Survo puzzles: www.survo.fi/puzzles --------------------------------------- Copyright (c) Survo Systems 2006-2007 The easiest way to solve these three problems may be using a new Java Applet http://www.survo.fi/swap/puzzles.html based on the swapping method. Survo puzzle 114/2008 (10) #442-60740 A B C D 1 12 * * * 33 2 * 15 5 10 46 3 * * 4 9 40 4 * 6 * * 17 50 45 13 28 Survo puzzle 115/2008 (700) #443-34444 A B C D 1 * * * * 36 2 * * * * 17 3 * * * * 29 4 * * * * 54 17 29 50 40 Survo puzzle 116/2008 (700) #444-12682 A B C D 1 * * * * 39 2 * * * * 46 3 * * * * 18 4 * * * * 33 55 39 28 14