Hikaru vs lyonbeast

Black castled early with **7...O-O**, securing king safety and connecting the rooks. Then **8...Re8** placed the rook on the open e‑file, and later **14...Rb8** followed by **15...Rb4** moved the rook to the b‑file where it attacked the b2 pawn, illustrating the principle of using rooks to pressure weak pawns and open lines.

Black used the bishop aggressively: **24...Be3+** forced White's king to the edge, and after the king stepped to b1, **25...c5** gained space in the center. The rook sacrifice **27...Rxe5** captured a central pawn, while **28...Bd4** centralized the bishop to control key squares. Later **35...Bxb2** won another pawn, and the coordinated attack culminated with **38...Bxc8**, capturing White's rook on the seventh rank. These moves demonstrate how coordinating pieces on open lines and targeting opponent's weak pawns can create decisive material gains.

After winning the rook on **38...Bxc8**, Black's bishop and rook dominated the board, leaving White with no counterplay and a vulnerable king. By keeping the rook active on the seventh rank and the bishop controlling escape squares, Black converted the material advantage smoothly, showing the endgame principle of using active pieces to restrict the opponent and force resignation.