MESON Chess Problem Database

Problem Display
PID: 202872 (8/8/1Kp5/8/1k6/1p6/1P3p2/5Q2 w - - 0 1)

Ballo, Gyorgy

Magyar Sakkvilag, 1926

8/8/1Kp5/8/1k6/1p6/1P3p2/5Q2

#2

3 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qc4#
    • 1...c5
      • 2.Qb5#
  • Tries
    • 1.Ka6?
      • 1...Ka4
        • 2.Qc4#
      • 1...c5
        • 2.Qb5#
      • 1...Kc5!
  • Keys
    • 1.Kxc6!
      • threat
        • 2.Qb5#
      • 1...Ka4
        • 2.Qb5#
      • 1...Ka5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::QAR2(A)
    • P(d);N_GUARD::QAR1(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT,XP(d)
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT::QAB1(A)
      • K(c);S_FLIGHT::QAR1(A)
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