Fernandez Guillen, Ernesto J.
CUB·Born 1994·FIDE #3512428·1,158 Games
CUBStatistics
Total
Wins
Draws
Losses
Play Style
What you need to know before facing them
Deep Analysis
Stockfish 18 · Classical games · 261 analyzed
Clutch Factor
Performance under pressure
Problematic Pieces
Which pieces cause most errors?
Critical Moment
When does the first serious error occur?
Error Heatmap
Where do most errors occur?
Recent Games
V Menorca Open A 2026 · 11 Apr 2026
V OPEN CHESS MENORCA 2026 · 9 Apr 2026
V OPEN CHESS MENORCA 2026 · 8 Apr 2026
52nd La Roda Open 2026 · 5 Apr 2026
52nd La Roda Open 2026 · 4 Apr 2026
52º Open Chess La Roda · 4 Apr 2026
Openings
Based on player games
Weaknesses
EXPLOIT!Italian: Two Knights
46.2%1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6
Sicilian: Open
57.1%1.e4 c5 2.Nf3 d6 3.d4
Ruy Lopez: Morphy
55.6%1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
Strengths
AVOIDSicilian: e6 Systems
70.9%1.e4 c5 2.Nf3 e6
French: Tarrasch
71.4%1.e4 e6 2.d4 d5 3.Nd2
Ruy Lopez: Schliemann
71.9%1.e4 e5 2.Nf3 Nc6 3.Bb5 f5
Scotch Game
67.6%1.e4 e5 2.Nf3 Nc6 3.d4
Critical Blunders
Tactical errors analyzed with Stockfish
23 endgame categories analyzed — discover where they collapse under pressure
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