Heissler, Jakob
GER·Born 1964·FIDE #4614720
GER2453Classical
—Rapid
—Blitz
Statistics
Total241
Wins84
Draws101
Losses56
35%42%23%
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 
(62% in 104 games)
(62% in 104 games)Vulnerable to 1.d4 
(only 48%)
(only 48%)Play against Heissler's Twin
Uses their openings, level & style
Practice against a bot that uses their real openings and playing style
Ready to play
241 games analyzed
Deep Analysis
Stockfish 18 · Classical · 1 analyzedStockfish 18 · 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
Problematic Pieces — which cause most errors?
0%
0 err
0%
0 err
0%
0 err
0%
0 err
0%
0 err
0%
0 err
Critical Moment
Move 30 avg0%1-15
0%16-25
0%26-35
0%36-45
0%46+
Error Heatmap — where do errors occur?
Insufficient data
Openings
241 gamesBased on 241 player gamesWeaknesses
— exploit these— exploit these linesNo significant weaknesses detected as white
No significant weaknesses detected as black
Strengths
— avoid these— avoid these linesaswhite71.4%wins
French Defense — 1.e4 e6 2.d3 d514 g14 games · last played 20 years ago
asblack50.0%wins
Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d610 g10 games · last played 23 years ago
Critical Blunders
Tactical errors analyzed with StockfishNo blunders recorded
Recent Games
241 gamesDraw
Wiegmann, Sascha(2184)
? · 15 Oct 2006
Win
Berger, Steve(2427)
? · 2 Apr 2006
Win
Petrosian, Suren(2395)
? · 12 Mar 2006
Draw
Chevelevitch, Evgueni, Dr.(2423)
? · 19 Feb 2006
Draw
Skytte, Rasmus(2396)
? · 29 Jan 2006
Draw
Mossakowski, Florian(2333)
? · 11 Dec 2005
Repertoire
PRO
8
76
5
4
3
2
1a
b
c
defghMove arrowsmost-played moves
SF18
122 games
39%42%19%
MovegamesPerf%
1.e4
10462%
1.c4
961%
1.Nf3
658%
1.d4Weak
317%