GM
Biyiasas, Peter
USA·Born 1950·FIDE #2000431·722 Games
USA Classical2450722 Games
Rapid—0 Games
Blitz—0 Games
Statistics
722
Total
331
Wins
216
Draws
175
Losses
46%30%24%
Play Style
What you need to know before facing them
Elite 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 analyzed
Accuracy by phase
Opening94.9%
Middlegame94.6%
Endgame94.3%
Clutch Factor
Performance under pressure
Winning (+2 or more)93%
1 Games
Equal position95%
5 Games
Losing (-2 or more)90%
6 Games
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 30average
1-15
16-25
26-35
36-45
46+
Error Heatmap
Where do most errors occur?
1
3
1
2
2
1
1
1
1
1
abcdefgh
Many
Few
Critical squares
b53 err
b42 err
e52 err
b31 err
b81 err
b5/b4 concentrate most errors. Force decisions in those zones.
Recent Games
W
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
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
King's Indian: Saemisch
61.5%13 Games·Loses
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3
Strengths
AVOIDWhite
French: Winawer
84.6%13 Games·Wins
1.e4 e6 2.d4 d5 3.Nc3 Bb4
Ruy Lopez: Exchange
63.6%11 Games·Wins
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6
Black
Sicilian: 2...Nc6
58.3%12 Games·Wins
1.e4 c5 2.Nf3 Nc6
Critical Blunders
Tactical errors analyzed with Stockfish
1 errors
▶
#88Kxc5??
Endgame
vs Larsen
OTB
Endgame Statistics
12 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO1986
1985
1984
1983
1981
1980
PRO
8
76
5
4
3
2
1a
b
c
d
efgh356 Games
52%30%18%
1.e4
71%242
1.c4
61%51
1.Nf3
55%48
1.d4
63%8
1.g3
58%6
1.b3
100%1