3) Taking back capture moves / putting back captured pieces (TAKEBACK/TB/ST+RV):
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   a) Elite Avantgarde (2100), Elite A/S, Prestige and Elegance: select the
      captured piece from the border pieces and put it back on the board.
   b) Playmatic S: select the captured piece by directly clicking at the
      [piece symbol] to the left of the [piece button] (NOT the button itself!),
      and put it back on the board - the correct color is set automatically!
   c) Excellence-B, Designer 2000/2100 (Display), Designer Mach III/IV Master,
      and Chesster: select the captured piece with [VERIFY] and [piece button]
      (just ignore Chesster's remarks!), and put it back on the board -
      the correct color is set automatically!
   d) all others: (they don't display the captured piece, the CSC doesn't even
      display the takeback move!) Select the captured piece in 'Verify Mode',
      i.e. with [VERIFY/PV] and/or [piece button], and put it back on the board -
      the correct color is set automatically! You may have to click on [CLEAR/CL]
      to terminate this procedure (or just continue to take back the next move).
   For taking back a pawn promotion move you have to use the same procedure
   already when you take back the promotion move, i.e. for restoring the pawn!