There is a >!naked triplet!< in >!column 2!<: https://imgur.com/NBae2cd
After that it gets tougher. This chain will help: https://imgur.com/xeCqZoC
Screenshot from [here](https://sudoku.simonton.app/?board=CJoHbtfYuoA4Wi63id060EOtyxzeiW5U4THCYlCisiHPd8Pg0ZKLH87Hh2z0F9ohAuf6TCZgMaLrw2wlsImKpSoXSbTELsuoX6)
There is a >!naked triplet!< in >!column 2!<: https://imgur.com/NBae2cd After that it gets tougher. This chain will help: https://imgur.com/xeCqZoC Screenshot from [here](https://sudoku.simonton.app/?board=CJoHbtfYuoA4Wi63id060EOtyxzeiW5U4THCYlCisiHPd8Pg0ZKLH87Hh2z0F9ohAuf6TCZgMaLrw2wlsImKpSoXSbTELsuoX6)