MESON Chess Problem Database

Problem Display
PID: 271660 (3N3Q/R7/K7/3k4/4N3/8/4P3/8 w - - 0 1)

Denes, Geczi

Buletin Problemistic, 1982

3N3Q/R7/K7/3k4/4N3/8/4P3/8

#2

6 + 1

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Sd6?
      • 1...Kxd6
        • 2.Qd4#
      • 1...Kc5!
    • 1.Sf7?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Kc6
        • 2.Qa8#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kc4!
    • 1.Rd7+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxe4!
  • Keys
    • 1.Sc6!
      • 1...Kc4
        • 2.Qg8#
      • 1...Kxe4
        • 2.Qe5#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Ke6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XS(B)::QAR1(F)
        • K(a);N_GUARD,S_FLIGHT::QAB(F)
        • K(a);N_GUARD,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • S(E);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAB(F)
      • K(a);N_GUARD,S_FLIGHT,XS(B)::QAR1(F)
      • K(a);OGATEB,S_FLIGHT,XS(E)::QAB(F)
      • K(a);N_GUARD,S_FLIGHT::QAR1(F)
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