Chess Workbook Authoring Tool
Create training workbooks (CWB files) that Chess Workbook can use. Build and catalogue your own "personal theory" ", as recommended by GM Lev Alburt in his book Chess Training Pocket Book.
Mandala 5
Online meditation. Mandala meditation. Be Here Now! When you notice your thoughts wandering astray, say to yourself "Be here now" and gently bring your mind at the point where you want it.
SigJenny
SigJenny turns your PC into a flexible and powerful signal generator for free. It generates numerous different waveshapes, can sweep them or arrange them as tone bursts, graphically display them, and do a very good impression of a police car!
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