MESON Chess Problem Database

Problem Display
PID: 189440 (1K6/1B6/8/k7/8/8/2Q5/8 w - - 0 1)

Link, Otto

La Strategie, 1911

1K6/1B6/8/k7/8/8/2Q5/8

#2

3 + 1

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4+?
      • 1...Kb6
        • 2.Qb4#
      • 1...Kxa4!
    • 1.Qe4?
      • 1...Kb6
        • 2.Qb4#
      • 1...Kb5!
    • 1.Qc3+?
      • 1...Ka4
        • 2.Bc6#
      • 1...Kb6
        • 2.Qb4#
      • 1...Kb5!
  • Keys
    • 1.Qc4!
      • 1...Kb6
        • 2.Qb4#

FEATURES

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