MESON Chess Problem Database

Problem Display
PID: 242070 (8/7N/4P3/2K1kb1Q/8/7N/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/7N/4P3/2K1kb1Q/8/7N/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe2#
    • 1...Kxe6
      • 2.Qe8#
  • Tries
    • 1.Sf2?
      • 1...Kxe6
        • 2.Qe8#
      • 1...Kf4!
    • 1.Sf8?
      • 1...Ke4
        • 2.Qe2#
      • 1...Kf6!
  • Keys
    • 1.e7!
      • threat
        • 2.e8Q#
        • 2.e8R#
      • 1...Ke4
        • 2.Qe2#
      • 1...Ke6
        • 2.e8Q#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),P-FLIGHT::QAR2(C)
    • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XP(D)::QAR2(C)
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
  • Actual
    • P(D);
    • Threat
      • P=Q
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAR2(C)
      • K(a);N_SPINB(b),P-FLIGHT::P=Q
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