Need to develop a multiplayer Android and iOS turn based card game

The rules of the game will be provided later. The high level requirements is as follows: 1. Is a 4 player game (playing in pair - player 1 & 3 vs player 2 & 4). Should have 4 playing mode: 1 player, 2 players, 3 players and 4 players. If the game is in 1 player mode, the remaining 3 will be system/app and so on. 2. Player will invite known players or auto match will happen - need custom invite screen 3. Waiting screen for all players to accept invitation 4. Play screen (similar to [login to view URL]) 6. Leaderboard/Best players 5. Able to share on social media 6. Cross platform play - iOS and Android users can play the game together Must produce hight quality documented code.