authors: 
  - Dieter Müller
  - Müller, Dieter
source: Sächsische Zeitung
date: 1977
algebraic: 
  white: [Kb7, Rc4, Rb3, Pa2]
  black: [Ka4, Bg1, Pb4]
stipulation: "#4"
solution: |
  "1.Rc4*b4 + ! 
        1...Ka4-a5 
            2.Rb4-b5 + 
                2...Ka5-a4 
                    3.Kb7-a6 threat:
                            4.Rb5-b4 # 
                            4.Rb5-a5 # 
                        3...Bg1-b6 
                            4.Rb5-b4 # 
                        3...Bg1-c5 
                            4.Rb5-a5 #"
comments: 
  - ver. V. K.