I didn't know about gridcoin. Thanks for that.

However when i play chess the moment i smell that my opponent is female i immediately start playing more aggressively, and my opponent starts backs down. The statistics of the top chess players do prove me right. I have tried it myself many times. Against female players i don't try to play the objectively best move like usual, i consciously try to make the female player be afraid of their position and they lose by themselves.