Chess/Puzzles/Endgame/Puzzle 2/Solution
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This page may need to be 1.Nd4+ Ke1
2.Qh2! Kd1!
3.Qh7! Ke1!
4.Qh4+
4.Qe4? leads to 4... Kf2 5.Qf3+ Kg1 6.Ne2+ Kh2 7.Qxf1 (stalemate!!)
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The problem now branches into two main possibilities
a)4...Kd1
5.Qe4! Qe1+
6.Kb3 Qf2
6...Qd2 leads to 7.Qh1+ Qe1 8.Qh5+ e2 9.Nf3
7.Qb1+ Kd2
8.Qc2+ Ke1
9.Qc1#
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b)4...Qf2
5.Nc2+ Ke2
6.Qh5+ Kf1
7.Qh1+ Qg1
8.Qf3+ Qf2
9.Nxe3+ Kg1
10.Qd1+ Kg2
11.Ng4+, and white has a queen and king v. king situation.
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