This is an actual position that I saw between 2 expert players. It is White to move. Unfortunately, White missed the winning plan and ended up losing this game.
Can you find the winning plan for White? 
Chess Daily News from Susan Polgar
Practical tactics
poor Rf8: no one appreciates everything he does till he’s gone!
1. Nxd7 and then white will have an attack on the a-file.
1. Nxd7 Bxc3
(if 1. … Qxd7 2. Rxa8 wins a piece)
2. Nxf8 Rxa2
(if 2. … Bxe1 3. Rxa8 with deadly discovery threat)
3. Qxc3 Qf7
(or 3. … b4 4. Qf6, but not 3. … Kf8 4. Qh8+ Kf7 5. Qxh7+ winning the queen)
4. Ne6 looks like it wins.
1.Nxd7 Qxd7 2.Bxf6 Rxf6 3.Rxa8, losing a piece. Black will also lose a piece after 1.Nxd7 Bxc3 2.Nxf8 Bxe1 3.Rxa8. This took 2.5 minutes to solve, so there’s no way I would spot this at G/15 or G/30.
After 1. Nxd7 Qxd7 White has to play 2. Rxa8 (if 2. … Rxa8 3. Bxf6 or if 2. … Bxc3 3. Rxf8+). If 2. Bxf6?? Black has a zwichenzug (sp?) 2. … Rxa2
anon has it right:
nd7 bc3
nf8 ra2
qc3 and the night on f8 is immune
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it looks like 1.Rxa8, rxa8. 2.nxd7 bxc3 3. re7 wins
“it looks like 1.Rxa8, rxa8. 2.nxd7 bxc3 3. re7 wins”
??? Why? I see the threat of 4. Nf6+, but can’t Black just play 3. … Qd8? then the best I see for White is 4. Re6 Qxd7 5. Qxc3 but Black looks better, e.g., 5. … bxc4 or 5. … b4.