MESON Chess Problem Database

Problem Display
PID: 219634 (8/8/8/5P2/5Q2/3K4/8/4k3 w - - 0 1)

Dittmann, Dr Wolfgang

Deutsche Schachzeitung, 1968

8/8/8/5P2/5Q2/3K4/8/4k3

#2

3 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Qd2#
      • 2.Qf1#
  • Tries
    • 1.Kc3?
      • 1...Kd1
        • 2.Qd2#
        • 2.Qf1#
      • 1...Ke2!
    • 1.Qh2?
      • threat
        • 2.Qg1#
        • 2.Qe2#
      • 1...Kd1
        • 2.Qg1#
        • 2.Qh1#
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qe3+?
      • 1...Kd1
        • 2.Qg1#
        • 2.Qd2#
      • 1...Kf1!
    • 1.Qg3+?
      • 1...Kd1
        • 2.Qg1#
      • 1...Kf1!
    • 1.Qf2+?
      • 1...Kd1
        • 2.Qg1#
        • 2.Qf1#
        • 2.Qd2#
      • 1...Kxf2!
    • 1.Qd4?
      • threat
        • 2.Qg1#
      • 1...Kd1
        • 2.Qa1#
        • 2.Qg1#
      • 1...Kf1!
    • 1.Qh4+?
      • 1...Kd1
        • 2.Qh1#
      • 1...Kf1!
  • Keys
    • 1.f6!
      • 1...Kd1
        • 2.Qd2#
        • 2.Qf1#

FEATURES

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