Black threatens mate on a1, which must be defended!
1.Nf3
The only other move to "apparently"
protect a1 is 1.Qb1 which fails to 1...Qf2+ 2.Ka3 Qc5+ 3.Ka2 Qxc6-+
1...Qxh1 2.Ne5
The only move! Look at all the stuff it does:
-
threatens mate on d7;
-
discovers an attack by the bishop against the queen on
h1;
-
protects the c6-bishop with the knight; and
-
interferes with the h8-bishop's view of a1, breaking
up the coordination with the black queen.
That's a lot of traction for one move!
2...Qh3
Considering he's going to lose his queen
anyway, Black might want to look at 2...Qa1+ 3.Kxa1 Nf7 (3...Bxe5+
4.Kb1 Nf7 allows the double-attack with 5.Qf5) 4.Qc4 Once again
threatening mate, this time on b4. 4...Bxe5+ 5.Ka2 Nd6 but
he (Black) is still pretty much toast.
3.Qc4
Or, if White wants to win the queen right away, 3.Nd7+ Qxd7 4.Bxd7
3...Qh2+
All other moves lead directly to mate.
See if you can find them all!
4.Ka3 Qxe5
Once again, all other moves lead directly to mate.
5.Qb4+ Qb5 6.Bxb5 axb5 7.Qxb5+ Ka8 8.Qxg5
White seems to have an advantage, though converting it might be a
challenge. Still, it beats getting checkmated!
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