- logger.debug('Polybius break attempt using key {0} (wrap={1}, merging {2}), '
- 'columns as {3}, rows as {4} (column_first={5}) '
- 'gives fit of {6} and decrypt starting: '
- '{7}'.format(keyword, wrap_alphabet, letters_to_merge,
- column_order, row_order, column_first,
- fit, sanitise(plaintext)[:50]))