Solo Chess Puzzle Challenge (chess.com) 100% solved (30/30) in 14:14
Solved all 30 puzzles correctly in 14:14 (14min 14sec).
Rules:
"Score a perfect run by completing 30 puzzles without help. The puzzles get harder as you advance."
"- Capture a piece with every move until just one remains.
- No piece may capture more than 2 times per puzzle.
- If there is a King on the board, it must be the final piece."
There are 10 difficulty levels. Each difficulty level has 3 puzzles to be solved, so that's a total of 30 puzzles to be solved.
I was halfway through (50%) after the first minute, 60% after about 2 minutes, 70% after 4 minutes, and 80% after 6 and half minutes. So the last 20% took me more than half of the time, since it gets harder by the end. However i also wasted some time by being careful, overly cautious and double checking to make sure i don't blunder and get all 30 puzzles correct, that was more important to me than time. So i could probably do it a few minutes faster.