https://www.digipuzzle.net/digipuzzle/kids/puzzles/numbersearch_abc.htm?language=english&linkback=../../../education/alphabet/index.htm
https://www.digipuzzle.net/minigames/draw/mysterypictures_alphabet.htm?language=english&linkback=../../education/alphabet/index.htm
1) https://www.abcya.com/games/alphabet_puzzle
2) https://www.abcya.com/games/alphabet