What do you get when you cross Sudoku with Japanese Gardens?
 
Hiroba!
 
Take turns to place numbered pebbles in spaces on the board to control the most gardens. Watch out though as each row, column and garden can't contain more than 1 pebble of each number. Strategically place your pebbles to win koi to double the score of your best garden.
 
Who will remain Zen enough to outplay their opponents?