A clean strike: our hero's queen topples the pawn on A4.

Pit Spider answers by moving the bishop from E6 to D5, and right after that our hero slides the bishop across the board, from F1 to B5. With dungeon cunning, Pit Spider brings the knight to F2.

By taking the rook on D7, our hero drives Pit Spider into check.

In that instant, Backstab: one of Pit Spider's pieces vanishes without a trace.

Pit Spider's king advances from E8 to D8, and our hero advances the bishop from D7 to B5. Pit Spider sets the bishop on C6, watching every square.

Check: our hero tightens the net by bringing the queen to A8.

From the dark, Pit Spider pushes the king to E7. From E1 to F2, our hero's king swallows Pit Spider's knight.

Pit Spider answers by moving the pawn from B4 to B3. A clean strike: our hero's bishop topples the bishop on C6.

Pit Spider advances to C6 and claims our bishop.

With a steady hand, our hero brings the knight to F3. Pit Spider's pawn advances from H5 to H4. our hero gives check with the rook on E1.

Pit Spider sets the king on D7, watching every square. From E8, our hero's queen forces Pit Spider to defend.

From the dark, Pit Spider pushes the king to C7. Check: our hero tightens the net by bringing the rook to E7.

Pit Spider answers by moving the king from C7 to D6. And it is checkmate: our hero ends the game on D7.