MESON Chess Problem Database

Problem Display
PID: 182237 (8/7K/7N/7k/7n/7N/8/7Q w - - 0 1)

Spencer, George Burt

St. Paul's Dispatch, 1906

8/7K/7N/7k/7n/7N/8/7Q

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2?
      • threat
        • 2.Sf4#
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sf3
        • 2.Qg4#
      • 1...Sf5
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sg6
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sxg2!
    • 1.Qg1?
      • threat
        • 2.Sf4#
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sf3
        • 2.Qg4#
      • 1...Sf5
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sg6
        • 2.Qg4#
        • 2.Qg5#
      • 1...Sg2!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::QAB1(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::QAB1(A)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
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