Visualisation & Calculation

Train your mind's eye: picture pieces, paths and tactics on a board you can't see.

Place the pieces

Recreate a position from memory by placing the pieces back on an empty board.

Count how many legal moves a side has in a given position.

Track a piece's route across the board without moving it.

Steer one piece across a crowded board, stopping only on safe squares, to give check or reach a target.

Picture the position and make it happen: place the missing pieces to checkmate, or spot the double attack.

Solve tactics on an empty board: visualise the listed pieces, then click the winning move.