2 Lessons- White's blunders, and Black's Tactics

This is one of the games , which I like the most.
2 Takeaways, White's blunders- inaccuracies , and Black's determination not to leave and play till the end. Watch the time, when the white resigned, 2 sec left in the clock.What a thrill victory!.Give your learning in the comment's section.
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