Puzzle 1: 1959
White: Larry Evans Black: Arthur Bisguier
White to move
Answer:
1. Qa3+ Qe7 (Kg8 2. Bxh7+) 2. Bc6!
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Puzzle 2: 2007
White: Aleksandr Lenderman Black: Boris Gulko
Black to move
Answer:
1...., e3! 2. Rxf6, Kxf6 (e2! is better, they both had time trouble and was missed) 3. Nc3, e2 4.Re1, Rd1 and Lenderman resigned.
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Puzzles 3: 2007
White: Michal Vladimirovich Krasenkow Black: Hikaru Nakamura
Black to move
Answer:
1..., Qxf2+ 2. Kxf2, Bc5+ 3. Kf3, Rf6+ 4. Kg5, Ne5+ 5. Kg5, Rg6+ 6. Kh5, f6 7. Rxe5, Rxe5+ 8. Kh4, Bc8 Krasenkow resigns because Rh6+ is coming
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Puzzle 4: 2014
White:Fabiano Caruana Black: Ruslan Ponomariov
White to move
Answer:
1. gxf7 Bxf7 (Rxf7 2. Qxe6) 2. Re7 Qxe7 (Black can play silly moves to prolong the game but there is nothing that defends properly) 3. Ba6 Kxa6 4. Qa8#