A clean strike: Francesc's bishop topples the rook on F4.

Gelatin's pawn advances from G7 to G6. From F4 to D6, Francesc's bishop swallows Gelatin's bishop.

Gelatin sets the pawn on G5, watching every square; then without hurry or fear, Francesc places the pawn on C3. From the dark, Gelatin pushes the knight to E4.

From C3 to B4, Francesc's pawn swallows Gelatin's pawn.

Gelatin answers by moving the pawn from G5 to G4. A clean strike: Francesc's pawn topples the pawn on C5.

With dungeon cunning, Gelatin brings the king to F7. From C5 to B6, Francesc's pawn swallows Gelatin's pawn.

Francesc activates Backstab and silently removes a threat from Gelatin.

Gelatin's knight advances from E4 to D2. A clean strike: Francesc's king topples the knight on D2.

Gelatin sets the knight on G5, watching every square. Without hurry or fear, Francesc places the pawn on B7; then from the dark, Gelatin pushes the pawn to H5.

Promotion: on B8, Francesc turns a pawn into a queen.

Gelatin answers by moving the pawn from H5 to H4. Check: Francesc tightens the net by bringing the queen to F8.

With dungeon cunning, Gelatin brings the king to G6, while with a steady hand, Francesc brings the bishop to E5. Check from Gelatin: the knight plants itself on E4.

Francesc advances the king from D2 to E3; then gelatin sets the king on H7, watching every square. A clean strike: Francesc's king topples the knight on E4.

Gelatin's pawn reaches D5 and threatens Francesc's king.

From E4 to D5, Francesc's king swallows Gelatin's pawn.

Gelatin answers by moving the king from H7 to G6. From F6, Francesc's queen forces Gelatin to defend.

With dungeon cunning, Gelatin brings the king to H7. Francesc delivers the final mate from G7.