Code:
2.67..5..5...2...6.4.....9...29.8..54..6.1..77.5..39...2...........9......7..2...
..3..78.97...8...4.1.....6.3..8.56..9..2.6..8..64..7.2.......7.....4.......7..9..
...5.3.......8...............41.68..3..9.8..2..12.53...............9.......7.2...
..4..9.......6.....7.......7.5..34..3..8.4..5..15.6..8.5.....9.2...5...39.73..6..
...3..8......9...........6...86..1.32..5.9..63..1.42...9.....5.7...2...1..1..57.4
..3..78.97...8...4.1.....6.3..8.56..9..2.6..8..64..7.2.......7.....4.......7..9..
...5.3.......8...............41.68..3..9.8..2..12.53...............9.......7.2...
..4..9.......6.....7.......7.5..34..3..8.4..5..15.6..8.5.....9.2...5...39.73..6..
...3..8......9...........6...86..1.32..5.9..63..1.42...9.....5.7...2...1..1..57.4
I would call this a Novice-level puzzle. djApe lists it as a level 2, whatever that means. Nothing more difficult than hidden triples and naked quads.