Every hand is solvable: engineering a block puzzle that never cheats

Block puzzles — the 8×8 "place three pieces, clear lines" genre — share a dirty secret: sometimes the game simply deals you pieces that cannot fit anywhere. You didn't blunder. The board had room. The generator just rolled three shapes that don't go together, and your run is over.

Players feel this even when they can't name it. It's why runs in this genre so often end with "that was unfair" instead of "I messed up". When I built and Android — fully offline, no account, no forced ads. It's built with Flutter; the whole generation pipeline is pure Dart. If you try it, I'd genuinely love feedback on difficulty pacing.

— Beycan, solo dev at NextFly