*othello
つばめ定石 虎崩し
f5d6c3g5c6c5c4b6f6f4f3e7f7b4e6d3b5g6a3e3g4h3c2e2c7a5a4a6a7f8h5h4d2c8h2g3e1f1d1g2e8f2h1g1h6d8d7b2b3c1a2a1b1g8b7b8g7a8h8h7
虎定石の進行を崩すのに有効