MESON Chess Problem Database

Problem Display
PID: 249376 (8/8/8/8/2Q5/8/8/1N1k2K1 w - - 0 1)

Dittmann, Dr Wolfgang

Latzel, Gerhard Paul

Proband, Wolfgang

Schulz, Karl-Dieter

Uysal, Achmet

Deutsche Schachzeitung, 1968

8/8/8/8/2Q5/8/8/1N1k2K1

#2

3 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.Qf1#
  • Tries
    • 1.Qa2?
      • threat
        • 2.Qd2#
      • 1...Ke1
        • 2.Qd2#
      • 1...Kc1!
    • 1.Qd3+?
      • 1...Ke1
        • 2.Qf1#
        • 2.Qd2#
      • 1...Kc1!
    • 1.Qc2+?
      • 1...Ke1
        • 2.Qd2#
      • 1...Kxc2!
  • Keys
    • 1.Kg2!
      • 1...Ke1
        • 2.Qf1#

FEATURES

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