Puzzle XL 2020

The contest consists of 13 puzzles presented on grids having bigger size than regular daily puzzles. Every day of the contest one XL puzzle is published and it should be solved during the next five days.
Puzzle score is calculated based on the solving time for each puzzle. Puzzle scoring for particular solver is proportional to solving time and the puzzle difficulty.
Scores for individual puzzles are summarized to produce the total contest score. Contest scores are recounted periodically and can be refreshed with some delay after you finish the puzzle.
The winner of the contest will get a small prize - the puzzle book by Andrey Bogdanov.

Full results of the contest see at the results page
#Puzzle Best time
1 (2020-06-19) Minesweeper (17x17) 4m 54 s
2 (2020-06-20) Nurikabe (20x20) 8m 25 s
3 (2020-06-21) Suguru (15x15) 10m 43 s
4 (2020-06-22) Maxi Snake (17x17) 9m 28 s
5 (2020-06-23) Masyu (15x15) 1m 27 s
6 (2020-06-24) Point a Star (16x16) 7m 0 s
7 (2020-06-25) Akari (17x17) 4m 21 s
8 (2020-06-26) Minesweeper Loop (16x16) 2m 33 s
9 (2020-06-27) Tapa (17x17) 3m 12 s
10 (2020-06-28) Ripple Effect (13x13) 10m 52 s
11 (2020-06-29) Magic Snail (9x9-123) 5m 20 s
12 (2020-06-30) Every Second Turn (18x18) 3m 59 s
13 (2020-07-01) Yin Yang (17x17) 4m 34 s

Click at the puzzle name to solve the selected puzzle. Puzzles which are older than 5 days are non-competitive and can be attempted without registration.
Click at the best solving time value to see the score table for the selected puzzle.