MESON Chess Problem Database

Problem Display
PID: 182232 (8/2QB1k1K/8/8/8/8/8/8 w - - 0 1)

Spencer, George Burt

St. Paul's Dispatch, 1906

8/2QB1k1K/8/8/8/8/8/8

#2

3 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qg7#
      • 1...Kf6
        • 2.Qg7#
      • 1...Kf8
        • 2.Qg7#
      • 1...Ke7!
    • 1.Qb6?
      • 1...Kf8
        • 2.Qf6#
      • 1...Ke7!
    • 1.Qc3?
      • threat
        • 2.Qg7#
      • 1...Kf8
        • 2.Qf6#
        • 2.Qg7#
      • 1...Ke7!
    • 1.Qc6?
      • 1...Kf8
        • 2.Qf6#
      • 1...Ke7!
  • Keys
    • 1.Qe5!
      • 1...Kf8
        • 2.Qf6#
        • 2.Qg7#
        • 2.Qe8#

There are these versions: 182234

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
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