B
GM
Biyiasas, Peter
USA·Born 1950·FIDE #2000431·722 Games
USA Classical2450722 Games
Rapid—0 Games
Blitz—0 Games
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722 games analyzed
Statistics
Total
722Wins
331Draws
216Losses
17546%30%24%
Play Style
What you need to know before facing themElite accuracy: 92.4% average
Very consistent (92%)
Very precise: only 0.0 blunders/game
Dominates 1.e4 ♔ (70% in 242 games)
Vulnerable to 1.g3 ♚ (only 38%)
Deep Analysis
Stockfish 18 · Classical games · 12 analyzedAccuracy by phase
Opening
94.9%
Middlegame
94.6%
Endgame
94.3%
Clutch Factor
+3%Winning (+2 or more)
93%1g
Equal position
95%5g
Losing (-2 or more)
90%6g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
29%
4 errors
21%
3 errors
21%
3 errors
14%
2 errors
7%
1 errors
7%
1 errors
Critical Moment — When does the first serious error occur?
Move 30 average0%
0%
0%
0%
0%
1-15
16-25
26-35
36-45
46+
Error Heatmap — Where do most errors occur?
3
FewMany
Errors mapped
14
Hotspot zone
b5 / b4
Critical squares
b5
3 err
b4
2 err
e5
2 err
b3
1 err
b8
1 err
b5/b4 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesWeaknesses
— exploit these linesNo significant weaknesses detected as White
Black61.5%Loses
King's Indian: Saemisch — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3
13 Games · last played 46 years agoPlay this line
Strengths
— avoid these linesWhite84.6%Wins
French: Winawer — 1.e4 e6 2.d4 d5 3.Nc3 Bb413 Games · last played 43 years ago
White63.6%Wins
Ruy Lopez: Exchange — 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc611 Games · last played 49 years ago
Black58.3%Wins
Sicilian: 2...Nc6 — 1.e4 c5 2.Nf3 Nc612 Games · last played 46 years ago
Critical Blunders
1 errors · Stockfish#88Kxc5??vs LarsenOTB
Recent Games
722 GamesW
Penoyer, F.
? · 1 Jan 1986
W
Akamine, Nathan
? · 1 Jan 1986
D
Lawless, K.
? · 1 Jan 1985
D
Gonzalez, Roberto Sanchez
? · 1 Jan 1985
L
Enright, P.
? · 1 Jan 1984
D
Lawless, K.
? · 1 Jan 1984
Endgame Statistics
PRO12 endgame categories analyzedEndgame Statistics
Reveal weaknesses →
12 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
356 Games
52%30%18%
MoveGamesPerformance%
1.e4Strong
24271%
1.c4
5161%
1.Nf3
4855%
1.d4
863%
1.g3
658%
1.b3Strong
1100%