MESON Chess Problem Database

Problem Display
PID: 231457 (8/RPBk1K2/2N5/1P6/8/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/RPBk1K2/2N5/1P6/8/8/8/8

#2

6 + 1

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc7
      • 2.b8Q#
  • Tries
    • 1.Kf6?
      • 1...Kxc7
        • 2.b8Q#
      • 1...Ke8!
    • 1.Kf8?
      • 1...Kxc7
        • 2.b8Q#
      • 1...Ke6!
  • Keys
    • 1.b8S+!
      • 1...Kc8
        • 2.Se7#

FEATURES

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