Quick win · Intermediate · 6 rounds · ~4 min · free with an account

Negative Instructions

"NEVER do X" is sometimes the most powerful line in the prompt. Here's when to use them — and where they backfire.

Prompt Arcade · 6 rounds · free with an account

'Don't' lines are powerful for hard limits — but models follow 'do this instead' better than 'never do that'. Pair every ban with what you want.

Five games are open to everyone — start with Prompting Mindset 101. The other 31 need a free account (no card) so your scores and progress are saved.

What you'll learn

Ban vs replace: Say what to do instead. Bans without a target are fragile.
Which bans are worth it?: Use 'don't' for hard limits with a fallback. Drop wishes.
Rewrite the bans: Turn each ban into a positive, checkable rule.
Hard-limit block: Limit → fallback → position → check.
The pink elephant: Banning a topic by name can prime it. Define the scope you want instead.
Safety net: Every real limit needs a 'do this instead'.