MESON Chess Problem Database

Problem Display
PID: 227681 (2K5/8/3kNP2/5Q2/8/8/8/8 w - - 0 1)

Merenyi, Lajos

Magyar Sakkvilag, 1926

2K5/8/3kNP2/5Q2/8/8/8/8

#2

4 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qc5#
  • Tries
    • 1.Qa5?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe6!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe5!
    • 1.Qg5?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe6!
    • 1.Qh5?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe6!
  • Keys
    • 1.f7!
      • 1...Kc6
        • 2.Qc5#
      • 1...Ke7
        • 2.f8Q#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
  • Actual
    • P(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::P=Q
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