When you draw a joker, it might be tempting to use it right away, but think about whether waiting for a better opportunity might produce better results. For example, saving the jocolour rummyker for when you can use it to its fullest potential can be crucial if you are almost done with several melds but only have one card for each. Also, staying ahead of your opponents depends on knowing when to use your jokers. The use of a joker in a meld could let other players know what you're aiming for, enabling them to modify their tactics accordingly.
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