Contains over 3400 four-character idioms.★ LevelBeginner: Questions will be given from about 200 four-character idioms.Intermediate: Questions will be given from about 1000 four-character idioms.Advanced: Questions will be given from all the recorded four-character idioms.★ How to playFour four-character idioms are hidden in a 4x4 square.Select a letter from the 4x4 squares and fill in the bottom 4 squares to complete the four-character idiom.When you press the "Done" button, the correct or incorrect answer will be judged.If the answer is correct, the score will be added.If the answer is incorrect, the number of touches at the bottom left of the screen will be subtracted. The game ends when the answer is incorrect when the number of touches is 0.By pressing the hint button on the upper left of the screen, you can check some of the readings and meanings of the four four-character idioms. You can see the hint once you see it as many times as you like until the four four-character idioms are switched. There is a limit to the number of times a hint can be displayed.★ ScoreIf you answer correctly, the score will be added according to the following rules.Basic point: 5Answer in less than 10 seconds: +3Answer in less than 20 seconds: +2Answer in less than 30 seconds: +1If youre looking at tips: -3+10 for every 4 correct answers★ LibraryThe correct four-character idiom has been found and is displayed on the library screen.You will be able to check the reading and meaning.Please note that if you exit after the game ends and before moving to the result screen, the discoveries will not be saved.★ License notationThe sound effect material of the following site is used."Oto Logic""Sound effect lab"The following font materials are used.・ Source Han Serif