Puzzle 804: 11-16 27-31 is winning.
Mistakes in puzzles
Puzzle 1466: 37-31 32x41 38x27 22-18 33-29 42-38 is winning.
Puzzle 1473: 40-35 is winning.
Puzzle 1638: 29-33 19-23 is winning.
Puzzle 1720: 27-21 31-26 is winning.
Puzzle 1963: 35-30 39-34 is winning.
Puzzle 2136: 37-31 38-32 47-42 34-30 30x26 is winning.
Puzzle 2435: 17-21 is winning.
Puzzle 2439: 29-24 38-33 42x24 is winning.
Puzzle 2754: 27-21 is winning.