MESON Chess Problem Database

Problem Display
PID: 183725 (3r3k/P5p1/R2p2K1/8/8/8/8/8 w - - 0 1)

Miloseski, Irina

Kudesnik, 2018

3r3k/P5p1/R2p2K1/8/8/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.axb8Q#
      • 2.axb8R#
  • Tries
    • 1.a8R?
      • threat
        • 2.Rxd8#
      • 1...Kg8
        • 2.Rxd8#
      • 1...Rxa8
        • 2.Rxa8#
      • 1...Rb8
        • 2.Rxb8#
      • 1...Rc8
        • 2.Rxc8#
      • 1...Re8
        • 2.Rxe8#
      • 1...Rf8
        • 2.Rxf8#
      • 1...Rg8!
  • Keys
    • 1.a8Q!
      • threat
        • 2.Qxd8#
      • 1...Kg8
        • 2.Qxd8#
      • 1...Rxa8
        • 2.Rxa8#
      • 1...Rb8
        • 2.Qxb8#
      • 1...Rc8
        • 2.Qxc8#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf8
        • 2.Qxf8#
      • 1...Rg8
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::PXR(c)=Q
  • Tries
    • Try
      • P(C);P_PINR(c)
      • Threat
        • R(C),XR(c)
      • Vars
        • K(d);P-FLIGHT::R(C),XR(c)
        • R(c);N_SPINR(c),OGATE,XR(C)::R(A),XR(c)
        • R(c);OGATEB::R(C),XR(c)
        • R(c);OGATE::R(C),XR(c)
      • Refutation
        • R(c);
  • Actual
    • P(C);P_PINR(c)
    • Threat
      • QAR(C),XR(c)
    • Vars
      • K(d);P-FLIGHT::QAR(C),XR(c)
      • R(c);N_SPINR(c),OGATE,XQ(C)::R(A),XR(c)
      • R(c);OGATEB::QAR(C),XR(c)
      • R(c);OGATE::QAR(C),XR(c)
      • R(c);OGATE::QAR2(C),XR(c)
      • R(c);SBLOCK::QAB(C)
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