Alberto C. slides the bishop across the board, from F1 to A6, and right after that with dungeon cunning, Bat brings the pawn to D4. Alberto C. captures the enemy knight: the bishop leaps from A6 to B7.

Bat's king advances from E8 to E7. Alberto C. claims the enemy pawn by landing on E4.

Bat sets the rook on H7, watching every square. Alberto C. captures the enemy rook: the bishop leaps from E4 to H7.

From the dark, Bat pushes the king to F7. From H5, Alberto C.'s queen forces Bat to defend.

Bat answers by moving the king from F7 to G7. Check: Alberto C. tightens the net by bringing the queen to G6.

With dungeon cunning, Bat brings the king to F8. Alberto C. gives check with the queen on G8.

Bat's king advances from F8 to E7. Alberto C. advances the knight from G1 to F3; then bat sets the king on F6, watching every square.

Check: Alberto C. tightens the net by bringing the queen to G5.

From the dark, Bat pushes the king to E6. Alberto C. gives check with the queen on F5.

Bat answers by moving the king from E6 to D5. From G8, Alberto C.'s bishop forces Bat to defend.

With dungeon cunning, Bat brings the king to C6. Check: Alberto C. tightens the net by bringing the queen to E4.

Bat's king advances from C6 to C7. Alberto C. advances the knight from F3 to G5, and right after that bat sets the pawn on A6, watching every square.

Without hurry or fear, Alberto C. places the queen on D5. From the dark, Bat pushes the pawn to A3. Alberto C. claims the enemy pawn by landing on A3.

Bat answers by moving the king from C7 to B8, and alberto C. slides the knight across the board, from A3 to C4. With dungeon cunning, Bat brings the king to A7.

Alberto C. claims the enemy pawn by landing on D6.

Bat's pawn advances from B6 to B5. Alberto C. captures the pawn on C5 and leaves Bat in check.

Bat sets the king on A8, watching every square, while without hurry or fear, Alberto C. places the queen on C7. From the dark, Bat pushes the pawn to E4.

Mate. Alberto C.'s queen on B7 leaves Bat with no escape.