Based on our record, HoDoKu seems to be a lot more popular than Copper. While we know about 14 links to HoDoKu, we've tracked only 1 mention of Copper. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've seen Copper CRM work quite well for contractors (assuming that your team is using or open to using Google Workspace - if you're not using Google Workspace, I'd probably ask why not? But then recommend you to use Pipedrive if you're not willing to switch to Google Workspace). Source: over 1 year ago
Strmckr already gave you good advice on the order in which you can learn more advanced techniques. Some apps offer a practice mode in which you are given a specific grid that definitely needs that technique that you are trying to practice. One of those is my website sudoku.coach. The other one I know of is the windows software hodoku. Source: 11 months ago
On a Windows PC, Hodoku lets you input your own puzzle. You can just Copy and Paste this into the software:. Source: 11 months ago
Don't know about any sites but you can learn specific techniques in hodoku. Source: 12 months ago
If I'm solving in Hodoku it's easy enough to switch to full notation (Options | Show All Candidates | click "no"), but my usual pencil/pen/eraser on paper takes slightly more effort. Source: about 1 year ago
Download/install Hodoku (Free, as in 'beer'; will run on Mac/Windows/Linux - it's a Java .jar file (also available as a Windows executable file). Source: about 1 year ago
Zoho CRM - Omnichannel CRM for Businesses of all sizes
Yasminoku - Sudoku game and solver totally written in DHTML.
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
Simple Sudoku - Freeware Sudoku Puzzle Maker and Solver
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.
nsudoku - A Sudoku game made with ncurses.