IM
Semkov, Semko
BUL·Born 1960·FIDE #2900068·492 Games
BUL Classical2450492 Games
Rapid—0 Games
Blitz—0 Games
Statistics
492
Total
204
Wins
147
Draws
141
Losses
41%30%29%
Play Style
What you need to know before facing them
Very high accuracy: 88.1% average
Plays 10.3% better with white
Very precise: only 0.2 blunders/game
Dominates 1.d4 ♔ (63% in 241 games)
Vulnerable to 1.Nf3 ♚ (only 33%)
Deep Analysis
Stockfish 18 · Classical games · 6 analyzed
Accuracy by phase
Opening96.2%
Middlegame91.7%
Endgame90.8%
Clutch Factor
Performance under pressure
Winning (+2 or more)96%
2 Games
Equal position97%
1 Games
Losing (-2 or more)83%
3 Games
Problematic Pieces
Which pieces cause most errors?
♙
28%
5 errors
♕
28%
5 errors
♖
17%
3 errors
♗
11%
2 errors
♞
11%
2 errors
♔
6%
1 errors
Critical Moment
When does the first serious error occur?
Move 36average
1-15
16-25
26-35
36-45
46+
50% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap
Where do most errors occur?
1
1
2
1
1
1
1
1
1
1
abcdefgh
Many
Few
Critical squares
c62 err
c31 err
c71 err
d51 err
e11 err
c6/c3 concentrate most errors. Force decisions in those zones.
Recent Games
W
Stavrev, Nikolaj2313
? · 14 Dec 2003
W
Asparuhov, Parvan2136
? · 14 Dec 2003
L
Stoinev, Metodi2331
? · 13 Dec 2003
W
Kukov, Andrej2048
? · 13 Dec 2003
D
Kirov, Dimitar1935
? · 13 Dec 2003
D
Tsvetkov, Ilia2307
? · 12 Dec 2003
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
Sicilian: 2...Nc6
52.9%17 Games·Loses
1.e4 c5 2.Nf3 Nc6
Strengths
AVOIDWhite
Nimzo-Indian: Huebner
61.1%18 Games·Wins
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5
Black
No consistent strengths detected as Black
Critical Blunders
Tactical errors analyzed with Stockfish
2 errors
▶
#32g5h6??
Endgamevs Tal
OTB
▶
#41b4??
Endgamevs Topalov
OTB
Endgame Statistics
5 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2003
1993
1992
1991
1990
1989
PRO
8
76
5
4
3
2
1a
b
c
d
efgh256 Games
47%30%23%
1.d4
63%241
1.e4
36%11
1.Nf3
50%4