Problem Display
PID: 231675 (8/8/3p4/Qn1Nk3/5N2/5p2/B4P2/7K w - - 0 1)

Pierce, James

English Mechanic and World of Science, 1879

(First published on Fri Dec 26 1879)

8/8/3p4/Qn1Nk3/5N2/5p2/B4P2/7K

#3

6 + 4


15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Bb1?
      • threat
        • 2.Qd2
          • threat
            • 3.Qe3#
          • 2...Sc3
            • 3.Qxc3#
      • 1...Kd4
        • 2.Qb4+
          • 2...Ke5
            • 3.Qe4#
        • 2.Qb6+
          • 2...Kc4
            • 3.Ba2#
          • 2...Ke5
            • 3.Qe3#
        • 2.Qxb5
          • 2...Ke5
            • 3.Qb2#
      • 1...Sd4!
    • 1.Qe1+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
    • 1.Qxb5?
      • 1...Kd4
        • 2.Bb1
          • 2...Ke5
            • 3.Qb2#
        • 2.Qe8
          • 2...Kc5
            • 3.Se6#
        • 2.Qb2+
          • 2...Ke4
            • 3.Bb1#
          • 2...Kc5
            • 3.Qb6#
      • 1...Kf5
        • 2.Qe8
          • 2...Kg4
            • 3.Qh5#
          • 2...Kg5
            • 3.Qh5#
      • 1...Ke4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qf6+
          • 2...Ke4
            • 3.Bb1#
      • 1...Kd4
        • 2.Qe8
          • threat
            • 3.Qe3#
          • 2...Kc5
            • 3.Se6#
      • 1...Ke4
        • 2.Qf6
          • threat
            • 3.Bb1#
          • 2...Sa3
            • 3.Sc3#
          • 2...Sc3
            • 3.Sxc3#
          • 2...Sd4
            • 3.Sc3#
      • 1...Kf5
        • 2.Qf6+
          • 2...Ke4
            • 3.Bb1#
          • 2...Kg4
            • 3.Se3#
      • 1...Sd4
        • 2.Qf6+
          • 2...Ke4
            • 3.Sc3#
      • 1...Sa3
        • 2.Qf6+
          • 2...Ke4
            • 3.Sc3#
      • 1...Sc3
        • 2.Qf6+
          • 2...Ke4
            • 3.Sxc3#
      • 1...Sa7
        • 2.Qf6+
          • 2...Ke4
            • 3.Sc3#
            • 3.Bb1#
      • 1...Sc7
        • 2.Qf6+
          • 2...Ke4
            • 3.Sc3#
            • 3.Bb1#

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