Hi folks! I have created a list of 31 problems in each rating from 800 to 1900 with nice reusable concepts.

Link to the sheet: https://www.tle-eliminators.com/cp-sheet

Who Am I?

How were the problems chosen?

To choose the problems for a rating:

• Went to the CProblemset and filtered on that rating.
• Started reading each problem starting from the latest problem.
• Selected a problem if it was very interesting and contained an idea, result or algorithm which is reusable in a lot of other problems of similar difficulty.
• Also got each problem reviewed by other high rated (CM and higher) folks to avoid a large personal bias in choice of ideas.

Overall:

• Each problem is fairly new making it more relevant to the style of problems common in today's contests.
• Each problem actually teaches you a nice idea. This introduces you to a lot of reusable ideas, in much lesser time compared to discovering them while solving random problems.
• Problems are grouped by rating and not topic to prevent you from solving many problems from same topic in a row.

Progress

• As Version 1, I initially selected the problems from 800 to 1200 rating a year ago, to check if people would actually like them.
• The response was overwhelmingly positive. Seeing that, I extended the set to 1600 rating.
• Post that I started getting requests to extend it to 1900 and add additional features.
• In November last year, after seeing that 70000+ users had signed up to check out the problemset on our website, I along with my team at TLE Eliminators started working on Version 2 and it is finally here.

Additional features in Version 2

• Video solutions: Solutions for every problem, uploaded week by week to guide you through the problems.
• Improved UI: A sleeker, more user-friendly interface compared to V1.
• Leaderboard: See where you stand among others and stay motivated.
• Progress-sync with Codeforces: We sync your submissions with Codeforces to automatically mark the problems as done.
• Discussion section: A place to connect with peers and exchange ideas.
• Notes section: Take notes if you like keeping a track of learnt ideas.

In case you're interested in trying out these cool problems, you can head over to: https://www.tle-eliminators.com/cp-sheet. Be sure to drop in your suggestions or feature requests in the comments. I would also love to get feedback after you've tried out some problems.

Note: This is not for Candidate Masters and above as you might have guessed from the title. If you're X rated on Codeforces, I would recommend starting with problems rated X-200 to feel a little challenged and explore ideas more relevant for your skill level.