MESON Chess Problem Database

Problem Display
PID: 241874 (5knQ/8/4K2p/7P/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1931

5knQ/8/4K2p/7P/8/8/8/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke8
      • 2.Qxg8#
  • Tries
    • 1.Kd6?
      • 1...Ke8
        • 2.Qxg8#
      • 1...Kf7!
    • 1.Qg7+?
      • 1...Ke8
        • 2.Qxg8#
      • 1...Kxg7!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qf7#
      • 1...Ke8
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(C),XS(c)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(C),XS(c)
      • Refutation
        • K(b);N_SPINS(c),P-FLIGHT
    • Try
      • Q(C);CHECK,N_PINS(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(C),XS(c)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);N_PINS(c)
    • Threat
      • QAR1(C)
    • Vars
      • K(b);P-FLIGHT::QAR2(C),XS(c)
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