From B2 to A3, our hero's pawn swallows Rat's pawn.

Rat answers by moving the king from E8 to D8; then our hero slides the pawn across the board, from F2 to F3. Rat advances to F3 and claims our pawn.

From E2 to F3, our hero's pawn swallows Rat's pawn.

Rat's knight advances from D7 to B6. our hero advances the pawn from G2 to G4, while rat sets the pawn on A4, watching every square.

Without hurry or fear, our hero places the pawn on H4. From the dark, Rat pushes the knight to D7; then our hero's pawn takes H5, leaving H4 behind.

Rat answers by moving the king from D8 to E8. From H5 to G6, our hero's pawn swallows Rat's pawn.

With dungeon cunning, Rat brings the knight to F8. With a steady hand, our hero brings the pawn to G7, while rat's pawn advances from E7 to E6.

Promotion: on F8, our hero turns a pawn into a queen.

Rat sets the king on D7, watching every square. Check: our hero tightens the net by bringing the queen to F7.

From the dark, Rat pushes the king to D8. From F7 to E6, our hero's queen swallows Rat's pawn.

Rat answers by moving the pawn from C5 to C4. A clean strike: our hero's queen topples the pawn on C4.

With dungeon cunning, Rat brings the king to D7. From C4 to A4, our hero's queen swallows Rat's pawn.

Rat's king advances from D7 to D6. our hero gives check with the queen on D4.

Rat sets the king on E7, watching every square. From C5, our hero's queen forces Rat to defend.

From the dark, Rat pushes the king to D8. A clean strike: our hero's queen topples the pawn on C6.

Rat answers by moving the king from D8 to C8, and right after that our hero slides the pawn across the board, from G4 to G5. With dungeon cunning, Rat brings the king to B8.

With a steady hand, our hero brings the pawn to G6, while rat's king advances from B8 to A7. our hero advances the pawn from G6 to G7, and rat sets the king on B8, watching every square.

Promotion: on G8, our hero turns a pawn into a queen.

From the dark, Rat pushes the king to A7. Mate. our hero's queen on A8 leaves Rat with no escape.