MESON Chess Problem Database

Problem Display
PID: 231458 (1K6/1QNk4/1P6/2PN4/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

1K6/1QNk4/1P6/2PN4/8/8/8/8

#2

6 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Qc8#
  • Tries
    • 1.Sf6+?
      • 1...Kd8
        • 2.Se6#
      • 1...Ke7!
    • 1.Sb5+?
      • 1...Kd8
        • 2.Qc8#
        • 2.Qe7#
      • 1...Ke8
        • 2.Qe7#
      • 1...Ke6!
    • 1.Sa6+?
      • 1...Kd8
        • 2.Qc8#
        • 2.Qe7#
      • 1...Ke8
        • 2.Qe7#
      • 1...Ke6!
    • 1.Se6+?
      • 1...Ke8
        • 2.Sf6#
        • 2.Qe7#
      • 1...Kxe6!
    • 1.Sa8+?
      • 1...Kd8
        • 2.Qc8#
        • 2.Qe7#
      • 1...Ke8
        • 2.Qe7#
      • 1...Ke6!
    • 1.Se8+?
      • 1...Kd8
        • 2.Qc8#
        • 2.Qe7#
      • 1...Kxe8
        • 2.Qe7#
      • 1...Ke6!
    • 1.Qc6+?
      • 1...Kd8
        • 2.Se6#
        • 2.Qe8#
        • 2.Qd6#
      • 1...Kxc6!
    • 1.c6+?
      • 1...Kd8
        • 2.Qc8#
      • 1...Kd6!
  • Keys
    • 1.Qa6!
      • 1...Kc6
        • 2.Qb5#
      • 1...Kd8
        • 2.Qc8#

FEATURES

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