P
GM
Parker, Jonathan F
ENG·Born 1976·FIDE #400580·578 Games
ENG Classical2498554 Games
Rapid246817 Games
Blitz25007 Games
Play against Parker, Jonathan F's Twin
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578 games analyzed
Statistics
Total
578Wins
205Draws
271Losses
10235%47%18%
Play Style
What you need to know before facing themVery high accuracy: 87.6% average
Plays 13.7% better with black
Inconsistent (50%): Can have off days
Very precise: only 0.3 blunders/game
Dominates 1.e4 ♔ (68% in 11 games)
Deep Analysis
Stockfish 18 · Classical games · 8 analyzedAccuracy by phase
Opening
96.6%
Middlegame
89.8%
Endgame
94.2%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+31%Winning (+2 or more)
97%1g
Equal position
94%5g
Losing (-2 or more)
66%2g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
25%
2 errors
25%
2 errors
25%
2 errors
12%
1 errors
12%
1 errors
0%
0 errors
Critical Moment — When does the first serious error occur?
Move 41 average0%
0%
0%
100%
0%
1-15
16-25
26-35
36-45
46+
100% of blunders occur between move 36-45. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
1
1
1
1
1
1
1
1
FewMany
Errors mapped
8
Hotspot zone
b2 / c2
Critical squares
b2
1 err
c2
1 err
c3
1 err
c7
1 err
d4
1 err
b2/c2 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesNo clear weaknesses!
Critical Blunders
6 errors · Stockfish#38Kb7??vs EfroimskiBlitz · 2024
#30Nxg8??vs HongBlitz · 2024
#24Nf3??vs AdamsBlitz · 2024
#24f5??vs GhasiBlitz · 2024
#19Bxb3??vs Vachier-LagraveBlitz · 2024
#43Rd4??vs TopalovOTB
Recent Games
578 GamesD
Kovchan, Alexander(2445)
4NCL 2025-26 · 4 May 2026
D
Ansell, Simon T(2303)
Round 8: Ansell, Simon T ... · 22 Mar 2026
L
Jackson, James P(2373)
Round 7: Parker, Jonathan... · 21 Mar 2026
L
Maroroa Jones, Gawain C B(2645)
Round 6: Maroroa Jones, G... · 8 Feb 2026
D
O`Gorman, Tom(2391)
Round 5: Parker, Jonathan... · 7 Feb 2026
W
Siva Mahadevan(2431)
Round 4: Siva Mahadevan -... · 11 Jan 2026
Endgame Statistics
PRO9 endgame categories analyzedEndgame Statistics
Reveal weaknesses →
9 endgame categories analyzed — discover where they collapse under pressure
Repertoire
8
76
5
4
3
2
1a
b
c
d
efghMove arrowsmost-played moves
Stockfish
297 Games
42%41%17%
MoveGamesPerformance%
1.d4
26262%
1.Nf3
1468%
1.e4
1168%
1.f4
463%
1.c4
438%
1.g3Strong
2100%