Problem Display
PID: 224341 (6br/B3N2R/2prp1Pp/8/p2p4/K2Bk3/6P1/4N2Q w - - 0 1)

Anonymous

English Mechanic and World of Science, 1877

(First published on Fri Oct 19 1877)

6br/B3N2R/2prp1Pp/8/p2p4/K2Bk3/6P1/4N2Q

#3

9 + 9


15239 Valois Notebooks 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qxh6+
        • 2...Kg3
          • 3.Qh4#
        • 2...Kg4
          • 3.Qh4#
        • 2...Ke5
          • 3.Qg5#
  • Tries
    • 1.Qh2?
      • threat
        • 2.g3
          • threat
            • 3.Qe2#
      • 1...Kf2
        • 2.g3+
          • 2...Kxe1
            • 3.Qe2#
          • 2...Ke3
            • 3.Qe2#
      • 1...e5
        • 2.g3
          • threat
            • 3.Sf5#
            • 3.Qe2#
      • 1...Kd2!
    • 1.g3?
      • threat
        • 2.Qg2
          • threat
            • 3.Qe2#
        • 2.Qh2
          • threat
            • 3.Qe2#
      • 1...Kf2
        • 2.Qg2+
          • 2...Kxe1
            • 3.Qe2#
          • 2...Ke3
            • 3.Qe2#
        • 2.Qf3+
          • 2...Kxe1
            • 3.Qe2#
          • 2...Kg1
            • 3.Qg2#
        • 2.Qh2+
          • 2...Kxe1
            • 3.Qe2#
          • 2...Ke3
            • 3.Qe2#
      • 1...e5
        • 2.Qg2
          • threat
            • 3.Sf5#
            • 3.Qe2#
        • 2.Qh2
          • threat
            • 3.Sf5#
            • 3.Qe2#
      • 1...Kd2!
  • Keys
    • 1.Bb1!
      • threat
        • 2.Sd3
          • threat
            • 3.Qe1#
          • 2...Kd2
            • 3.Qe1#
          • 2...Ke2
            • 3.Qe1#
          • 2...Ke4
            • 3.Qe1#
      • 1...Kd2
        • 2.Sd3
          • threat
            • 3.Qe1#
          • 2...Ke2
            • 3.Qe1#
          • 2...Kc3
            • 3.Qc1#
          • 2...Ke3
            • 3.Qe1#
      • 1...Ke2
        • 2.Sd3
          • threat
            • 3.Qe1#
          • 2...Kd2
            • 3.Qe1#
          • 2...Ke3
            • 3.Qe1#
      • 1...Kf2
        • 2.Sd3+
          • 2...Ke2
            • 3.Qe1#
          • 2...Ke3
            • 3.Qe1#
          • 2...Kg3
            • 3.Qh3#
      • 1...Kf4
        • 2.Qxh6+
          • 2...Kg3
            • 3.Qh4#
          • 2...Kg4
            • 3.Qh4#
          • 2...Ke5
            • 3.Qg5#

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