A clean strike: Alfonso M.'s queen topples the knight on B3.

With dungeon cunning, Bone Lord brings the pawn to E5. From G2 to H3, Alfonso M.'s pawn swallows Bone Lord's knight.

Bone Lord's queen advances from H7 to G8. By taking the queen on G8, Alfonso M. drives Bone Lord into check.

Bone Lord sets the king on E7, watching every square. Check: Alfonso M. tightens the net by bringing the queen to G7.

From the dark, Bone Lord pushes the king to E6. A clean strike: Alfonso M.'s queen topples the pawn on H6.

Bone Lord answers by moving the king from E6 to E7, and right after that alfonso M. slides the rook across the board, from A1 to A7. With dungeon cunning, Bone Lord brings the king to D8.

With a steady hand, Alfonso M. brings the pawn to H4, while bone Lord's bishop advances from D7 to C6. Alfonso M. advances the rook from H1 to H2, and bone Lord sets the pawn on B3, watching every square.

By taking the pawn on F6, Alfonso M. drives Bone Lord into check.

From the dark, Bone Lord pushes the king to C7. From F6 to F5, Alfonso M.'s queen swallows Bone Lord's bishop.

Bone Lord answers by moving the king from C7 to B6; then alfonso M. slides the rook across the board, from A7 to A3. With dungeon cunning, Bone Lord brings the pawn to E4.

With a steady hand, Alfonso M. brings the queen to F6, and bone Lord's pawn advances from D6 to D5. Alfonso M. delivers the final mate from D8.