[Event "SuperProblem"] [Site "?"] [Date "2017.??.??"] [Round "?"] [White "(4) Grigory Popov (RUS)"] [Black "?"] [Result "1/2-1/2"] [SetUp "1"] [FEN "1r1r4/1PPP4/b2p4/pp6/kp6/p4p2/P1P2p1p/3N1Kb1 w - - 0 0"] [PlyCount "10"] 1. c8=R $1 (1. c8=N $2 b3 $1 (1... Rxb7 $2 2. Nb6+ Rxb6 3. Nc3+ bxc3 {stalemate }) 2. Nc3+ Kb4 $19) (1. c8=Q $2 h1=Q 2. Nc3+ bxc3 3. Qc4+ b4 $1 $19 (3... bxc4 $2 {stalemate})) (1. c8=B $2 Rxb7 $1 $19 (1... h1=Q $2 2. Nc3+ bxc3 {stalemate} )) 1... Rdxc8 $1 2. dxc8=R $1 Rxc8 3. bxc8=R $1 h1=Q 4. Nc3+ bxc3 5. Rc4+ b4 { stalemate} 1/2-1/2