Rush Hour Klotski Medium — Set 81

Medium Rush Hour — klotski #81

Title

Medium Rush Hour — klotski #81

Blocks

• {"id":"K","label":"K (Key 2\u00d72)","orientation":"H","size":2,"row":0,"col":1}
• {"id":"A","label":"Block A (1\u00d72)","orientation":"V","size":2,"row":0,"col":0}
• {"id":"B","label":"Block B (1\u00d72)","orientation":"V","size":2,"row":0,"col":3}
• {"id":"C","label":"Block C (2\u00d71)","orientation":"H","size":2,"row":3,"col":1}

TargetBlock

K

ExitEdge

bottom

ExitPosition

1

Solution

• {"blockId":"A","direction":"D","steps":2,"description":"Slide A down 2."}
• {"blockId":"C","direction":"L","steps":1,"description":"Slide C left 1."}
• {"blockId":"B","direction":"D","steps":2,"description":"Slide B down 2."}
• {"blockId":"K","direction":"R","steps":1,"description":"Slide K right 1."}
• {"blockId":"K","direction":"D","steps":2,"description":"Slide K down to exit."}

SolutionMoveCount

5

Question

What is the minimum number of moves to free the target block? Write the move sequence using the format: Block ID + Direction + Steps (e.g. "A-Right-2").

Instructions

Slide the blocks (no lifting or rotating) to move the Key Block (K) through the exit at the bottom. Blocks slide in their allowed direction only.

Legend

• Block coordinates use (row, col) from the top-left corner (row 0, col 0).
• H = horizontal block, V = vertical block.
• Moves: U=Up, D=Down, L=Left, R=Right, followed by number of spaces.