MESON Chess Problem Database

Problem Display
PID: 176017 (4k2r/8/4K2p/8/8/8/8/4Q3 w k - 0 1)

Speckmann, Werner

Problemnoter, 1961

4k2r/8/4K2p/8/8/8/8/4Q3

#2

2 + 3

102 Probleemblad 1978

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Kf8!
    • 1.Qe5?
      • threat
        • 2.Qb8#
        • 2.Qxh8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...Rh7
        • 2.Qb8#
      • 1...Rf8
        • 2.Qb8#
      • 1...Rg8
        • 2.Qb8#
      • 1...0-0!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qe7#
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...Rh7
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • K(b);P-FLIGHT::QAR2(A),XR(c)
        • R(c);::QAR(A)
        • R(c);SBLOCK::QAR(A)
      • Refutation
        • K(b);0-0
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • R(c);::QAR(A)
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