Tetrablock Achievements Help

[Daltron]

Noticed a range of new tetrablock achievements, but can't figure out how to get these two. I have seen quite a few people around with them. Anyone have any idea how to get them? I have tried everything

[Moffins]

Daily Challenger is for being in top 3 of daily contest, which takes your top 10 scores from that day and adds them together to create an overall score and Challenger is for being in top 3 of weekly contest, which takes your top 50 scores from the week
Theres also achievements for being first place in daily/weekly contest
If you click 'rankings' while in tetrablock and press 'continue' it'll show you all the scores/where you're ranked for each contest

[Daltron]

Daily Challenger is for being in top 3 of daily contest, which takes your top 10 scores from that day and adds them together to create an overall score and Challenger is for being in top 3 of weekly contest, which takes your top 50 scores from the week
Theres also achievements for being first place in daily/weekly contest
If you click 'rankings' while in tetrablock and press 'continue' it'll show you all the scores/where you're ranked for each contest

Thanks