- The yellow box with hints overflows (and is cut off) in the middle of the second paragraph
- The site layout appears to be optimized for mobile (portrait) screens. But the actual interactive elements look to small for touch targets. For desktops (if that is a target), consider using the horizontal space more (e.g., for the box with hints or the leaderboard(s))
- The tooltips on the actions at the top of the lines games board were not in English (appear to be maybe Spanish/Portuguese). Seems like a missing translation (my language preferences are en;de).
- the lines game itself was fine, the idea is okay but I don't think I want to play more than 2-3 rounds of it (which is okay for a daily challenge-ish game). An improvement might be to highlight (with a light background on the board) what combinations of piece layouts are possible after placing the first block (e.g., the straight piece only has 4 possible layouts after the first block and one after the second).
Yellow box: You were totally right. The copy was a bit too long for certain browser/font configurations. I'm shortening the text so it fits perfectly without breaking the layout.
Layout/Targets: Spot on. The game was built strictly as for mobile to be played with one hand. Playing it on a big monitor right now is probably a bit of a torture! ;)
Tooltips: Nice catch! I had hardcoded the title attributes in Spanish and completely forgot to pass them through the translation dictionary. Fixed and deployed!
Highlighting piece projections: This is actually a really nice UX idea! I originally left it out because part of the core challenge is forcing the player to mentally visualize the rotations and placements, but I completely see how it would reduce the cognitive load.
Really appreciate the honest review!