MESON Chess Problem Database

Problem Display
PID: 217446 (3QB3/8/K5N1/8/4k3/8/2R2P2/8 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Deutsche Schachzeitung, 1935

3QB3/8/K5N1/8/4k3/8/2R2P2/8

#2

6 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6?
      • 1...Kd5
        • 2.Bc6#
        • 2.Qe5#
      • 1...Kd3!
    • 1.Qc8?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kd5!
  • Keys
    • 1.Bd7!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd4
        • 2.Bf5#
        • 2.Bc6#
      • 1...Kd5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • K(a);S_FLIGHT::B(F)
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT::QAR(E)+B(F),DCHECK
      • K(a);S_FLIGHT::QAB(E)
      • K(a);S_FLIGHT::QAR(E)+B(F)
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