MESON Chess Problem Database

Problem Display
PID: 219636 (8/8/8/8/8/Q2K4/1N6/1k6 w - - 0 1)

Fabel, Karl

Maleika, Gerhard

Deutsche Schachzeitung, 1968

8/8/8/8/8/Q2K4/1N6/1k6

#2

3 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Qa1#
  • Tries
    • 1.Qa2+?
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxa2!
    • 1.Qb3?
      • 1...Kc1
        • 2.Qc2#
      • 1...Ka1!
    • 1.Qa4?
      • 1...Kc1
        • 2.Qc2#
        • 2.Qa1#
      • 1...Kxb2!
    • 1.Qa5?
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxb2!
    • 1.Qa6?
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxb2!
    • 1.Qa7?
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxb2!
    • 1.Qa8?
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxb2!
  • Keys
    • 1.Kc3!
      • 1...Kc1
        • 2.Qa1#

FEATURES

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