Game 6. 1. 24-27 32x23 2. 16-19 23x16 3. 20x18 14x23 4. 5x14 23-19 5. 8-11 Game Over. If 4...21-17 5.14x21 23-18 6. 21-25 18-14 7. 25-29 White must cross 7th check or be lock in double corner and therefore 14-10 8. 29-15 10x19 9. 8-11 Game Over.
Game 7. 1. 24-27 32x23 2. 9-13 Several variations - Black Wins All
Game 3 looks like for a draw even with white 1 piece advantage; 1. 7-11 22-17 poor effort and black wins. If 1...22-18 2.14-17 21x14 3.11-16 Game Draw
Game 4. I do not see a win in game 4. 1.2-6 strong but 13-9 2.6x13 18-14 strengthens white position. Black 3. 24-28 26-22 4. 20-24 gives white a cool finish 32-27 5. 24x31 15-10 6.31x17 10x3 7. 17x10 3x21 (Draw). Equally 3. 24-27 32x23 (Draw)
Good job on game 3, very hard to find the draw. Fantastic draw in game 4, I missed it - yet black can pitch the checker back immediately with 3.13-17 14x21 4.24-28 and win.
Game 1. 1...14-17 11x4 2. 17x25 4x17 3. 24-28 29x22 4.28-32 Game Over, If white plays 2...4x22, 3. 25x17 13-9 4. 24-28 9-5 5.10-15 29-25 6. 15-19 Game Over
Game 2. is fairly simple. 1...6-9 10x28 2. 3-8 12x3 9-14 game over
it is 14-18 and not 14-17; there is also a second line with king jumping 4:22. It is good that you started with fairly simple excercises, they teach the solving techniques. Learn to solve a card or two each day to keep the mind sharp.