National Geographic Chess Documentary “My Brilliant Brain” - Featuring GM Susan Polgar

This is a difficult endgame. It requires extensive calculation. Can you find right plan?

Endgame is a very important phase of the game. This is a must know King and Pawn endgame structure.

White to move. How should white proceed? You have 30 second to solve this puzzle :)

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This was an actual game between Hennigen - Berzinsh (London 2009)

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This is a tricky problem that requires a fairly deep analysis to prove out. Does white win or draw this position?