MESON Chess Problem Database

Problem Display
PID: 156910 (1k2r3/4P2Q/1K1P4/8/6B1/8/8/8 w - - 0 1)

Abdullayev, Suleyman

Kudesnik, 2015

1k2r3/4P2Q/1K1P4/8/6B1/8/8/8

#2

5 + 2

5454 Near Snap 2016
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.exd8Q#
      • 2.exd8R#
    • 1...Rf8
      • 2.exf8Q#
      • 2.exf8R#
    • 1...Rg8
      • 2.Qxg8#
    • 1...Rh8
      • 2.Qxh8#
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qxe8#
      • 1...Ka8
        • 2.Qxe8#
      • 1...Rc8
        • 2.Qxc8#
      • 1...Rd8
        • 2.Qxd8#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Rf8
        • 2.Qxf8#
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Rxg8!
    • 1.Qh8?
      • threat
        • 2.Qxe8#
      • 1...Ka8
        • 2.Qxe8#
      • 1...Rg8
        • 2.Qxg8#
      • 1...Rc8
        • 2.Qxc8#
      • 1...Rd8
        • 2.Qxd8#
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Rf8
        • 2.Qxf8#
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Rxh8!
  • Keys
    • 1.d7!
      • threat
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Ka8
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Rxe7
        • 2.d8Q#
        • 2.d8R#
      • 1...Rg8
        • 2.Qxg8#
      • 1...Rc8
        • 2.dxc8Q#
        • 2.dxc8R#
      • 1...Rd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Rf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Rh8
        • 2.Qxh8#

Anticipated by 146323(2012)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE::PXR(b)=Q
    • R(b);OGATEB::QAR(E),XR(b)
  • Tries
    • Try
      • Q(E);P_PINR(b)
      • Threat
        • QAR(E),XR(b)
      • Vars
        • K(a);P-FLIGHT::QAR(E),XR(b)
        • R(b);OGATE::QAR1(E),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XQ(E)
    • Try
      • Q(E);P_PINR(b)
      • Threat
        • QAR(E),XR(b)
      • Vars
        • K(a);P-FLIGHT::QAR(E),XR(b)
        • R(b);OGATEB::QAR(E),XR(b)
        • R(b);OGATE::QAR1(E),XR(b)
      • Refutation
        • R(b);N_SPINR(b),XQ(E)
  • Actual
    • P(C);
    • Threat
      • PXR(b)=Q
    • Vars
      • K(a);P-FLIGHT::PXR(b)=Q
      • R(b);N_GUARD,XP(D)::P=Q
      • R(b);OGATEB::QAR(E),XR(b)
      • R(b);OGATE::PXR(b)=Q
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