These puzzles all come from the September Lichess Blitz Titled Arena: https://lichess.org/tournament/sep21bta They are organized from easiest to hardest. Please give the heart button a click if you enjoy them and let us know what you think in chat.
Special thanks to https://lichess.org/@/TCF_Namelecc and https://lichess.org/@/Yeltcki for helping to prepare this study. Check out the staff picks page for more good studies on various topics: https://lichess.org/page/studies-staff-picks