MESON Chess Problem Database

Problem Display
PID: 231467 (8/Q1NPP3/2k5/4K3/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/Q1NPP3/2k5/4K3/8/8/8/8

#2

5 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd7
      • 2.e8Q#
  • Tries
    • 1.Qb6+?
      • 1...Kxd7
        • 2.e8Q#
      • 1...Kxb6!
    • 1.Qa5?
      • 1...Kxd7
        • 2.e8Q#
      • 1...Kb7!
    • 1.Qa6+?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kxc7
        • 2.d8Q#
      • 1...Kxd7!
    • 1.Qb7+?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kxd7
        • 2.e8Q#
      • 1...Kxb7!
  • Keys
    • 1.Qb8!
      • 1...Kc5
        • 2.Qb5#
      • 1...Kxd7
        • 2.e8Q#

FEATURES

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