Overview
Kodwai is the first platform that scores how well developers collaborate with AI coding agents like Claude Code, Cursor, and Codex. It offers real coding challenges that run on your own machine, capturing your code, tests, git history, agent transcript, and time. The platform then scores you across three axes: Direction, Outcome, and Lift, each with cited evidence. It's free, and you bring your own agent.
Sudoku Printable is a web-based generator that creates unlimited free sudoku puzzles in seconds. It supports 19 variants including Standard, Diagonal, Windoku, Odd/Even, Knight, Jigsaw, and more. You can choose difficulty (Easy, Medium, Hard, Evil), grid size (4×4, 6×6, 9×9, 16×16), paper format (A4, Letter, A5, Legal, Tabloid, A3), and font size. Download a clean PDF or print directly — no registration required.
Feature Comparison
| Feature | Kodwai | Sudoku Printable |
|---|---|---|
| Purpose | Score AI agent collaboration skills | Generate printable sudoku puzzles |
| Target Audience | Developers using AI coding agents | Teachers, puzzle enthusiasts, all ages |
| Core Functionality | CLI challenges with scoring | Web-based puzzle generator |
| Variants/Options | 15+ challenges, 3 difficulties, 3 agents | 19 variants, 4 grid sizes, 4 difficulties |
| Scoring/Feedback | Three-axis score with evidence | Answer keys only |
| Platform | CLI (npx @kodwai/cli) | Web browser |
| Registration | Not required | Not required |
| Pricing | Free | Free |
Pricing
Kodwai: Fully free. No subscription or payment needed. Users bring their own AI agent (Claude Code, Cursor, Codex).
Sudoku Printable: 100% free. No registration, no payment, no limits. Unlimited puzzle generation.
Pros and Cons
Kodwai
Pros:
- Innovative scoring that measures real AI collaboration skills, not memorization.
- Works on your own machine with your own agent and editor.
- Public leaderboard and badges for motivation and portfolio building.
- Detailed evidence for each score axis helps developers improve.
Cons:
- Requires familiarity with CLI and AI coding agents.
- Limited to coding challenges; not for general puzzle or leisure use.
- Still early stage with only 15 challenges available.
Sudoku Printable
Pros:
- Extremely easy to use with no learning curve.
- Huge variety of sudoku variants and customization options.
- Perfect for classrooms, travel, and screen-free entertainment.
- Generates unlimited unique puzzles instantly.
Cons:
- Only sudoku puzzles; no other puzzle types or skill measurement.
- 16×16 grid is still in beta with potential non-unique solutions.
- No community features, leaderboards, or progress tracking.
Verdict
Kodwai is ideal for developers who want to measure and improve their AI agent collaboration skills in a competitive, evidence-based environment. Sudoku Printable is perfect for puzzle lovers, teachers, and anyone seeking unlimited, customizable sudoku puzzles for print. Choose Kodwai if you're a tech professional looking to benchmark your vibe coding; choose Sudoku Printable for classic brain training and classroom activities.
kodwai
Sudoku Printable