MESON Chess Problem Database

Problem Display
PID: 228732 (4k3/8/2P3K1/6Q1/8/8/8/8 w - - 0 1)

Latzel, Gerhard Paul

1981 dans Aryakov, 1968

4k3/8/2P3K1/6Q1/8/8/8/8

#2

3 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qd8#
  • Tries
    • 1.Qd2?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke7!
    • 1.Qa5?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke7!
    • 1.Qd5?
      • 1...Kf8
        • 2.Qf7#
        • 2.Qd8#
      • 1...Ke7!
    • 1.Qf5?
      • 1...Kd8
        • 2.Qd7#
      • 1...Ke7!
    • 1.c7?
      • threat
        • 2.Qd8#
        • 2.c8Q#
      • 1...Kf8
        • 2.Qd8#
        • 2.c8Q#
        • 2.c8R#
      • 1...Kd7!
  • Keys
    • 1.Qh4!
      • 1...Kf8
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
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