♔ White Relationships
L10
L20
L30
L40
L50
L60
L70
♚ Black to move
♚ Black Relationships
L10
L20
L30
L40
L50
L60
L70
King Target (Check Path)
L1 - CheckL2 - Threatens CheckL4 - 2 moves to check threatL6 - 3 moves to check threat
Piece Target (Capture/Promotion Path)
L3 - Threatens Capture/PromotionL5 - 2 moves to capture/promotionL7 - 3 moves to capture/promotion
Concept
A chess game is won by upgrading relationships: L6→L4→L2→L1→L0 (King Capture). Each move transforms the system of relationships on the board.