MESON Chess Problem Database

Problem Display
PID: 227786 (8/3P1k1P/3KR2P/8/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1926

8/3P1k1P/3KR2P/8/8/8/8/8

#2

5 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Rf6#
  • Tries
    • 1.Rg6?
      • 1...Kf8
        • 2.Rf6#
      • 1...Kxg6!
    • 1.h8S+?
      • 1...Kf8
        • 2.Re8#
        • 2.d8Q#
        • 2.d8R#
      • 1...Kg8!
  • Keys
    • 1.d8S+!
      • 1...Kf8
        • 2.h8Q#
        • 2.h8R#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::R(B)
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • P(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(D);CHECK
    • Vars
      • K(a);P-FLIGHT::P=Q
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