MESON Chess Problem Database

Problem Display
PID: 241725 (8/6p1/6Qb/6p1/6k1/8/5KN1/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

8/6p1/6Qb/6p1/6k1/8/5KN1/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kh3
      • 2.Qh5#
  • Tries
    • 1.Se3+?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Kh4!
    • 1.Sf4?
      • 1...Kh4
        • 2.Qh5#
      • 1...Kxf4!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qf3#
      • 1...Kh3
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR2(C)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XS(B)
  • Actual
    • Q(C);N_PINP(b)
    • Threat
      • QAB1(C)
    • Vars
      • K(a);S_FLIGHT::QAR2(C)
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