Scouting report: Gennadi Sosonko (GM, NED)

1,475 over-the-board games in the Chess Stalker database (1,450 classical, 6 rapid, 19 blitz): 28% wins, 57% draws, 15% losses. FIDE rating 2520 standard. 101 games analyzed with Stockfish: 93% accuracy, 0.14 blunders per game.

Opening repertoire of Gennadi Sosonko 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 Gennadi Sosonko's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/1000039 — no account needed.

Gennadi Sosonko

TitleGrandmasterFederationNetherlandsBorn1943FIDE ID1000039

Classical2520

Rapid—

Blitz—

Games1,475

W · D · LWon · Drawn · Lost28 / 57 / 15

Peak2527Jan 2011

Rating history

2500

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2520no games played

Accuracy by phase

97.1%Opening93.9%Middlegame94.8%Endgame

Clutch factor

Insufficient data

Play style

Elite accuracy: 93.2% average

Plays 2.7% better with white

Low resilience (22%): Doesn't save lost positions

Very consistent (81%)

Very precise: only 0.1 blunders/game

Dominates 1.d4 as

(64% in 732 games)

Vulnerable to 1.c4

(only 43%)

Recent games

Ree, Hans(2402)

Donner Memorial Rapid · 14 Apr 2002

½–½

Langeweg, Kick(2318)

Donner Memorial Rapid · 14 Apr 2002

½–½

Ligterink, Gert(2391)

Donner Memorial Rapid · 14 Apr 2002

½–½

Kuijpers, Frans(2381)

Donner Memorial Rapid · 14 Apr 2002

1–0

Hartoch, Robert G(2318)

Donner Memorial Rapid · 14 Apr 2002

½–½

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Their real openings, level & style

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Based on

1,475 games

Based on 1,475 games

Openings

772 games as White · scores 63.7%

Weaknesses

where they slip as ♔ White

No significant weaknesses detected as white

Strengths

what holds up for them as ♔ White

Modern Benoni1.d4 ♞f6 2.c4 c5 3.d5 e614 games, last played 52 years ago64.3%wins

By family

open a family to see its lines

PROTime controls · Years · Events

1,475 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 63.7%

E00–E11170—

36%55%9

64.1%—

A40–D02133—

36%53%11

62.8%—

A46–E117925y

46%49%

70.3%+6.6 pts

E7070—

36%50%14

60.7%—

D9055—

45%44%11

67.3%+3.6 pts

A56–A6053—

42%51%7

67.0%+3.3 pts

D10–D1141—

29%66%

62.2%—

E1539—

26%67%7

59.0%−4.7 pts

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

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Endgame statistics

55 endgames (50%) · force Rook vs Two Minors (0%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

50%

55 / 110

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 vs Two Minors: only 0% win rate (9 games). Force this endgameShow all 14 types

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Repertoire

PROTime controls · Years · Events

1,475 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

772 games37%W54%D9%L

772games in this linewon 37%, drew 54%, lost 9%

Move

1. d4

73225y

37%54%9

64%

1. ♞f3

28Sept 1985

54%32%14

70%

1. e4

6Jan 1989

1783%

58%

1. c4

5Jan 1991

80%20%

40%

1. g3

1—

100%

50%

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