100 Tougher Puzzles White to play and win! You can check off as completed when all 10 exercises on each sheet are correct. If you make one mistake, you redo all the exercises on the sheet (refresh page). 1 – 10 11 – 20 21 – 30 31 – 40 41 – 50 51 – 60 61 – 70 71 – 80 81 – 90 91 – 100 HOME CONTENT LEVEL CONTENT TOPIC CONTENT 100 Tougher Puzzles Sider: 1 2 3 4 5 6 7 8 9 10 11