A clean strike: Alberto C.'s knight topples the pawn on A3.

Stealth. Alberto C.'s trap leaves Rat confused.

From the dark, Rat pushes the pawn to E6. Alberto C.'s pawn takes E3, leaving E2 behind; then rat answers by moving the knight from D7 to F6.

Alberto C. slides the pawn across the board, from D2 to D3. With dungeon cunning, Rat brings the king to E7, and with a steady hand, Alberto C. brings the pawn to C3.

Rat's pawn advances from E6 to E5, while alberto C. advances the pawn from C3 to C4. In that instant, Backstab: one of Rat's pieces vanishes without a trace.

Rat sets the pawn on E4, watching every square; then without hurry or fear, Alberto C. places the pawn on D4. From the dark, Rat pushes the king to F7, and right after that alberto C.'s bishop takes D2, leaving C1 behind.

Rat answers by moving the knight from F6 to G8. From D2 to A5, Alberto C.'s bishop swallows Rat's pawn.

With dungeon cunning, Rat brings the knight to F6. A clean strike: Alberto C.'s bishop topples the pawn on C7.

Rat's knight advances from F6 to H7. From D1 to G4, Alberto C.'s queen swallows Rat's pawn.

Rat sets the pawn on C5, watching every square. A clean strike: Alberto C.'s pawn topples the pawn on C5.

From the dark, Rat pushes the king to F6. From G4 to E4, Alberto C.'s queen swallows Rat's pawn.

Rat answers by moving the king from F6 to F7. Alberto C. slides the rook across the board, from A1 to D1, and with dungeon cunning, Rat brings the knight to F8.

Alberto C. gives check with the queen on F4.

Rat's king advances from F7 to E8. From D8, Alberto C.'s rook forces Rat to defend.

Rat sets the king on E7, watching every square. Check: Alberto C. tightens the net by bringing the queen to E5.

From the dark, Rat pushes the king to F7, and right after that alberto C.'s knight takes F3, leaving G1 behind. Rat answers by moving the king from F7 to G8.

Alberto C. slides the queen across the board, from E5 to F6, while with dungeon cunning, Rat brings the pawn to G5. By taking the pawn on G5, Alberto C. drives Rat into check.

Rat's king advances from G8 to H7. Alberto C. gives check with the bishop on D3.

Rat sets the king on H8, watching every square. Mate. Alberto C.'s rook on F8 leaves Rat with no escape.