A bug has been found in Scan recently that could lead to such scores. An update hasn't been applied yet on lidraughts, but possibly it will fix this evalution. For me Scan changes to -6 anyway around …

For puzzle 1129 the moves 40-34 and 22-28 can be reversed, but this isnt accepted.

https://lidraughts.org/training/2543 Solution stops at: 5.20-15 However black can continue as follows:17-22, 14-20,13-18, 8x39 +1 for black and at least a draw

Areny startują codziennie o godzinie 17:05 i 22:05 Czas: 3+2 Długość: 60 min Możecie dołączyć w każdym momencie trwania areny :)

Puzzle 935: both 27-22 and 38-33 also seem to be winning.

Puzzle 1150: 28-22 and 22-17 is also winning, although not with a direct shot. Scan gives it a +3.5 for white with depth 35.

Puzzle 1354: the only accepted solution is not the intended one, the intended one starts with 27-22.

@BumperBalloonCars Some replies to your comments: 600: I think he meant move 5 instead of 4, it's a bit confusing because first white move is move 2 (which is also forced). 1177: You're right, o…

Puzzle 1371: The forcing 1. 31-27 is also winning. Afterwards 22-18 and then several moves to win.

Puzzle 1327: 2. 22-18 and afterwards 18-12 and 27-21 (or 27-21 and 18-12 of course) is the same combination.