Queen's Gambit Declined: Chigorin Defense, Exchange Variation, Costa's Line
White
Rating Group
Elo gain/loss
Game count
All
0.09
149
<1000
10.67
3
1000-1500
1.42
11
1500-2000
0.15
27
2000+
-0.35
108
Black
Rating Group
Elo gain/loss
Count
All
-0.09
149
<1000
0
1
1000-1500
1.7
10
1500-2000
0.08
30
2000+
-0.31
108