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Donner, Jan Hein vs Petrosian, Tigran

IBM ┬╖ 1973 ┬╖ Result 1/2-1/2 ┬╖ Nimzo-Indian (E41)

Donner, Jan Hein 2480 ┬╖ Petrosian, Tigran 2640

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╤Е╨╛╨┤ 21... Ne5
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Donner, Jan Hein vs Petrosian, Tigran тАФ click a move to see the position.

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