MESON Chess Problem Database

Problem Display
PID: 241945 (8/4p3/4K3/4Np2/5k2/2P5/8/6Q1 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/4p3/4K3/4Np2/5k2/2P5/8/6Q1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qd4#
  • Tries
    • 1.Kd7?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#
      • 1...e6!
    • 1.Kf7?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#
      • 1...e6!
    • 1.Sc4?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kf3!
    • 1.Qf2+?
      • 1...Ke4
        • 2.Qd4#
        • 2.Qf3#
      • 1...Kg5!
    • 1.Qg3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxg3!
  • Keys
    • 1.Kxe7!
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qd4#

FEATURES

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