MESON Chess Problem Database

Problem Display
PID: 28733 (3K4/3B4/8/3k4/8/6Np/1Q4P1/8 w - - 0 1)

Anstey, Charles Thomas T

St. John Globe, 1906

3K4/3B4/8/3k4/8/6Np/1Q4P1/8

#2

5 + 2

3248 Miniatures canadiennes 2000
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd4#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd4#
      • 1...Kc5
        • 2.Qd4#
        • 2.Qb5#
      • 1...Kc4!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Se4#
        • 2.Sf5#
      • 1...Kd4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Qd4#
      • 1...Kc5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qd4#

This anticipates 182347(1906)

This is a version of 28902

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);P-FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::QAR2(A)
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