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Blunderproof
← Petrov's Defence (C42-C43)
Hold the knight, then take the kingside
vs 5.d4, the old main line
Learn
Recall
Tempo
Off book
Coach
0:10
Move 0 of 13 · you play Black
Beat the clock: 10 seconds per move.
White
sealed
sealed
h
g
f
e
d
c
b
a
1
2
3
4
5
6
7
8
Black