MESON Chess Problem Database

Problem Display
PID: 276717 (8/k2P4/8/K7/4Q3/8/8/8 w - - 0 1)

Sikdar, Niharendu

Seven is the Limit, 1989

8/k2P4/8/K7/4Q3/8/8/8

#2

3 + 1

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Qh7?
      • threat
        • 2.d8Q#
        • 2.d8R#
      • 1...Ka8
        • 2.d8Q#
        • 2.d8R#
      • 1...Kb8
        • 2.d8Q#
        • 2.d8R#
      • 1...Kb7!
    • 1.Qe7?
      • threat
        • 2.d8Q#
        • 2.d8R#
      • 1...Ka8
        • 2.d8Q#
        • 2.d8R#
      • 1...Kb8
        • 2.d8Q#
        • 2.d8R#
      • 1...Kb7!
  • Keys
    • 1.d8S!
      • 1...Kb8
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • P=Q
      • Vars
        • K(a);P-FLIGHT::P=Q
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • P=Q
      • Vars
        • K(a);P-FLIGHT::P=Q
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
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