Why is there nothing as annoyingly effective as leechblock for chrome? Why? It's almost as if Google prefers you to get lost in the web, rather than work.
StayFocusd provides more of a gentle hint but is not an effective cage. You should compare it to leechblock's "evil" modes. Like forcing you to type a 64-character random stream of letters and digits (that can't be copied and pasted) before accessing settings or disabling the extension when in lockdown. StayFocusd is just a right click away from being disabled, it's really not even worth installing.
Jokes aside, there's always StayFocusd: https://chrome.google.com/extensions/detail/laankejkbhbdhmip...