Explode many blocks in one go with a golden sword to rack up as many points as you can. Explode one too many bombs and you'll lose the game, but make sure to use copper swords to mitigate the damage!
Stoneblade has many nuances that makes strategizing the placement of blocks, bombs, and swords extremely engaging. Watch the developer commentary to learn more! Get it here: https://conradicals-games.itch.io/stoneblade