MESON Chess Problem Database

Problem Display
PID: 231110 (8/8/7k/5pR1/7K/7R/7P/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/8/7k/5pR1/7K/7R/7P/8

#2

4 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kh7
      • 2.Kg3#
    • 1...f4
      • 2.Kg4#
  • Tries
    • 1.Rg6+?
      • 1...Kh7
        • 2.Kg5#
      • 1...Kxg6!
    • 1.Rg8?
      • threat
        • 2.Kg3#
      • 1...f4
        • 2.Kg4#
      • 1...Kh7!
  • Keys
    • 1.Rhg3!
      • threat
        • 2.Rh5#
      • 1...Kh7
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::R(B)+K(C)
    • P(a);::R(B)+K(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)+K(C)
      • Refutation
        • K(b);P-FLIGHT,XR(D)
    • Try
      • R(D);
      • Threat
        • R(B)+K(C)
      • Vars
        • P(a);::R(B)+K(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(B);
    • Threat
      • R1(D)
    • Vars
      • K(b);P-FLIGHT::R(D)
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