POW 2021-19 is still open. Anyone who first submits a correct solution will get the full credit.

POW 2021-17 and 2021-18 are still open. For each problem, anyone who first submits a correct solution will get the full credit.

POW 2021-16 remains open, as we found gaps in the submitted solutions. Anyone who first submits a correct solution will get the full credit.

POW 2021-14 is still open and anyone who first submits a correct solution will get the full credit.

Please check that POW 2021-14 is slightly changed; there is an additional assumption that \( X \times Y \) is Hausdorff.

POW 2021-08 is still open and anyone who first submits a correct solution will get the full credit.

POW will resume on Apr. 30.

POW 2021-04 is still open and anyone who first submits a correct solution will get the full credit.

POW 2020-21 is still open and anyone who first submits a correct solution will get the full credit.

POW 2020-20 is still open and anyone who first submits a correct solution will get the full credit.