MESON Chess Problem Database

Problem Display
PID: 242022 (8/3N4/Q7/8/1k6/3K4/1P6/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/3N4/Q7/8/1k6/3K4/1P6/8

#2

4 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Qa3#
  • Tries
    • 1.Se5?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kc5!
    • 1.Sb6?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kc5!
    • 1.Sf6?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kc5!
    • 1.Sb8?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kc5!
    • 1.Sf8?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kc5!
    • 1.Qa1?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kb5!
    • 1.Qa5+?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kxa5!
    • 1.Qa7?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kb5!
    • 1.Qa8?
      • 1...Kb3
        • 2.Qa3#
      • 1...Kb5!
  • Keys
    • 1.Qb6+!
      • 1...Ka4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);CHECK
    • Vars
      • K(a);P-FLIGHT::S(D)
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