MESON Chess Problem Database

Problem Display
PID: 184446 (3K3Q/8/1Nk5/8/8/8/8/6B1 w - - 0 1)

Ernst, Erich

Gemeindemitteilungsblatt von Rheinmunster, 2000

(First published on Fri Sep 29 2000)

3K3Q/8/1Nk5/8/8/8/8/6B1

#2

4 + 1

15391 Problemschach-Jahrbuch (2000) 2001
5454 Near Snap 2018
3713 Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qf6#
  • Tries
    • 1.Kc8?
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb5!
    • 1.Qb2?
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb7!
    • 1.Qd4?
      • threat
        • 2.Qd5#
        • 2.Qd7#
      • 1...Kb5
        • 2.Qa4#
      • 1...Kb7!
    • 1.Qg7?
      • threat
        • 2.Qd7#
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb5!
    • 1.Qh1+?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kb5!
    • 1.Qh4?
      • 1...Kb5
        • 2.Qa4#
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb7!
    • 1.Qh5?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...Kb7!
  • Keys
    • 1.Qa1!
      • 1...Kb5
        • 2.Qa4#
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb7
        • 2.Qa8#

Anticipated by 206947(1859), 4506(1873), 32680(1873), 218488(1882), 24321(1885), 181144(1904), 182379(1906), 109336(1920), 22076(1924), 206740(1925), 227725(1926), 76425(1929), 46372(1941), 18804(1958), 218807(1976), 138100(1981), 133136(1983), 211346(1986)

This anticipates 47757(2003), 67253(2006), 232491(2012), 235007(2019)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(D)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT::QAR2(D)
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