Solitaire 0-21 in Blackjack style is a symbiosis of 3 games, you can say 3 in 1. Firstly it is almost traditional blackjack, secondly it is almost solitaire and in 3 it is a game with numbers. Pump your brain up to 100% in this brain puzzle from games-dk Among the free mind games, I prefer Blackjack Solitaire 0-21 as it is one of the cool brain games. If you play this puzzle once a day, you will keep the sharpness of your mind, as well as pump your attention, concentration and raise your mathematical skills, because in essence this is a game with numbers. â­ï¸ Variety of chip layouts in each level â­ï¸ Constantly changing background â­ï¸ Buy new colorful chips with coins â­ï¸ Number games - solitaire style available offline