MESON Chess Problem Database

Problem Display
PID: 241739 (6QN/6p1/7k/8/6K1/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

6QN/6p1/7k/8/6K1/8/8/8

#2

3 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Sf7#
      • 2.Qg6#
    • 1...g6
      • 2.Sf7#
      • 2.Qxg6#
  • Tries
    • 1.Kf4?
      • 1...Kh5
        • 2.Qh7#
      • 1...g6
        • 2.Qxg6#
      • 1...g5+!
    • 1.Kh4?
      • 1...g6
        • 2.Sf7#
        • 2.Qxg6#
      • 1...g5+!
    • 1.Qe6+?
      • 1...g6
        • 2.Qxg6#
      • 1...Kh7!
    • 1.Qf7?
      • threat
        • 2.Qh5#
        • 2.Qg6#
      • 1...g5
        • 2.Qg6#
      • 1...g6
        • 2.Qxg6#
      • 1...Kh7!
    • 1.Qe8?
      • threat
        • 2.Qh5#
        • 2.Qg6#
      • 1...g5
        • 2.Qg6#
      • 1...g6
        • 2.Qxg6#
      • 1...Kh7!
  • Keys
    • 1.Kf5!
      • 1...g6+
        • 2.Qxg6#
      • 1...Kh5
        • 2.Qh7#
      • 1...g5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • P(b);OGATE::QAR1(B),XP(b)
      • Refutation
        • P(b);CHECK
    • Try
      • K(A);P-FLIGHT
      • Refutation
        • P(b);CHECK
    • Try
      • Q(B);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAR1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(B)
        • P(b);::QAR1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(B)
        • P(b);::QAR1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • P(b);CHECK,OGATE::QAR1(B),XP(b)
      • K(a);P-FLIGHT::QAR2(B)
      • P(b);OGATE::QAR1(B)
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