With a steady hand, Benjamín A. brings the king to F2; then alpha Bat's bishop advances from E7 to D8. Benjamín A. advances the king from F2 to E1, and right after that alpha Bat sets the bishop on G5, watching every square.

Without hurry or fear, Benjamín A. places the king on D1. From the dark, Alpha Bat pushes the king to D8, while benjamín A.'s king takes C1, leaving D1 behind.

Alpha Bat answers by moving the rook from F5 to F7, and benjamín A. slides the king across the board, from C1 to B2. With dungeon cunning, Alpha Bat brings the pawn to E3.

Benjamín A. claims the enemy pawn by landing on E3.

Alpha Bat's rook advances from F7 to G7. Benjamín A. captures the enemy pawn: the pawn leaps from E3 to F4.

Alpha Bat sets the bishop on F6, watching every square, while without hurry or fear, Benjamín A. places the king on B3. From the dark, Alpha Bat pushes the king to C7, and benjamín A.'s king takes C4, leaving B3 behind.

Alpha Bat answers by moving the king from C7 to B7. Benjamín A. claims the enemy pawn by landing on D3.

With dungeon cunning, Alpha Bat brings the rook to G1. With a steady hand, Benjamín A. brings the king to E4; then alpha Bat's king advances from B7 to C6.

Benjamín A. advances the pawn from F4 to F5, and right after that alpha Bat sets the pawn on H2, watching every square. Without hurry or fear, Benjamín A. places the king on F3.

On H1, Alpha Bat promotes and gains a reinforcing queen.

Benjamín A.'s king takes F2, leaving F3 behind. Alpha Bat's edge falls on G2 and it is mate against Benjamín A.