(1) 4.Qxf7#
The queen is protected by the bishop on c4. Two attackers, only one
defender. |
(2) 5.Bxf7#
Once again, there are two attackers and only one defender. And Black's
king has no place to go. |
(3) 7...Qe4#
This time, the queen didn't need help. |
(4) 1.Qxh7#
Queen and bishop often work together well. |
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