MESON Chess Problem Database

Problem Display
PID: 228781 (8/8/8/2K5/6B1/3k4/1Q6/8 w - - 0 1)

Latzel, Gerhard Paul

Deutsche Schachzeitung, 1968

8/8/8/2K5/6B1/3k4/1Q6/8

#2

3 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qd4#
    • 1...Ke4
      • 2.Qd4#
  • Tries
    • 1.Bd1?
      • threat
        • 2.Qd4#
      • 1...Ke3
        • 2.Qd4#
      • 1...Ke4!
    • 1.Bh5?
      • 1...Ke3
        • 2.Qd4#
      • 1...Ke4!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxc3!
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxd2!
    • 1.Qf2?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kc3!
    • 1.Qb4?
      • 1...Ke3
        • 2.Qd4#
      • 1...Kc2!
  • Keys
    • 1.Kd5!
      • 1...Ke3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAB1(A)
    • K(a);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
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