MESON Chess Problem Database

Problem Display
PID: 185055 (8/8/6R1/6B1/3k4/K2P4/8/3QN3 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Basler Nachrichten, 1935

(First published on Sat Feb 23 1935)

8/8/6R1/6B1/3k4/K2P4/8/3QN3

#2

6 + 1

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Bf6#
      • 2.Qa1#
  • Tries
    • 1.Be3+?
      • 1...Kc3
        • 2.Rc6#
        • 2.Qc2#
        • 2.Qb3#
        • 2.Qa1#
        • 2.Qc1#
        • 2.Qd2#
      • 1...Kd5
        • 2.Qh5#
      • 1...Ke5
        • 2.Qh5#
      • 1...Kxe3!
    • 1.Qc2?
      • 1...Ke5
        • 2.Qc5#
      • 1...Kd5!
    • 1.Qe2?
      • 1...Kc3
        • 2.Bf6#
        • 2.Qb2#
        • 2.Qe5#
      • 1...Kc5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Qb3?
      • 1...Kc5
        • 2.Be3#
        • 2.Qc4#
      • 1...Ke5!
    • 1.Qf3?
      • 1...Kc3
        • 2.Qf6#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qa4+?
      • 1...Kc3
        • 2.Rc6#
        • 2.Qb4#
        • 2.Qc4#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kd5!
    • 1.Qg4+?
      • 1...Kc3
        • 2.Rc6#
        • 2.Qb4#
        • 2.Qc4#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kd5!
    • 1.Qa1+?
      • 1...Kc5
        • 2.Qe5#
      • 1...Kd5!
    • 1.Qc1?
      • 1...Ke5
        • 2.Qc5#
      • 1...Kd5!
  • Keys
    • 1.Qh5!
      • 1...Kc3
        • 2.Qh8#
      • 1...Kc5
        • 2.Be3#
      • 1...Kd5
        • 2.Be3#
      • 1...Ke5
        • 2.Be3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(A)
        • K(a);S_FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT,XB(E)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::QAR(A)+B(E),DCHECK
      • K(a);P-FLIGHT::QAR(A)+B(E)
      • K(a);S_FLIGHT::QAR(A)+B(E)
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