MESON Chess Problem Database

Problem Display
PID: 217869 (8/8/8/8/2K5/3NQ3/8/3k4 w - - 0 1)

Burchard, Friedrich

Deutsche Schachzeitung, 1968

8/8/8/8/2K5/3NQ3/8/3k4

#2

3 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc2
      • 2.Qc1#
  • Tries
    • 1.Qf4?
      • 1...Kc2
        • 2.Qc1#
      • 1...Ke2!
    • 1.Qg5?
      • 1...Kc2
        • 2.Qc1#
      • 1...Ke2!
    • 1.Qh6?
      • 1...Kc2
        • 2.Qc1#
      • 1...Ke2!
  • Keys
    • 1.Qe1+!
      • 1...Kc2
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);CHECK
    • Vars
      • K(a);OGATE,S_FLIGHT::QAR1(B)
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