MESON Chess Problem Database

Problem Display
PID: 241819 (8/3p4/3Q4/3p4/2kN1P2/8/3K4/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1929

8/3p4/3Q4/3p4/2kN1P2/8/3K4/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qb4#
  • Tries
    • 1.Ke2?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kc3!
    • 1.Qe7?
      • 1...Kxd4
        • 2.Qb4#
      • 1...d6!
    • 1.Qf8?
      • 1...Kxd4
        • 2.Qb4#
      • 1...d6!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qc3#
      • 1...Kxd4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINP(b),XS(B)::QAR2(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b),XS(B)::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XS(B)::QAR2(D)
      • Refutation
        • P(c);
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XS(B)::QAR2(D)
      • Refutation
        • P(c);
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(a);P-FLIGHT,XS(B)::QAR2(D)
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