I made a site called CF Random Unsolved. It gives you a random Codeforces problem you have not solved yet. You can set the difficulty, pick tags, and you do not need any login. Just type your handle and get a random problem.

Why I felt the need to create this

• Picking a problem from problemset took too long and broke my flow
• I wanted new problems every time without repeats without scrolling the problemset
• Filtering by rating or tags felt slow and tedious
• I needed something that works instantly without login even on my phone

Why it helps

• No more searching for the next problem
• Every problem shown is new for you
• Easy to focus on a rating range or topic
• No login needed
• Fast to use and good for daily practice

Updates - Added hide rating/problem tags feature