Problem Display
PID: 52341 (3N3R/p5p1/1n3pk1/2p4N/2p2K1P/2P1p3/R3P3/8 w - - 0 1)

Copping, Peter F

The Problemist, 1960

3N3R/p5p1/1n3pk1/2p4N/2p2K1P/2P1p3/R3P3/8

#3

8 + 8


136 Problem Observer 2004

SOLUTION


  • SOUND
  • Sets
    • 1...Sa4
      • 2.Ra1
        • threat
          • 3.Rg1#
    • 1...Sa8
      • 2.Ra1
        • threat
          • 3.Rg1#
    • 1...Sc8
      • 2.Ra1
        • threat
          • 3.Rg1#
  • Tries
    • 1.Kg4?
      • threat
        • 2.Sf4#
      • 1...Sd5
        • 2.Ra6
          • 2...Sxc3
            • 3.Sf4#
          • 2...Sb4
            • 3.Sf4#
          • 2...Sf4
            • 3.Sxf4#
          • 2...Sb6
            • 3.Sf4#
          • 2...Sc7
            • 3.Sf4#
          • 2...Se7
            • 3.Sf4#
      • 1...f5+!
    • 1.Rxa7?
      • threat
        • 2.Rxg7#
      • 1...Sd7
        • 2.Rxd7
          • 2...f5
            • 3.Rd6#
            • 3.Rxg7#
      • 1...Sd5+!
  • Keys
    • 1.Ra6!
      • 1...Sd5+
        • 2.Kg4
          • 2...Sxc3
            • 3.Sf4#
          • 2...Sb4
            • 3.Sf4#
          • 2...Sf4
            • 3.Sxf4#
          • 2...Sb6
            • 3.Sf4#
          • 2...Sc7
            • 3.Sf4#
          • 2...Se7
            • 3.Sf4#
      • 1...Sd7
        • 2.Ke4
          • threat
            • 3.Sf4#
        • 2.Sg3
          • threat
            • 3.h5#
      • 1...Sa4
        • 2.Kg4
          • threat
            • 3.Sf4#
        • 2.Sg3
          • threat
            • 3.h5#
        • 2.Rxa7
          • threat
            • 3.Rxg7#
      • 1...Sa8
        • 2.Ke4
          • threat
            • 3.Sf4#
        • 2.Kg4
          • threat
            • 3.Sf4#
        • 2.Sg3
          • threat
            • 3.h5#
        • 2.Ra1
          • threat
            • 3.Rg1#
      • 1...Sc8
        • 2.Kg4
          • threat
            • 3.Sf4#
        • 2.Sg3
          • threat
            • 3.h5#
        • 2.Ra1
          • threat
            • 3.Rg1#
      • 1...f5
        • 2.Ke5
          • 2...f4
            • 3.Sxf4#

FEATURES


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