I saw many people play weak 3 check, so i give some advice to play better 3 check today
don't sac piece to get first check - many people sac knight or bishop in first 3-4 moves to get first check. this is not good because you will lose a piece and you will no have any more check. your opponent will win because he has more piece
don't sac queen even for 2 checks - lot of patzer sac their queen if they see 2 check, but this is mistake because after they lose queen, opponent has big advantage with extra queen and most of times they will give 3 check
attack with more pieces - i see lot of times people attack with only 1 piece, this is not good strategy because if you wan to get checks in succesion you need to develop all your minor pieces and attack together
try to get checks in a row - many people give 1 check and don't have any continuation, it's always good to see 3 move ahead and plan for 2 or 3 checks together
I saw many people play weak 3 check, so i give some advice to play better 3 check today
good luck, all the best
thanks