W
IM
Willow, Jonah B
ENG·Born 2002·FIDE #438804·1,767 Games
ENGFIDE OTB · #438804 · 1,767 Games
Classical24591,617 g Games
Rapid227159 g Games
Blitz236891 g Games
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1767 games analyzed
Statistics
Total
1767Wins
785Draws
519Losses
46344%29%26%
Play Style
before facing themWhat you need to know before facing themElite accuracy: 93.1% average
High resilience (57%): Dangerous even when losing
Solid conversion: 87%
Very consistent (90%)
Very precise: only 0.1 blunders/game
Dominates 1.Nc3 ♔ (89% in 14 games)
Vulnerable to 1.c4 ♚ (only 47%)
Deep Analysis
Stockfish 18 · Classical games · 741 analyzedAccuracy by phase
Opening
96.5%
Middlegame
92.8%
Endgame
95.2%
Clutch Factor
+4%Winning (+2)Winning (+2)
94%211g
EqualEqual position
94%181g
Losing (−2)Losing (−2)
90%108g
Accuracy under pressure
Problematic Pieces — which cause most errors?
23%
107 err
18%
86 err
18%
85 err
18%
86 err
13%
62 err
10%
46 err
Critical Moment
Move 37 avg0%
1-15
16%
16-25
28%
26-35
36%
36-45
20%
46+
36% of blunders after move 36-45 — keep the tension until then.of blunders occur in moves 36-45. Keep the tension until that moment.
Error Heatmap — where do errors occur?
15
16
16
18
16
FewMany
Errors mapped
142
Hotspot zone
f3 / d2
Critical squares
f3
18 err
d2
16 err
e5
16 err
f4
16 err
h6
15 err
f3/d2 account for most of the errors. Force decisions in those zones.
Openings
1,767 GamesBased on 1,767 player gamesWeaknesses
— exploit these— exploit these linesNo significant weaknesses detected as white
asblack62.5%Losses
French: Classical — 1.e4 e6 2.d4 d5 3.Nc3 Nf6
8 Games · Low sample · last played 5 months agoPlay this line
asblack53.3%Losses
Queen's Gambit Accepted — 1.d4 d5 2.c4 dxc4
15 Games · last played 3 years agoPlay this line
Strengths
— avoid these— avoid these linesaswhite71.4%Wins
French: Winawer — 1.e4 e6 2.d4 d5 3.Nc3 Bb414 Games · last played 6 months ago
14 Games · last played 6 months ago
aswhite57.7%Wins
Sicilian: Taimanov — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc626 Games · last played 2 years ago
26 Games · last played 2 years ago
asblack61.5%Wins
English: Symmetrical — 1.c4 c5 2.g3 Nc613 Games · last played 5 years ago
13 Games · last played 5 years ago
asblack60.0%Wins
Nimzo-Indian: Classical — 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc210 Games · last played 2 years ago
10 Games · last played 2 years ago
Critical Blunders
10 errors · Stockfish#56Rxf4??vs KaasenOTB · 2026
#33Qh4??vs SardanaOTB · 2026
#58Rxh5+??vs MatyassyOTB · 2025
#65Kh3??vs AizenbergRapid · 2025
#40f5??vs GhasiRapid · 2025
#85Qd7??vs AizenbergOTB · 2025
#46Be3??vs DupuisOTB · 2025
#38Rf1??vs PidluznijOTB · 2025
#63Kg1??vs FavaOTB · 2025
#32Qf6??vs GohOTB · 2025
Recent Games
1,767 GamesDraw
Fava, Lorenzo(2343)
Wood Green Inv 2026 · 20 Jul 2026
Draw
Kovchan, Alexander(2445)
Wood Green Inv 2026 · 20 Jul 2026
Draw
Adams, Michael(2622)
Wood Green Inv 2026 · 19 Jul 2026
Win
Royal, Shreyas(2502)
Wood Green Inv 2026 · 19 Jul 2026
Draw
Badacsonyi, Stanley(2312)
Wood Green Inv 2026 · 18 Jul 2026
Win
Vijayakumar, Rishi(2307)
Wood Green Inv 2026 · 17 Jul 2026
Endgame Statistics
PRO431 endgames (52.8%)Unlock Endgame Statistics
23 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
883 Games
48%30%22%
MoveGamesPerformance%
1.e4
76762%
1.c4
5568%
1.Nf3
4166%
1.Nc3Strong
1489%
1.d4Weak
40%
1.e3Weak
10%
1.b3Weak
10%