After 11. Bd3? c5! black has the edge. 12. dxc5 Nc6 13. 0-0-0 Ndxe5 14. Qg3 Qxc5 and white doesn’t have enough. 13. Nxd5 Nb6! shows that white’s is misplaced.

White needs to play 11. Qg3! in this line to meet c5? with 12. Nfxd5!

Uh, let's just say, close enough. I saw the queen on f8 and rook on h8, so knew g6 would be involved.

Let's see. I got 18.Rxh7+ Kxh7 19.Qxf6# 1-0.

However, black can last one move longer with 18...Rxh7, which I did not see or consider. However, it doesn't take much brain power to see 19.Qxg6+ Kh8 20.Qxh7# 1-0, so I'll give myself full credit.

As being pointed before white should have played 16.Bxg6+! hxg6? 17.Qxe6+ Kd8 18.Rxh8 wins the queen.

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18. Rxh7+ Rxh7

Black is about to start consolidating with 18... Nf6.

It's the age old question - do you trust the targeting computers or rely on the force? Sometimes we get a battle of Hoth moment and the stormtroopers win. Other times, it's an X-wing on intuition dropping bombs down an exhaust chute to blow up a death star.

In chessy terms, do we calculate variations for trial moves or do we wave our hands mysteriously from side to side and say "this is the variation we are looking for?

Option 1: dress yourself up in white armour over black yoga pants and pick up a blaster. Now we need to look for moves to interrogate, the rebel scum, as we examine every check and capture. And it might take us quite a while to spot 18. Rxh7+ because (a) it isn't a queen sac and (b) the rook can be captured in two different ways.

Option 2: the Jedi way. If we are mindful of the living force, young Padawan, we might spot that Qxg6# could be the move to bring balance to the position. Admittedly we can't try that straight away, but there there is only "do" or "do not". There is no try.

And that's when we spot the rook sacrifice to prepare the way for Qxg6#. Don't worry about throwing away the rook. He is doing his job so that we can do ours.

Sometimes the Empire's "examine every check and capture" gets to the answer quickly. I think in today's position that the Jedi's "this is the position you are looking for" works better.