Problem :
The shortcut for Chrome’s Incognito mode is Control + Shift + N. Why an “N”?
I know in Firefox, it’s Control + Shift + P and the P stands for “Private” (browsing).
Solution :
Ctrl + N is New Window.
Ctrl + Shift + N is New Incognito Window.
They’ve used the same, well known shortcut for New Window and added Shift to allow it to do something slightly different.