Pentomino Japanese Sums (507)

Place identical pentominoes into the grid. The pentominoes may be rotated and reflected, but they cannot touch each other, not even diagonally. Then fill in the blank cells with numbers from 1 to 9 so that, no digit is repeated within a row or column. The numbers outside the grid indicate the sums of consecutive blocks of numbers without black cells in between in the correct order. If there are more numbers outside the same row/column, there must be at least one black cell (part of the pentomino) between the blocks of numbers.

Reference: WPC 2016 (65)