Problem Display
PID: 279007 (4BN2/1K6/1P6/kPN1p3/1pQ1ppn1/p2p3p/8/1r6 w - - 0 1)

Derevchuk, Oleksandr Andrijovich

Problemist Ukraini, 2024

4BN2/1K6/1P6/kPN1p3/1pQ1ppn1/p2p3p/8/1r6

#3

7 + 10


3713 Snap 2024

SOLUTION


  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Rd1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Re1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Rf1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Rg1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Rh1
      • 2.Qb3
        • threat
          • 3.Qa4#
    • 1...Rb3
      • 2.Qxb3
        • threat
          • 3.Qa4#
    • 1...a2
      • 2.Qxa2#
    • 1...b3
      • 2.Qc3#
      • 2.Qa4#
  • Tries
    • 1.Sb3+?
      • 1...Rxb3
        • 2.Qc8
          • threat
            • 3.Qa8#
          • 2...Ka4
            • 3.Qa8#
      • 1...Ka4!
    • 1.Sfe6?
      • threat
        • 2.Sd8
          • threat
            • 3.Sc6#
      • 1...Rc1
        • 2.Sb3+
          • 2...Ka4
            • 3.Sec5#
      • 1...Se3!
    • 1.Sg6?
      • threat
        • 2.Se7
          • threat
            • 3.Sc6#
      • 1...Se3
        • 2.Sxe5
          • threat
            • 3.Sc6#
          • 2...Sxc4
            • 3.Sxc4#
      • 1...Rc1!
    • 1.Qc2?
      • threat
        • 2.Qa4#
      • 1...Rb3
        • 2.Qxb3
          • threat
            • 3.Qa4#
      • 1...dxc2!
  • Keys
    • 1.Sfd7!
      • threat
        • 2.Sb8
          • threat
            • 3.Sc6#
      • 1...Rc1
        • 2.Sb3+
          • 2...Ka4
            • 3.Sdc5#
      • 1...Se3
        • 2.Sxe5
          • threat
            • 3.Sc6#
          • 2...Sxc4
            • 3.Sxc4#
      • 1...a2
        • 2.Sxe5
          • threat
            • 3.Sc6#
            • 3.Qxa2#
        • 2.Sb8
          • threat
            • 3.Sc6#
            • 3.Qxa2#
        • 2.Qxa2+
          • 2...Kxb5
            • 3.Qa6#

Anticipated by 163049(2013)

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