Sente's turn to play This is a Yagura endgame position where Gote took the 14 pawn with Px14 just after Sente had pushed a sacrificing Pawn from 15 to 14 engaging in the edge attack(For Firefox users, please forward one move from the displayed position to have the problem. Sorry, this cannot be displayed on some smartphones). Please find a thirteen-move-mate-line from here. Please pay your attention to how many attacking pieces there are on the board and your piece stand. A shogi general guideline says "Attack with four pieces lasts, it may be not enough with three pieces". In this problem, you have seven attacking pieces such as the 81 Rook, 68 Bishop, 37 kNight, 19 Lance on the board and a Gold, Silver and kNight in hand which are sufficient enough to deliver a mate to the King. Please enjoy the luxury of your offensive measures. You can replay the answer line by clicking the arrow directing to the right under the diagram. Also, an exclamation mark sometimes appears there on a specific move during your replay, then click it and you can read my comments on that move. After reading my comments, click the exclamation mark again then the comment window will go away to move forward.