Good concept, unfortunately as already said in a prior comment its more down to the player to actually make it challenging since unlike Ultimate Chicken Horse you're trying to also screw your opponents over.
As a suggestion, how about having traps be placed automatically (usually put in the way) and you use your turn placing blocks to help circumvent the new traps, those blocks could also have traps attached to them, things like a wall you can jump on with a spinning blade orbiting it, or a wall with spikes on 1 side.
Honestly this concept has a lot of potential and you've already got the core framework down, its certainly something you could take further after the jam.