our hero gives check with the rook on A8.

Alpha Bat sets the bishop on B8, watching every square. A clean strike: our hero's bishop topples the bishop on F4.

Alpha Bat gives check with the rook on E3.

From F4 to E3, our hero's bishop swallows Alpha Bat's rook.

Alpha Bat's knight reaches G2 and threatens our hero's king.

our hero slides the king across the board, from E1 to F2. Alpha Bat captures the bishop on E3 and puts our hero in check.

With a steady hand, our hero brings the king to E2, and alpha Bat's king advances from E8 to F8. By taking the bishop on B8, our hero drives Alpha Bat into check.

Alpha Bat sets the king on G7, watching every square, and right after that without hurry or fear, our hero places the rook on B7. From the dark, Alpha Bat pushes the king to F6.

A clean strike: our hero's rook topples the pawn on D7.

Alpha Bat answers by moving the pawn from F5 to F4, and right after that our hero slides the rook across the board, from D7 to D4. With dungeon cunning, Alpha Bat brings the king to G7.

A clean strike: our hero's rook topples the pawn on E4.

Alpha Bat's king advances from G7 to H6. From E4 to E7, our hero's rook swallows Alpha Bat's pawn.

Alpha Bat sets the king on G6, watching every square; then without hurry or fear, our hero places the rook on A7. From the dark, Alpha Bat pushes the pawn to F5.

our hero gives check with the rook on A6.

Alpha Bat answers by moving the king from G6 to G5; then our hero slides the rook across the board, from A6 to A8. With dungeon cunning, Alpha Bat brings the knight to H4.

Check: our hero tightens the net by bringing the rook to G8.

Alpha Bat's king advances from G5 to H5. our hero gives check with the rook on H8.

Alpha Bat sets the king on G4, watching every square. From G8, our hero's rook forces Alpha Bat to defend.

From the dark, Alpha Bat pushes the knight to G6. By taking the knight on G6, our hero drives Alpha Bat into check.

Alpha Bat answers by moving the king from G4 to H5, and right after that our hero slides the rook across the board, from G6 to A6. With dungeon cunning, Alpha Bat brings the king to G4.

From G6, our hero's rook forces Alpha Bat to defend.

Alpha Bat's king advances from G4 to H4. our hero advances the king from E2 to F3, and alpha Bat sets the pawn on E2, watching every square.

A clean strike: our hero's king topples the pawn on E2.

Check from Alpha Bat: the pawn plants itself on F3.

From E2 to F3, our hero's king swallows Alpha Bat's pawn.

Alpha Bat answers by moving the king from H4 to H5; then our hero slides the rook across the board, from G6 to A6. With dungeon cunning, Alpha Bat brings the pawn to F4.

From F3 to F4, our hero's king swallows Alpha Bat's pawn.

Alpha Bat's king advances from H5 to H4. Mate. our hero's rook on H6 leaves Alpha Bat with no escape.