MESON Chess Problem Database

Problem Display
PID: 241803 (8/1K3p2/3k1B2/3P4/2P3Q1/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1929

8/1K3p2/3k1B2/3P4/2P3Q1/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Be7#
  • Tries
    • 1.Ka6?
      • 1...Kc5
        • 2.Be7#
      • 1...Kc7!
    • 1.Ka7?
      • 1...Kc5
        • 2.Be7#
      • 1...Kc7!
    • 1.Qe2?
      • threat
        • 2.Qe7#
      • 1...Kd7
        • 2.Qe7#
      • 1...Kc5!
    • 1.Qf4+?
      • 1...Kc5
        • 2.Be7#
      • 1...Kd7!
    • 1.Qh4?
      • 1...Kc5
        • 2.Be7#
      • 1...Kd7!
    • 1.Qg8?
      • 1...Kd7
        • 2.Qd8#
      • 1...Kc5!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qe7#
      • 1...Kc5
        • 2.Be7#
      • 1...Kd7
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(D)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);P-FLIGHT::QAR1(B)
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