Introduction

Welcome to the next installment in our daily contest series, Kakuro Kart. This journey will take participants through a set of Kakuro puzzles. Kakuro certainly does not need introduction to most puzzle solvers, but if you are either new to Kakuro or to Penpa, check out the about page for rules, visual explanations and history.

The contest kicks off on 20th Jun 2022 at 8:00 AM IST with the first official puzzle and then a new puzzle releasing every 30 hours. The final official puzzle will be released on 9th July 2022 at 2:00 AM IST. There will be 21 puzzles, with the first five being trial puzzles, after which the actual contest will begin, containing 16 puzzles. The order of puzzles is not necessarily according to difficulty. Please read the following rules carefully.

1. Participants must solve within the 30-hour window of the puzzle to be considered for the official ranking of that day (i.e., the submission must be before the 30-hour window ends).
2. Participants can still solve the puzzle outside the official window but won't be awarded any points for that day.
3. The contest page will show which puzzle is active at any given moment.
4. Click on the "Start" button to start the puzzle. A new window will open. The puzzle page does not contain rules.
5. Once the solver thinks they have reached a solution, they must click the "Submit Solution" button at the bottom of the grid.
6. Instant grading is enabled. If the solution is correct, a pop-up will appear saying so, and the player can rate the puzzle and provide any feedback, which will appear on the discussions page. Next, there will be a link to go back to the contest page.
7. Penalty – Penalty system is same as used in previous series. With one wrong submission, a player's final time will be 110% of their actual solve time to reach the correct solution. With each further wrong submission, 20% will be added (e.g., with 3 wrong submissions, the final time will be 150% of the solve time, etc.
8. Scoring – Points are give to top 200 players for each puzzle. Details are explained in scoring page.