MESON Chess Problem Database

Problem Display
PID: 241756 (8/8/4Q3/7k/5P2/6p1/6K1/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

8/8/4Q3/7k/5P2/6p1/6K1/8

#2

3 + 2

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Qh3#
  • Tries
    • 1.Kf3?
      • 1...Kh4
        • 2.Qg4#
        • 2.Qh6#
      • 1...g2!
    • 1.Qf5+?
      • 1...Kh4
        • 2.Qh3#
        • 2.Qg5#
      • 1...Kh6!
    • 1.Qg8?
      • threat
        • 2.Qg5#
      • 1...Kh4
        • 2.Qg5#
      • 1...Kh6!
    • 1.Qg6+?
      • 1...Kh4
        • 2.Qg5#
      • 1...Kxg6!
    • 1.Qh6+?
      • 1...Kg4
        • 2.Qg5#
      • 1...Kxh6!
  • Keys
    • 1.Qf6!
      • 1...Kg4
        • 2.Qg5#

This anticipates 241914(1933), 241973(1933)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • P(a);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::QAR1(C)
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