Upgrade older Chess King to Chess King 21 (download)


Price: $29.95

Upgrade to Chess King 21 from any version older than 2017
Prior owners of Chess King get a discount for upgrading and get on top of that 3 months of 60 Chess King Courses on web & mobile.
If you have any questions, please write to diego@chessking.com

Price: $29.95

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