our hero's rook takes B1, leaving A1 behind. Rat King gives check with the pawn on C2.

our hero captures the enemy bishop: the rook leaps from B1 to B4.

With dungeon cunning, Rat King brings the rook to B7. our hero claims the enemy knight by landing on B5.

On C1, Rat King promotes and gains a reinforcing queen.

our hero advances the king from E1 to E2. Rat King gives check with the queen on C4.

Without hurry or fear, our hero places the king on F3. Rat King's queen reaches C6 and threatens our hero's king.

our hero captures the enemy pawn: the king leaps from F3 to G3.

Check from Rat King: the pawn plants itself on F4.

our hero slides the king across the board, from G3 to G4. Rat King gives check with the queen on C8.

our hero captures the enemy pawn: the king leaps from G4 to F4.

Rat King's pawn reaches G5 and threatens our hero's king.

our hero advances the king from F4 to E4. Check from Rat King: the queen plants itself on E6.

Without hurry or fear, our hero places the king on D4. From the dark, Rat King pushes the knight to C5, while our hero's rook takes B2, leaving B5 behind.

Rat King's queen reaches E5 and threatens our hero's king.

our hero slides the king across the board, from D4 to C4. In that instant, Backstab: one of Rat King's pieces vanishes without a trace.

Check from Rat King: the pawn plants itself on B5.

With a steady hand, our hero brings the king to B4. Rat King gives check with the queen on D4.

our hero advances the king from B4 to A5. Rat King's edge falls on A4 and it is mate against our hero.