Puzzle 1:
White: Yip Black: Zatonskih
White to move
Answer:
1. b4, Bxb4 2. Rxd4, 1-0 black resigned here as the rook forks queen and bishop
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Puzzle 2:
White: Tokhirjonova Black: Foisor
Black to move
Answer:
1.Nh6+, Kg7 2. Nxg6!, fxg6 3. Qg4
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Puzzles 3:
White: Yip Black: Krush
White to move
Answer:
1. Rxc8+ Rxc8 2. Rd4
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Puzzle 4:
Endgame study
White to move
Answer:
1. Re6+ Kxe6 2. d5+ Ke7 3. d6+ Ke8 4. d7+ Ke7 5. d8=Q+ Qxd8 6. Nc6+ White is now clearly winning