S
GM

Smejkal, Jan

CZE CZE·Born 1946·FIDE #300020·2,010 Games

Classical25042,006 Games
Rapid4 Games
Blitz0 Games

Play against Smejkal, Jan's Twin

PRO

Uses their openings, level & style

Statistics

Total

2010

Wins

784

Draws

904

Losses

322
39%45%16%

Play Style

What you need to know before facing them
Elite accuracy: 93.4% average
Very consistent (89%)
Very precise: only 0.1 blunders/game
Dominates 1.d4 ♔ (70% in 111 games)

Deep Analysis

Stockfish 18 · Classical games · 95 analyzed
Accuracy by phase
Opening
96.9%
Middlegame
94.7%
Endgame
94.9%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+2%
Winning (+2 or more)
93%10g
Equal position
94%65g
Losing (-2 or more)
91%20g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
26%
33 errors
24%
31 errors
20%
26 errors
11%
14 errors
10%
13 errors
9%
11 errors
Critical Moment — When does the first serious error occur?
Move 41 average
0%
29%
14%
29%
29%
1-15
16-25
26-35
36-45
46+
29% of blunders occur between move 16-25. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
6
5
6
5
5
5
Few
Many
Critical squares
d7
6 err
e5
6 err
b5
5 err
e4
5 err
h3
5 err
d7/e5 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

No significant weaknesses detected as White

No significant weaknesses detected as Black

Strengths

— avoid these lines
White63.6%Wins
King's Indian — 1.d4 Nf6 2.c4 g622 Games · last played 27 years ago
White63.6%Wins
Reti: KIA — 1.Nf3 d5 2.g3 Nf611 Games · last played 27 years ago
Black60.0%Wins
Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e630 Games · last played 41 years ago

Critical Blunders

8 errors · Stockfish
Nh3??vs SmyslovOTB · 1977
d6??vs BronsteinOTB
Rc1??vs SmyslovOTB
Nf4??vs KeresOTB
f4h3??vs KarpovOTB
e8d7??vs PetrosianOTB
a5??vs KeresOTB
a2a5??vs TalOTB

Recent Games

L
Kastner, Vojtech(1996)

? · 15 Dec 2006

1-0
D
Meduna, Eduard(2495)

Extraliga CZE · 18 Mar 2000

½-½
W
Unzicker, Wolfgang(2436)

Bundesliga 9900 · 20 Feb 2000

0-1
D
Bischoff, Klaus(2509)

Bundesliga 9900 · 6 Nov 1999

½-½
L
Sjodahl, Pontus(2419)

? · 10 Oct 1999

1-0
L
Kasimdzhanov, Rustam(2603)

Bundesliga 9900 · 9 Oct 1999

0-1

Endgame Statistics

PRO19 endgame categories analyzed
Endgame Statistics
Reveal weaknesses →
Repertoire
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Move arrowsmost-played moves
Stockfish
1017 Games
46%40%14%
MoveGamesPerformance%
1.c4
484
66%
1.Nf3
294
66%
1.e4
120
65%
1.d4
111
70%
1.g3Strong
7
93%
1.g4Strong
1
100%

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