R-Schach is the successor of Freeware-Schach and has an unpacked size of 52 MB.
Run R-Schach at your own risk.
The last version 1 (still executable under Windows XP)
R-Schach is also running on your Android smartphone / tablet. To install it there, simply open the page "Freeware-Schach.de". There you will find a download link. You will not find it in the Play Store!
Freeware-Schach has an unpacked size of only 3,3 MByte on your harddisk and runs from Windows 2000. This application is not developed further. Freeware-Schach is not stable for some users under Windows 10. For me, however, it works perfectly. So better install R-Schach.
Run Freeware-Schach at your own risk.