[Event "Mat Plus"] [Site "?"] [Date "2007.??.??"] [Round "?"] [White "Rusz, A."] [Black "(Study 26a)"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/3p4/3P4/4p1pp/3n2pr/R7/1B3K1k w - - 0 1"] [PlyCount "9"] [EventDate "2007.??.??"] [SourceDate "2004.06.13"] 1. Rg2 (1. Bxd3 $2 g2+ $1 $19 (1... exd3 $2 2. Rg2 d2 3. Rg1+ Kh2 4. Rg2+ Kh1 5. Rg1+ {perpetual check})) 1... Ne1 $1 2. Bxe4 $1 (2. Rg1+ $2 Kh2 3. Bxe4 g2+ $19) 2... Nxg2 (2... Nf3 3. Rg1+ Kh2 4. Rg2+ Kh1 5. Rg1+ {perpetual check}) 3. Bf3 $3 (3. Bxg2+ $2 Kh2 {mutual zugzwang - virtual stalemate}) 3... Rh2 (3... gxf3 {stalemate}) (3... Kh2 4. Bxg2 {stalemate}) 4. Be4 Rh3 (4... h3 5. Bf3 gxf3 {stalemate}) 5. Bf3 {positional draw - perpetual pinning} 1/2-1/2