| Designer | : | Frans de Vreugd |
| Craftsman | : | Bernard Schweitzer |
| Category | : | Interlocking |
| Pieces | : | 6 |
| This puzzle is based on the Six-Board Burr by Junichi Yananose. The dovetails reduce the number of possible move dramatically. The solution is a unique level six (six moves to remove the first piece). | ||