MESON Chess Problem Database

Problem Display
PID: 1972 (8/4Q3/1k6/8/2K2B2/8/8/8 w - - 0 1)

Evans, Captain William Davies

The Chess Player's Chronicle (Staunton), 1865

8/4Q3/1k6/8/2K2B2/8/8/8

#2

3 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qa7#
    • 1...Kc6
      • 2.Qc7#
  • Tries
    • 1.Bh2?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Be3+?
      • 1...Ka5
        • 2.Qa3#
        • 2.Qa7#
      • 1...Ka6
        • 2.Qa7#
      • 1...Kc6!
    • 1.Bg3?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Be5?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Bd6?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Qa7+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxa7!
    • 1.Qb7+?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa7#
      • 1...Kxb7!
    • 1.Qd7?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa7#
      • 1...Ka6!
    • 1.Qf7?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Qg7?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
    • 1.Qh7?
      • 1...Ka5
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#
      • 1...Ka6!
  • Keys
    • 1.Bb8!
      • 1...Ka5
        • 2.Qa7#
      • 1...Ka6
        • 2.Qa7#
      • 1...Kc6
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(C)
    • K(a);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::QAR1(C)
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