The first Bonus Round, King of Kakuro, will begin in 42 minutes. Here is a quick link to the Submission page: https://logicmastersindia.com/live/?contest=WSPC2021_B01 The specific IB has been shared in this thread and on the landing page. The puzzle booklet is available for download on the submission page. The password will be available when you start the contest, as usual.

One note: You will see an announcement on the top of the page. All this is, is a clarification that the boxes for the 4th puzzle behave a bit weirdly on our side, so we have allowed strings of 7 and 8 digits for both, but the first key will take 7 and the third key will take 8 as per the puzzle.