Blind 75 and Grind 75 were made by the same person, Yangshun Tay, a few years apart. Blind 75 is a fixed list; Grind 75 is generated from a ranked pool of 169 questions to fit your schedule. They share fewer problems than most people assume. This page compares them and says which to pick. Detailed guides: our Blind 75 guide and Grind 75 guide.
The two lists side by side
Counts were read from each list's own site data on November 9, 2026. Lists are edited from time to time, so numbers can drift. Overlap figures are our own counts, matched by LeetCode problem.
| Blind 75 | Grind 75 (default) | |
|---|---|---|
| Problems | 75 | 75 (from a pool of 169) |
| Easy / Medium / Hard | 19 / 49 / 7 | 24 / 42 / 9 |
| LeetCode Premium | 6 | 0 |
| Order | Fixed, no priority | Ranked by priority, fits your weeks and hours |
| Can grow | No | Yes, up to 169 |
How much they overlap
- 40 problems are in both lists at default settings, about 53 percent (39 if you use the original Blind 75 posting).
- 70 of the 75 Blind problems appear somewhere in Grind's full pool of 169.
- Five Blind problems are not in Grind at all: Top K Frequent Elements, House Robber II, Palindromic Substrings, Longest Common Subsequence and Sum of Two Integers.
- A community estimate puts the overlap at 60 to 65 percent; our count from the lists' own data is lower.
What changed between them
Grind 75's about page says Blind 75 is static, not personalized, and has no priority order. Grind ranks its pool by popularity, frequency, topic coverage and likes, keeps its first 75 free of Premium questions, and lets you filter by topic and difficulty. The six Premium problems in Blind 75 are Encode and Decode Strings, Graph Valid Tree, Number of Connected Components in an Undirected Graph, Alien Dictionary, and Meeting Rooms I and II.
Which one to pick
- Under four weeks: Grind 75 with your real hours, because it puts the most important problems first.
- Four to eight weeks: Grind 75 at default settings, then the five Blind-only problems.
- More than eight weeks: do both, or move on to the NeetCode 150, which contains all of Blind 75.
- No Premium subscription: Grind 75, which has none at default settings.
A combined eight-week plan
- Weeks 1 to 5: Grind 75 in the tool's order.
- Week 6: the 35 Blind 75 problems not in your Grind list, prioritizing the five that are not in Grind at all.
- Week 7: redo every problem you failed the first time.
- Week 8: mixed timed sets and mock interviews.
Next step after both: the NeetCode 150 roadmap.
Turning a list into interview skill
Any list only helps if the practice transfers to problems you have not seen. These habits make the difference:
- Time-box every attempt: about 25 minutes for a medium before you read a solution.
- Keep a log with one line per problem: the pattern, the key idea and the complexity.
- Redo failed problems after three days, a week and three weeks, without looking at your old code.
- Explain your approach out loud before and while you code, as you would to an interviewer.
- In the last two weeks, switch to unseen problems without topic labels.
The patterns most lists are built on are explained in array and string patterns and tree, graph and recursion patterns.
Where CoPilot Interview fits
Finishing a list is not the same as passing an interview: interviewers score how you explain your approach, your trade-offs and your complexity out loud. CoPilot Interview is an AI interview assistant; its free AI mock interview asks coding questions, listens to your spoken explanation and scores it out of ten with a model answer, which is the part a problem list cannot train. The free plan gives 15 minutes a day of live help in sessions of up to 15 minutes, with AI mock interviews included. Online assessments and live coding rounds usually forbid outside help, so practice now and follow your employer's rules on the day.
Disclosure: CoPilot Interview is our product, so weigh what we say about it accordingly.
Frequently asked questions
Is Grind 75 better than Blind 75?
Grind 75 is the updated version by the same author: ranked, adjustable and free of Premium questions at default settings. Blind 75 is still a solid fixed list.
How many problems do Blind 75 and Grind 75 share?
40 at default settings by our count of the lists' data in November 2026, about 53 percent.
Which Blind 75 problems are not in Grind?
Top K Frequent Elements, House Robber II, Palindromic Substrings, Longest Common Subsequence and Sum of Two Integers are not in Grind's pool of 169.
Do I need LeetCode Premium?
Not for Grind 75 at default settings. Blind 75 has six Premium problems, though free versions exist on other sites.
Practice this interview before the real one
The AI mock interview builds questions from your resume and the job description, reads them aloud and scores each spoken answer out of 10. Included on the free plan.
Start a mock interview