power grid is fun and moderately challenging.–https://www.amazon.com/dp/B0007YDBLE/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=39Y7BFH0LJ7B3&coliid=I1LD3WCHZN4HET
ticket to ride is also an interesting game–https://www.amazon.com/dp/0975277324/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&colid=39Y7BFH0LJ7B3&coliid=I2KA719TRE4NG4
if you’re interested in 4-handed card games, pinochle and hearts are challenging and fun. when i was 14 and my sister 10, dad taught us and mom how to play pinochle and we played once a week for about a year.
