authors: 
  - Bennecke, L
  - Bennecke, Ludwig
source: International Chess Magazine
date: 1885
algebraic: 
  white: [Kf2, Qd2, Bg4, Sd3, Ph4, Pb2]
  black: [Ke4, Rf6, Rc7, Pg6, Pf3, Pe7, Pe5, Pb3]
stipulation: "#4"
solution: |
  "1.Bg4-d7 ! threat:
            2.Sd3-c5 + 
                2...Rc7*c5 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 # 
            2.Qd2-e3 + 
                2...Ke4-d5 
                    3.Qe3*e5 + 
                        3...Kd5-c4 
                            4.Bd7-b5 # 
                            4.Qe5-e4 # 
        1...Ke4-d4 
            2.Sd3-f4 + 
                2...Kd4-c5 
                    3.Qd2-a5 + 
                        3...Kc5-d6 
                            4.Qa5-d5 # 
                        3...Kc5-c4 
                            4.Qa5-c3 # 
                        3...Kc5-d4 
                            4.Qa5-d5 # 
                2...Kd4-e4 
                    3.Qd2-e3 # 
                2...Kd4-c4 
                    3.Qd2-c3 # 
            2.Qd2-e3 + 
                2...Kd4-d5 
                    3.Qe3*e5 + 
                        3...Kd5-c4 
                            4.Bd7-b5 # 
                            4.Qe5-e4 # 
                2...Kd4-c4 
                    3.Qe3-e4 # 
        1...Ke4-d5 
            2.Sd3-f4 + 
                2...Kd5-c4 
                    3.Qd2-c3 # 
                2...Kd5-c5 
                    3.Qd2-a5 + 
                        3...Kc5-d6 
                            4.Qa5-d5 # 
                        3...Kc5-c4 
                            4.Qa5-c3 # 
                        3...Kc5-d4 
                            4.Qa5-d5 # 
                2...Kd5-e4 
                    3.Qd2-e3 # 
        1...Rf6-f4 
            2.Bd7-e6 threat:
                    3.Qd2-e3 # 
                2...Rc7-c2 
                    3.Sd3-c5 + 
                        3...Rc2*c5 
                            4.Qd2-e3 # 
            2.Qd2-e3 + 
                2...Ke4-d5 
                    3.Qe3*e5 + 
                        3...Kd5-c4 
                            4.Bd7-b5 # 
        1...Rf6-f5 
            2.Bd7-e6 threat:
                    3.Qd2-e3 # 
                2...Rc7-c2 
                    3.Sd3-c5 + 
                        3...Rc2*c5 
                            4.Qd2-e3 # 
            2.Sd3-c5 + 
                2...Rc7*c5 
                    3.Bd7-e6 threat:
                            4.Qd2-e3 # 
                        3...Rc5-c2 
                            4.Be6-d5 # 
                        3...Rc5-c3 
                            4.Be6-d5 # 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 # 
            2.Sd3-b4 threat:
                    3.Qd2-e3 # 
                2...Rc7-c2 
                    3.Bd7-c6 + 
                        3...Rc2*c6 
                            4.Qd2-e3 # 
                2...Rc7-c3 
                    3.Bd7-c6 + 
                        3...Rc3*c6 
                            4.Qd2-e3 # 
                    3.Qd2*c3 threat:
                            4.Qc3-c4 # 
                            4.Qc3-e3 # 
                        3...Ke4-f4 
                            4.Qc3*f3 # 
                    3.b2*c3 threat:
                            4.Bd7-c6 # 
                            4.Qd2-e3 # 
                        3...Rf5-f4 
                            4.Qd2-e1 # 
                            4.Qd2-e3 # 
                            4.Qd2-d5 # 
                            4.Qd2-d3 # 
                        3...Rf5-f8 
                            4.Qd2-e3 # 
                        3...Rf5-f7 
                            4.Qd2-e3 # 
                        3...Rf5-f6 
                            4.Qd2-e3 # 
                        3...Rf5-h5 
                            4.Qd2-e3 # 
                        3...Rf5-g5 
                            4.Qd2-e3 # 
        1...Rf6-c6 
            2.Sd3-c5 + 
                2...Rc6*c5 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 # 
        1...Rf6-e6 
            2.Bd7*e6 threat:
                    3.Qd2-e3 # 
                2...Rc7-c2 
                    3.Sd3-c5 + 
                        3...Rc2*c5 
                            4.Qd2-e3 # 
            2.Sd3-c5 + 
                2...Ke4-f5 
                    3.Qd2-g5 # 
                2...Rc7*c5 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 # 
                        3...Ke4-f5 
                            4.Qe3*f3 # 
        1...Rc7-c2 
            2.Sd3-c5 + 
                2...Rc2*c5 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 # 
        1...Rc7-c6 
            2.Sd3-c5 + 
                2...Rc6*c5 
                    3.Qd2-e3 + 
                        3...Ke4-d5 
                            4.Qe3-d3 #"