Previously posted problems are here.
March 2019 (Mathcounts), Feb 2019 (Mathcounts), Jan 2019 (Mathcounts), Dec 2018 (Mathcounts), Nov 2018 (Mathcounts), Oct 2018 (AMC8-MC), Sept 2018 (AMC8-MC)
March 2019 (CML), Feb 2019 (CML), Jan 2019 (CML), Dec 2018 (CML), Nov 2019 (CML), Oct 2019 (CML), Sept 2018 (CML)
Feb 2018 (Mathcounts), Jan 2018 (Mathcounts) Dec 2017 (Mathcounts) Nov 2017 (AMC8) Oct 2017 (AMC 8) Sept 2017 (AMC8)
Feb 2018 (CML), Jan 2018 (CML) Dec 2017 (CML) Nov 2017 (CML) Oct 2017 (CML) Sept 2017 (CML)
Feb 2017 Jan 2017 Dec 2016 Nov 2016 Oct 2016 Sept 2016
Mar 2016 Feb 2016 Jan 2016 Dec 2015 Nov 2015 Oct 2015 Sept 2015