Puzzle 1 – Ponomarev – Pugacev
Black to move
White: Ponomarev
Black: Pugacev
USSR 1989
A: 1. …., Nh3+; 2. gxh3, Ne2+; 3. Kh1, Qg1++
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Puzzle 2 – Witkowski – Blaschack
White to move
White: Witkowski
Black: Blaschack
Poland 1953
A: 1. Qxe5+, Nxe5; 2. Bf6+, Kh6; 3. Bg7+, Kh5; 4. Rh6++
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Puzzle 3 – Sugar – Vegh
Black to move
White: Sugar
Black: Vegh
Hungary 1979
A: 1…., Qxf4; 2. Kxf4, g5+; 3. Kg3, f4+; 4. Kh3, Nf2++
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Puzzle 4 – Engels – Cardoso
White to move
White: Engels
Black: Cardoso
Ribeirao 1949
A: 1. Qh7+, Kxh7; 2. Nf6+, Kh8; 3. Bxg7+, Kxg7; 4. Rg3, Kxf6; 5. Rg6++