MESON Chess Problem Database

Problem Display
PID: 120762 (K3k1r1/1R4rR/8/8/8/Q7/8/8 w - - 0 1)

Vogel, Peter

Source?, 0000

K3k1r1/1R4rR/8/8/8/Q7/8/8

#2

4 + 3

3713 Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Rb8#
      • 2.Qe7#
    • 1...Rg2
      • 2.Rb8#
      • 2.Qe7#
    • 1...Rg3
      • 2.Rb8#
      • 2.Qe7#
    • 1...Rg4
      • 2.Rb8#
      • 2.Qe7#
    • 1...Rg5
      • 2.Rb8#
      • 2.Qe7#
    • 1...Rg6
      • 2.Rb8#
      • 2.Qe7#
    • 1...Re7
      • 2.Qxe7#
  • Tries
    • 1.Rbxg7?
      • threat
        • 2.Rxg8#
        • 2.Qe7#
      • 1...Kd8
        • 2.Rxg8#
      • 1...Rf8
        • 2.Qe7#
      • 1...Rh8
        • 2.Rxh8#
        • 2.Qe7#
      • 1...Rxg7!
    • 1.Rhxg7?
      • threat
        • 2.Rb8#
        • 2.Rxg8#
        • 2.Qe7#
      • 1...Kd8
        • 2.Rb8#
        • 2.Rxg8#
      • 1...Rf8
        • 2.Rb8#
        • 2.Qe7#
      • 1...Rh8
        • 2.Rb8#
        • 2.Qe7#
      • 1...Rxg7!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Kf8
        • 2.Qb8#
      • 1...Rxg3
        • 2.Rb8#
      • 1...Rxb7
        • 2.Qxg8#
      • 1...Rc7
        • 2.Qxg8#
      • 1...Rd7
        • 2.Qxg8#

Anticipated by 120996(0000)

This anticipates 17018(1945)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::QAR1(A),XR(a)
  • Tries
    • Try
      • R(B);XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::R(B),XR(c)
        • R(c);::QAR1(A)
      • Refutation
        • R(c);XR(B)
    • Try
      • R(C);XR(a)
      • Threat
        • DUALS(3)
      • Refutation
        • R(c);XR(C)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);P-FLIGHT::QAR(A)
      • R(a);XQ(A)::R(B)
      • R(a);OGATE,XR(B)::QAR2(A),XR(c)
      • R(a);OGATE::QAR2(A),XR(c)
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