Sunday, 1 November 2026
Case #12 · Extreme · Midgame
This case starts from a real middlegame that arose from the Colle System, with White to move. Find the three moves by White and the three moves by Black that turn the start position into the target.
Clues on the board
White has lost: 1 bishop, 1 pawn.
Black has lost: 2 pawns.
Every missing piece was captured during these six moves.
White has lost: 1 bishop, 1 pawn.
Black has lost: 2 pawns.
Every missing piece was captured during these six moves.
New to retro chess? Read the retrograde analysis guide.