Quarterturn Crate
Pack the four-cut queue L → bar → L → square into the crate. Each placement turns the WHOLE crate clockwise, including its striped rim. Held cuts have only upright and quarter-turned orientations. Tap the top-left footprint anchor. An empty crate turn can change the available fit, but two consecutive empty turns lose. Undo restores the last placement and its crate turn. Fill all sixteen cargo cells.
Tap tiles, or use Tab and Enter. Arrow keys move board focus.
Challenge notes & source
This challenge has a reachable defeat condition described in the rules. A terminal result locks controls until Reset seed.
Finite shaped cuts and a rotating rim replace full-width strips; orientation and exact packing matter.
Original compact interpretation, not a recreation. Source study: Pentris. No source code, music or artwork copied.