Henneberger vs Nimzo Drill

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bbeltkyle89

Anyone know how to win the Henneberger vs Nimzo endgame drill in the "Master Games" section? i play all these "excellent" moves, but im just repeating the position...

bbeltkyle89
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bbeltkyle89
bbeltkyle89

Ahh, nvm, i got it....

bbeltkyle89

it took me a bit of time to realize i had to get Nb1, and then use the a3-a2 tempo to force zugzwang