Jakob Heissler
Germanyborn 1964FIDE ID 4614720
Rating & statistics
FIDE rating lists · Sep 2023 – Sep 20262420
2460
2453 · Sep 2023
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2024
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2025
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2026
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Sep 2023Oct 2026
2453Classical
2456peak, Jul 2006
237games
82wins, 35%
99draws, 42%
56losses, 24%
Play style
before facing themWhat you need to know before facing themPlays 95.3% better with white
Very precise: only 0.0 blunders/game
Dominates 1.e4 as
(61% in 103 games)
Vulnerable to 1.d4
(only 48%)
Play against Heissler's Twin
Their real openings, level & style
Practice against a bot that uses their real openings and playing style
Based on 237 games
Openings
237 gamesBased on 237 player gamesWeaknesses
where they slip as ♔ WhiteNo significant weaknesses detected as white
Strengths
what holds up for them as ♔ WhiteFrench Defense1.e4 e6 2.d3 d514 games, last played 20 years ago71.4%wins
Deep analysis
Stockfish · Classical · 1 analyzedStockfish · Classical games · 1 analyzedAccuracy by phase
Opening
96.8%
Middlegame
94.4%
Endgame
99.8%
Clutch factor
0%Winning (+2)Winning (+2)
85%0g
EqualEqual position
95%1g
Losing (−2)Losing (−2)
85%0g
Accuracy under pressure barely drops when losing.
Problematic pieces
0%
0 err
0%
0 err
0%
0 err
0%
0 err
0%
0 err
0%
0 err
Critical moment
Move 30 avg0%
0%
0%
0%
0%
Error heatmap · Critical squaresError heatmap
Insufficient data
Critical blunders
Tactical errors analyzed with StockfishNo blunders recorded
Recent games
237 gamesWiegmann, Sascha(2184)
GER · 15 Oct 2006
Berger, Steve(2427)
GER · 2 Apr 2006
Petrosian, Suren(2395)
GER · 12 Mar 2006
Chevelevitch, Evgueni, Dr.(2423)
GER · 19 Feb 2006
Skytte, Rasmus(2396)
GER · 29 Jan 2006
Mossakowski, Florian(2333)
GER · 11 Dec 2005
Repertoire
PROTime controls · Years · Events
237 games in scope
6
5
4
3
Explore the repertoireevery move played, ranked by frequency
121 games39%W42%D19%L
121games in this linewon 39%, drew 42%, lost 19%
Move
1. e4
10320y41%41%18%
61%1. c4
923y33%56%11
61%1. ♞f3
621y33%50%17
58%1. d4
3Apr 1999033%67%
17%