Problem Display
PID: 196285 (1n6/4p1K1/2pP3n/rp2kp2/3R4/2B4b/5PB1/8 w - - 0 1)

Andrade, Barry Jack da Costa

The Observer, 1943

(First published on Sun Apr 25 1943)

1n6/4p1K1/2pP3n/rp2kp2/3R4/2B4b/5PB1/8

#3

6 + 9


15239 Valois Notebooks 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Sf7
      • 2.Kxf7
        • threat
          • 3.f4#
        • 2...f4
          • 3.Rd5#
    • 1...e6
      • 2.f4#
  • Tries
    • 1.dxe7?
      • threat
        • 2.e8Q#
        • 2.e8R#
      • 1...f4
        • 2.Rd5+
          • 2...Ke6
            • 3.e8Q#
            • 3.e8R#
      • 1...Sg8
        • 2.e8Q+
          • 2...Se7
            • 3.Qxe7#
        • 2.e8R+
          • 2...Se7
            • 3.Rxe7#
      • 1...Ra7!
  • Keys
    • 1.d7!
      • threat
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
        • 2.d8S
          • threat
            • 3.f4#
          • 2...f4
            • 3.Rd5#
      • 1...Ke6
        • 2.d8S+
          • 2...Ke5
            • 3.f4#
      • 1...Bxg2
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Sxd7
        • 2.Rc4+
          • 2...Kd6
            • 3.Rxc6#
          • 2...Ke6
            • 3.Rxc6#
      • 1...f4
        • 2.Rd5+
          • 2...Ke6
            • 3.d8S#
      • 1...Ra1
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Ra2
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Ra3
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Ra4
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Ra7
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Bg4
        • 2.Rd5+
          • 2...Kf4
            • 3.Bd2#
          • 2...Ke6
            • 3.d8S#
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Sg4
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...Sf7
        • 2.Kxf7
          • threat
            • 3.f4#
          • 2...f4
            • 3.Rd5#
      • 1...b4
        • 2.f4+
          • 2...Ke6
            • 3.d8S#
      • 1...c5
        • 2.f4+
          • 2...Ke6
            • 3.d8S#

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