Popeye Linux-2.6.31-22-server-unknown-64Bit v4.59 (1024 MB) 1...Ra6-a5 + 2.Sf7-g5 Rf1-f7 3.Sg6-e7 + Rf7*e7 # 1.Bh4-g5 Rf1-h1 + 2.Sg6-h4 Ra6-g6 3.Sf7-d6 + Rg6*d6 # solution finished. Time = 5.030 s 1... Rxf7? 2.Se7+ Rxe7+ 3.Kg5! 1.Bg5 Rxg6? 2.Sd6+ Rxd6+ 3.Kh4! Dentist-theme with preliminary line openings by the both white S. Umnov-theme: the black Rooks occupy the squares left by the white Ss. Self-pins of white Ss. Interchange of function between two duos of pieces: black Ra6/Rf1 and white Sf7/Sg6. Key move, which de-blocks a square and blocks other square.