Quickly combine pieces and outsmart your opponent in thrilling matches! Do you love challenging and engaging games? Then start playing Problems Collector, an online game inspired by the classic Mahjong Solitaire! Match tiles and uncover patterns in this puzzle adventure that will keep your attention for hours! COMPETE WITH FRIENDS - Participate in 1v1 online matches against players from around the world and climb the global rankings. - Compare your scores with friends and rivals. How to play Combine Pieces: Combine the pieces until you complete the columns. Complete the Board: Complete all columns to win the match. Have fun matching pieces and solving complex puzzles with Problems Collector. Join the global community and show that you are the master collector!