Survo puzzles: www.survo.fi/puzzles --------------------------------------- Copyright (c) Survo Systems 2006-2013 The easiest way to solve these three problems may be using a Java Applet http://www.survo.fi/swap/puzzles.html based on the swapping method. Survo puzzle 333/2013 (35) #252-30659 A B C D E 1 * * * * * 16 2 * * * * * 39 6 12 15 13 9 Survo puzzle 334/2013 (80) #262-17669 A B C D E F 1 * * * * * * 27 2 * * * * * * 51 20 5 8 15 11 19 Survo puzzle 335/2013 (200) #273-32251 A B C D E F G 1 * * * * * * * 70 2 * * * * * * * 35 16 21 9 7 14 12 26