There are five rounds to the game. The first round sees you trying to guess the word, with correct, misplaced, and incorrect letters shown in each guess. If you guess the correct answer, it'll take you to the next hurdle, providing the answer to the last hurdle as your first guess. This can give you several clues or none, depending on the words. For the final hurdle, every correct answer from previous hurdles is shown, with correct and misplaced letters clearly shown.
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
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Australians dominate at the very top of our list but the overall numbers are split evenly and England lead the way for all-rounders