Logic Masters Deutschland e.V.

Draw a single, non-intersecting loop through some of the cells in the grid. The loop connects the center of orthogonal adjacent cells.

Numbers on the left outside of the grid show the sum of the digits in the corresponding row (in right order). Each sum is on a horizontal loop segment. A loop segment goes from a loop turn to another loop turn.

Numbers above the grid show the sum of the digits in the corresponding column (in right order). Each sum is on a vertical loop segment. A loop segment goes from a loop turn to another loop turn.

All outside clues are given.

Replace the letters by digits 0-9. Equal letters mean equal digits, different letters mean different digits. A dot '.' means any digit from 0 - 9. If a sum is double-digit, it cannot start with a '0'.