MESON Chess Problem Database

Problem Display
PID: 231587 (2R2K2/8/4k1p1/2P3Q1/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

2R2K2/8/4k1p1/2P3Q1/8/8/8/8

#2

4 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd7
      • 2.Qg4#
  • Tries
    • 1.Qd5+?
      • 1...Kf6
        • 2.Rc6#
      • 1...Kxd5!
    • 1.Qe5+?
      • 1...Kd7
        • 2.Qe8#
      • 1...Kxe5!
  • Keys
    • 1.Rc6+!
      • 1...Kd7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • R(C);CHECK
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
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