MESON Chess Problem Database

Problem Display
PID: 242007 (8/8/4N3/1Q6/4k3/7K/8/3N4 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1935

8/8/4N3/1Q6/4k3/7K/8/3N4

#2

4 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qd3#
  • Tries
    • 1.Sd4?
      • 1...Kf4
        • 2.Qf5#
      • 1...Kxd4!
    • 1.Qc5?
      • 1...Kf3
        • 2.Qe3#
      • 1...Kd3!
    • 1.Qg5?
      • 1...Kf3
        • 2.Qe3#
        • 2.Qg2#
        • 2.Qg4#
      • 1...Kd3!
  • Keys
    • 1.Sc3+!
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(A);CHECK
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAB1(C)
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