GoGrinder 1.14 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
This free PC software is developed for Windows 7/8/10/11 environment, 32-bit version. This free program is an intellectual property of SourceForge. The program is included in Development Tools. The most popular version among the program users is 1.1. The program's installer is commonly called GoGrinder.exe.
From the developer:
GoGrinder is a Java program for practicing go problems. It uses problems in SGF format. 347 problems are included in the install, and thousands more are easily downloadable (pointers in the documentation). GoGrinder is free software released under the terms of the GNU General Public License. If you like GoGrinder, please donate a few dollars. All donations go to the EFF.
You may want to check out more software, such as Tesuji Made Easy, which might be similar to GoGrinder.