Here is the list of solutions that passed the Logic Testing for TSQL Challenge 53 - Finding empty and non-empty intervals among many start-end intervals.

1		Andrew Smith	Andrew_Smith_tsqlchallenge_53_V1.sql
2		Antonio Olmedo	Antonio_Olmedo_tsqlchallenge_53_V1.sql
3		bert dehaes	bert_dehaes_tsqlchallenge_53_V1.sql
4		Daniel M	Daniel_M_tsqlchallenge_53_V1.sql
5		Daniel M	Daniel_M_tsqlchallenge_53_V2.sql
6		Daniel M	Daniel_M_tsqlchallenge_53_V3.sql
7		Daniel M	Daniel_M_tsqlchallenge_53_V4.sql
8		Daniel M	Daniel_M_tsqlchallenge_53_V5.sql
9		Duke Ganote	Duke_Ganote_tsqlchallenge_53_V4.sql
10		Leszek Gniadkowski	Leszek_Gniadkowski_tsqlchallenge_53_V1.sql
11		Maciej Chrzanowski	Maciej_Chrzanowski_tsqlchallenge_53_V4.sql
12		mark cowne	mark_cowne_tsqlchallenge_53_V1.sql
13		meierruth michael	meierruth_michael_tsqlchallenge_53_V1.sql
14		Muhammad Sali Rawther	MuhammadSali_Rawther_tsqlchallenge_53_V1.sql
15		Muhammad Sali Rawther	MuhammadSali_Rawther_tsqlchallenge_53_V2.sql
16		Slobodan Bogunovic	Slobodan_Bogunovic_tsqlchallenge_53_V1.sql
17		Stefan G	Stefan_G_tsqlchallenge_53_V1.sql
18		Stefan G	Stefan_G_tsqlchallenge_53_V2.sql
19		Vadim Orlov	Vadim_Orlov_tsqlchallenge_53_V1.sql
20		Valdas Daukša	Valdas_Daukša_tsqlchallenge_53_V1.sql
21		Zbigniew Borowski	Zbigniew_Borowski_tsqlchallenge_53_V6.sql
22		Zbigniew Borowski	Zbigniew_Borowski_tsqlchallenge_53_V7.sql

Note that the challenges are 'always ON', which means that you can submit a solution at any time. You can submit a new solution even after the results are published.