g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

26%

38 errors

24%

35 errors

16%

23 errors

12%

17 errors

12%

17 errors

12%

17 errors

Critical Moment — When does the first serious error occur?

Move 35 average

50%

17%

1-15

16-25

26-35

36-45

46+

50% of blunders occur between move 16-25. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

c3 / e4

Critical squares

7 err

6 err

5 err

c3/e4 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

White44.4%Loses

French: Classical — 1.e4 e6 2.d4 d5 3.Nc3 Nf6

18 Games · last played 3 years agoPlay this line

No significant weaknesses detected as Black

Strengths

— avoid these lines

White60.5%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e676 Games · last played 2 years ago

White60.0%Wins

French: Winawer — 1.e4 e6 2.d4 d5 3.Nc3 Bb425 Games · last played 12 years ago

Black76.5%Wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e617 Games · last played 2 years ago

Black61.5%Wins

Scotch: Mieses — 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc613 Games · last played 4 years ago

Critical Blunders

10 errors · Stockfish

#54h3??Endgamevs SoderstromOTB · 2024

#85Kc2??Endgamevs ZelbelOTB · 2023

#25Qc8??Tacticsvs BraunOTB · 2023

#51g6??Endgamevs PavlidisOTB · 2023

#76Nc6??Endgamevs LibiszewskiOTB · 2023

#15Qb6??Tacticsvs RietzeOTB · 2022

#50Rxg5??Endgamevs PijpersOTB · 2022

#33Re7??Tacticsvs AdmiraalOTB · 2022

#60Kg3??Endgamevs ZwirsOTB · 2021

#24Rc5??Tacticsvs BeerdsenOnline · 2020

Recent Games

1,638 Games

Sriniaiyer, Sudarshan(2128)

Titled Tue 4th Jun Early · 4 Jun 2024

½-½

Tymrakiewicz, Rafal(2129)

Titled Tue 4th Jun Early · 4 Jun 2024

1-0

Belli, Giorgio(2138)

Titled Tue 4th Jun Early · 4 Jun 2024

½-½

Prokofiev, Valentyn(2337)

Titled Tue 4th Jun Early · 4 Jun 2024

0-1

Krudde, Fitzgerald(2249)

Dutch League 2023-24 · 20 Apr 2024

½-½

Van der Hagen, Loek(2341)

Dutch League 2023-24 · 23 Mar 2024

1-0

Endgame Statistics

PRO23 endgame categories analyzed

Endgame Statistics

Reveal weaknesses →

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

828 Games

51%29%20%

Move	Games	%
1.e4	767	66%
1.c4	22	43%
1.d4	18	64%
1.f4	8	63%
1.Nf3	6	58%
1.b3 Strong	4	75%
1.g3 Strong	3	100%

MoveGamesPerformance%

1.e4

767

66%

1.c4

43%

1.d4

64%

1.f4

63%

1.Nf3

58%

1.b3Strong

75%

1.g3Strong

100%