MESON Chess Problem Database

Problem Display
PID: 241880 (N3Q3/8/3k4/4p3/2K5/6P1/7B/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1931

N3Q3/8/3k4/4p3/2K5/6P1/7B/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.g4#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Qd7#
      • 1...e4
        • 2.g4#
      • 1...Kc7!
    • 1.Qf7?
      • 1...Kc6
        • 2.Qd5#
        • 2.Qc7#
      • 1...e4!
    • 1.Qe7+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxe7!
    • 1.Qd8+?
      • 1...Kc6
        • 2.Qc7#
        • 2.Qd5#
      • 1...Ke6!
  • Keys
    • 1.Bg1!
      • 1...e4
        • 2.Bc5#

FEATURES

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