Here is another complex pawn endgame study composed by Ukranian chess composer Mikhail Zinar where White wins only by sacrificing the newly born Queen and making 2 Knight under-promotions!
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Mikhail Zinar, 3rd FIDE World Cup, 2013, 3rd prize
Black moves White wins
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This position in Forsyth-Edwards Notation (FEN) is: 8/7p/p2p1P1P/kp1P4/1pp2Ppp/1P1P1P2/1P3K2/8 b – – 0 1
