Puzzle 1: Opera Euro Rapid 2021
White: Daniil Dubov Black: Ding Liren
White to move
Answer:
1. Nh2, Nxf2; 2. Kxf2, Qh4+; 3. Kf1, Qf6+; 4. Bf3 Ding resigned here but a sample line could continue - 4. ..., cxb5; 5. Ng4, Qf5; 6. Qxf5, exf5; 7. Nxh6+, gxh6; 8. Bxb7, Ra7; 9. Bc6 and white is up a piece
alt. var. 1. Nh2, Nxh2; 2. bxc6, Ng4; 3. cxb7, Rb8; 4. Rxa5, Ngf6; 5. Qxc4 and white is up a few pawns
alt. var. 1. Nh2, bxc6; 2. Ba6, cxd7; 3. Ng4, Bxa8
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Puzzle 2: Bogdanovich Memorial Final Lichess.org 2021
White: Igor Samunenkov Black: Irina Barchuk
White to move
Answer:
1. 1. Qg5, Ng6; 2. Qxg6, Rxb3; 3. Qxg7++
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Puzzles 3: 1975
White: John Nunn Black: Yehuda Gruenfeld
White to move
Answer:
1. Ra7+, Kh6; 2.g5+, Qxg5; 3. Qh8++
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Puzzle 4: 2008
White: Joanna Majdan Black: Coimbra
White to move
Answer:
1. Rxg7+, Nxg7; 2. Nh6+, Kf8; 3. Qxf6+, Qf7; 4. Qxf7++