MESON Chess Problem Database

Problem Display
PID: 231144 (R7/3k3b/N7/8/2BK4/2Q5/8/8 w - - 0 1)

Wilson, MT

Chess Amateur (The), 1927

R7/3k3b/N7/8/2BK4/2Q5/8/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Ba2?
      • threat
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc7#
      • 1...Ke7!
    • 1.Bb3?
      • threat
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc7#
      • 1...Ke7!
    • 1.Bd5?
      • threat
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc7#
      • 1...Ke7!
    • 1.Bf7?
      • threat
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc7#
      • 1...Ke7!
    • 1.Qg3?
      • threat
        • 2.Qc7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ke7!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qc7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc7#
      • 1...Ke7
        • 2.Qd8#

FEATURES

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