Bán Jenő (09.03.1919 – 12.11.1979) Hungarian problemist who was specialized in helpmates . Author of Die Taktik der Endspiele in 1956. [Event "Die Schwalbe"] [Site "?"] [Date "1964.??.??"] [Round "?"] [White "Ban, J"] [Black "Helpmate in 4"] [Result "*"] [SetUp "1"] [FEN "5r2/8/6N1/5N2/8/2kq1p2/8/4K3 b - - 0 1"] [PlyCount "8"] {[#]} 1... Re8+ 2. Nfe7 Kd4 3. Nh4 Ke3 4. Neg6 Re4 5. Nf5# * You must activate JavaScript to enhance chess game visualization.