I've found more than one level where you can make all the lines connect according to the rules, but even so the game doesn't accept it because it's not the expected solution? I think I found the first one at level 12 that was this way. also, you description has some extra text....

NW.js is a special official shell for games developed in the Java language. Very rarely, an antivirus may consider this to be dangerous software, but this is an error. You can check in Google - NW.js is....

To quickly get all the achievements, go to the game menu and press the Q button on your game keyboard 7 times.

If you have problems. - You can activate the cheat system and enter the number of any location ( 1 - 2 ) and the level number ( 1 - 100 main game and 1 - 50 DLC ), to do this, go to any level and press 3 clicks in the upper left corner of the screen with the left mouse button. - The game is saved automatically only when the level is completed or when the "Save" button is pressed. - VERY RARELY A SAVE CAN GET CORRUPTED and then you will need to go to any level using the level selection menu and activat...

Puzzle 59 has two "identical" blue arcs, but after completing the puzzle it didn't mark it as done. I had to swap these two pieces that are completely identical (no other lines on them, same shape and color). Once I swapped them the puzzle realized I had completed it but it was seriously a head scratcher as to what the issue was....