Computer Analysis of World Chess Champions 65

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{
}

100
80 60 40 20
0
0,05 0,15 0,25 0,35 0,45 0,55 0,65 0,75 0,85 0,95 1,05 difference in best move evaluations

0,30 0,25 0,20 0,15 0,10 0,05 0,00

0
0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9

complexity
1

average error

0,10 0,15
0,00

Capablanca

0,05
0,20
0,25

0,1008
0,1058

Kramnik Karpov Kasparov Spassky Petrosian Lasker

0,1275 0,1292
0,1334 0,1343 0,1370 0,1383 0,1402 0,1403

Fischer Alekhine Smyslov
Tal

0,1492
0,1581

Botvinnik Euwe

0,1777
0,2300

Steinitz

complexity

0,35

% of blunders

0,03

0,25
0,30
0,40
0,45

0,00
Capablanca
0,01

0,0108

0,02
0,04
0,05
0,06

0,4102
0,4029
Steinitz
Tal

0,0145 0,0149
0,0158

Petrosian Karpov Kramnik Smyslov Kasparov Spassky Alekhine Lasker

0,3797
Fischer

0,3570 0,3546
Lasker Euwe

0,0185

0,3528
Alekhine

Kramnik Kasparov Botvinnik Karpov

0,0192 0,0197

0,3225
0,3193 0,3176

0,0230 0,0234
0,0264

0,3094 0,3075
0,2990
0,2946
0,2750

Fischer
Tal

Smyslov Petrosian Spassky
Capablanca

0,0265
0,0275

Botvinnik Euwe

0,0406
0,0539

Steinitz

60 50 40 30 20 10
0

expected error

0,15
0,05

Kramnik

0,10
0,20
0,25

0,1053
0,1110
0,1286
Capablanca
Karpov
0,1303
0,1361 0,1365 0,1384 0,1387 0,1390
0,1461 0,1462
Kasparov Petrosian Fischer Lasker Alekhine Spassky Smyslov
Tal
0,1577

0,1745
Botvinnik Euwe

0,2219

complexity

Steinitz

average
Capablanca
Tal

average
Capablanca Tal

% of best moves

difference between best moves

0,40
0,45
0,50
0,55
0,60
0,65

57,16
56,16

Fischer Euwe

Capablanca
Kramnik Fischer Alekhine Smyslov Kasparov Karpov
53,58
52,69
52,41
52,10
51,89
51,17

Kramnik Alekhine Kasparov Lasker Steinitz

Tal

Karpov

50,98 50,83
Lasker

Tal

Spassky Botvinnik
Euwe
50,44
50,14
49,11

Spassky Botvinnik Petrosian Smyslov
Capablanca

Petrosian Steinitz
46,09

expected % of best moves actual % of best moves

80 70 60 50 40 30 20 10

10
50-5
-10 -15 -20

0
1

move no.

Kramnik
Petrosian
Spassky
Steinitz

Kramnik
Petrosian
Spassky
Steinitz

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