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

Rat sets the pawn on E6, watching every square; then without hurry or fear, our hero places the pawn on H3. From the dark, Rat pushes the king to E7, and right after that our hero's pawn takes H4, leaving H3 behind.

Rat answers by moving the king from E7 to E8; then our hero slides the pawn across the board, from F2 to F3. Rat advances to F3 and claims our pawn.

From G2 to F3, our hero's pawn swallows Rat's pawn.

Rat's pawn advances from C5 to C4. our hero advances the pawn from D2 to D3, while rat sets the pawn on G5, watching every square.

From H4 to G5, our hero's pawn swallows Rat's pawn.

From the dark, Rat pushes the knight to B6; then our hero's king takes F2, leaving E1 behind. Rat answers by moving the knight from B6 to A4, and right after that our hero slides the king across the board, from F2 to G3.

With dungeon cunning, Rat brings the knight to C3. With a steady hand, our hero brings the pawn to E4, while rat's knight advances from C3 to B5.

our hero advances the pawn from A3 to A4. Rat moves the pawn from C4 to D3 and topples our hero's pawn.

A clean strike: our hero's pawn topples the pawn on D3.

From the dark, Rat pushes the pawn to E5. From A4 to B5, our hero's pawn swallows Rat's knight.

Rat answers by moving the pawn from C6 to C5; then our hero slides the king across the board, from G3 to G4. With dungeon cunning, Rat brings the pawn to C6.

With a steady hand, our hero brings the pawn to B6, and rat's king advances from E8 to D8. our hero advances the pawn from G5 to G6, while rat sets the pawn on A4, watching every square.

Without hurry or fear, our hero places the pawn on G7. From the dark, Rat pushes the king to E7.

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

Rat answers by moving the pawn from C5 to C4. From D3 to C4, our hero's pawn swallows Rat's pawn.

With dungeon cunning, Rat brings the king to F6. From F8, our hero's queen forces Rat to defend.

Rat's king advances from F6 to G6. Check: our hero tightens the net by bringing the queen to F5.

Rat sets the king on G7, watching every square; then without hurry or fear, our hero places the king on H5. From the dark, Rat pushes the pawn to C5.

By taking the pawn on E5, our hero drives Rat into check.

Rat answers by moving the king from G7 to G8; then our hero slides the queen across the board, from E5 to E7. With dungeon cunning, Rat brings the king to H8.

With a steady hand, our hero brings the king to H6, and rat's pawn advances from A4 to A3. Mate. our hero's queen on G7 leaves Rat with no escape.