MESON Chess Problem Database

Problem Display
PID: 241839 (8/8/n7/4Q3/2kP4/P7/1K2P3/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1930

8/8/n7/4Q3/2kP4/P7/1K2P3/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sc7
      • 2.Qc5#
    • 1...Sb8
      • 2.Qc5#
  • Tries
    • 1.Kc2?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Sb4+!
    • 1.Qd6?
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Kb5!
    • 1.Qa5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Kxd4!
    • 1.Qf5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Kxd4!
    • 1.Qg5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Kxd4!
    • 1.Qh5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Kxd4!
  • Keys
    • 1.a4!
      • 1...Kb4
        • 2.Qb5#
      • 1...Sb4
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#

FEATURES

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