[Event "Diagramme étude"]
[Date "2026.04.30"]
[White "?"]
[Black "?"]
[Result "*"]
[FEN "W:W24,26,28,30,32,33,42,44,47:B7,8,12,13,15,17,19,23,36"]

1. 42-37 23-29
2. 30-25 29x38x27
3. 37-31 19x30
4. 31x22x11x2
*