Der-Die-Das (4220 German Nouns Gender Trainer)

This deck contains 4220 German nouns which gender is difficult to determine by the standard grammar rules, so they need to be learned by brute force. English translations are also available, but the purpose of the deck is to learn gender, not translation, so translation is shown both on the front and back card. Bonus - each answer is colorized (blue for masculine, red for feminine and green for neuter), to create a mnemonic link.