A clean strike: Aldana M.'s pawn topples the pawn on C3.

With dungeon cunning, Slug brings the bishop to C2. From A2 to B3, Aldana M.'s pawn swallows Slug's pawn.

Slug's bishop advances from C2 to E4. Aldana M. advances the pawn from D2 to D3, while slug sets the bishop on B7, watching every square.

Without hurry or fear, Aldana M. places the bishop on A3. From the dark, Slug pushes the bishop to A8; then aldana M.'s pawn takes C4, leaving C3 behind.

Slug answers by moving the king from E8 to E7. From C4 to B5, Aldana M.'s pawn swallows Slug's pawn.

With dungeon cunning, Slug brings the king to F8. Long castle: Aldana M. shifts the king to a new refuge, while slug's bishop advances from A8 to F3.

From G2 to F3, Aldana M.'s pawn swallows Slug's bishop.

Slug sets the pawn on F6, watching every square. A clean strike: Aldana M.'s pawn topples the pawn on G4.

From the dark, Slug pushes the king to E7, and right after that aldana M.'s knight takes F3, leaving G1 behind. Slug answers by moving the king from E7 to F8; then aldana M. slides the pawn across the board, from G4 to G5.

Slug advances to G5 and claims our pawn.

From F3 to G5, Aldana M.'s knight swallows Slug's pawn.

Slug's pawn advances from D6 to D5. Check: Aldana M. tightens the net by bringing the knight to E6.

Slug sets the king on E7, watching every square. From E6 to C5, Aldana M.'s knight swallows Slug's pawn.

From the dark, Slug pushes the king to D8. From B7, Aldana M.'s knight forces Slug to defend.

Slug answers by moving the king from D8 to E8. Check: Aldana M. tightens the net by bringing the knight to D6.

With dungeon cunning, Slug brings the king to F8. Aldana M. gives check with the knight on C8.

Slug's king advances from F8 to E8. From C8 to B6, Aldana M.'s knight swallows Slug's pawn.

Slug sets the king on D8, watching every square. A clean strike: Aldana M.'s knight topples the pawn on D5.

From the dark, Slug pushes the king to C8, and right after that aldana M.'s pawn takes B6, leaving B5 behind. Slug answers by moving the king from C8 to B8; then aldana M. slides the knight across the board, from D5 to B4.

With dungeon cunning, Slug brings the king to B7. With a steady hand, Aldana M. brings the knight to D5, and slug's king advances from B7 to C6.

Aldana M. advances the pawn from D3 to D4. Slug advances to D5 and claims our knight.

Without hurry or fear, Aldana M. places the pawn on E3. From the dark, Slug pushes the king to E4; then aldana M.'s pawn takes H3, leaving H2 behind.

Slug answers by moving the king from E4 to D5, and right after that aldana M. slides the pawn across the board, from H3 to H4. With dungeon cunning, Slug brings the king to C6.

With a steady hand, Aldana M. brings the pawn to H5, while slug's king advances from C6 to B7. Aldana M. advances the pawn from H5 to H6, and slug sets the king on B8, watching every square.

Without hurry or fear, Aldana M. places the pawn on H7. From the dark, Slug pushes the king to A8. Promotion: on H8, Aldana M. turns a pawn into a queen.

Slug answers by moving the king from A8 to B7; then aldana M. slides the queen across the board, from H8 to F6. With dungeon cunning, Slug brings the king to B8.

Aldana M. gives check with the queen on D6.

Slug's king advances from B8 to C8. Mate. Aldana M.'s queen on C7 leaves Slug with no escape.