MESON Chess Problem Database

Problem Display
PID: 153267 (8/8/7p/4P2Q/8/3K2p1/7B/7k w - - 0 1)

Harley, Brian

The Observer, 1938

(First published on Sun Sep 18 1938)

8/8/7p/4P2Q/8/3K2p1/7B/7k

#3

4 + 3

15290 Harley Scrapbook 2014
15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.Bg3+
        • 2...Kg1
          • 3.Qd1#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Bxg3+
          • 2...Kg1
            • 3.Qh2#
          • 2...Kg2
            • 3.Qh2#
      • 1...gxh2
        • 2.Qf3+
          • 2...Kg1
            • 3.Qf1#
        • 2.Qh3
          • threat
            • 3.Qf1#
          • 2...Kg1
            • 3.Qf1#
      • 1...g2
        • 2.Kf2
          • threat
            • 3.Bg1#
            • 3.Bg3#
            • 3.Bf4#
          • 2...g1Q+
            • 3.Bxg1#
          • 2...g1B+
            • 3.Bxg1#
          • 2...g1S
            • 3.Bxg1#
        • 2.Bg3+
          • 2...Kg1
            • 3.Bf2#
            • 3.Qh2#
        • 2.Bf4+
          • 2...Kg1
            • 3.Be3#
            • 3.Qh2#
      • 1...Kg2!
    • 1.Bg1+?
      • 1...Kg2
        • 2.Be3
          • 2...Kf1
            • 3.Qe2#
            • 3.Qh1#
        • 2.Bd4
          • 2...Kf1
            • 3.Qe2#
            • 3.Qh1#
        • 2.Bc5
          • 2...Kf1
            • 3.Qe2#
            • 3.Qh1#
        • 2.Bb6
          • 2...Kf1
            • 3.Qe2#
            • 3.Qh1#
        • 2.Ba7
          • 2...Kf1
            • 3.Qe2#
            • 3.Qh1#
      • 1...Kxg1!
    • 1.Bxg3+?
      • 1...Kg1
        • 2.Ke2
          • 2...Kg2
            • 3.Qh2#
        • 2.Qh2+
          • 2...Kf1
            • 3.Qh1#
            • 3.Qf2#
      • 1...Kg2!
    • 1.Qd1+?
      • 1...Kg2
        • 2.Qg1+
          • 2...Kf3
            • 3.Qxg3#
          • 2...Kh3
            • 3.Qxg3#
      • 1...Kxh2!
    • 1.Qh3?
      • threat
        • 2.Qxg3
          • 2...h5
            • 3.Qg1#
      • 1...h5
        • 2.Qxg3
          • 2...h4
            • 3.Qg1#
      • 1...g2!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qxg3
          • 2...h5
            • 3.Qg1#
      • 1...Kg2
        • 2.Qxg3+
          • 2...Kf1
            • 3.Qg1#
          • 2...Kh1
            • 3.Qg1#
      • 1...gxh2
        • 2.Qf2
          • 2...h5
            • 3.Qf1#
      • 1...g2
        • 2.Bf4+
          • 2...Kg1
            • 3.Qe1#
      • 1...h5
        • 2.Qxg3
          • 2...h4
            • 3.Qg1#

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