Walter Montego: yes, I can remember now also playing as the "blindfolded" player while the other was sighted ... We never wrote down the moves, but it was certainly easy to end up mystified because you thought a piece was in a certain location but it wasn't, at that point I would usually try to reconstrut the game from the begininng, okay if only 10-15 moves deep but if you were in the endgame a hopeless situation. In the openings and midgame they sighted person would not have too much of an advantage, but if the game went on and there was not that much left it became very hard.

Swapped K/Q, now there is a challenge! LOL.