MESON Chess Problem Database

Problem Display
PID: 240463 (k1bK4/PR6/8/8/8/N7/R7/8 w - - 0 1)

Parkhomenko, Nikolai A

Problemas, 1995

k1bK4/PR6/8/8/8/N7/R7/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5?
      • threat
        • 2.Rb8#
      • 1...Bxb7
        • 2.Sc7#
      • 1...Kxb7!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rb8#
      • 1...Kxb7
        • 2.a8Q#
      • 1...Bxb7
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(D)
      • Vars
        • B(b);SBLOCK,XR(D)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • S(B);
    • Threat
      • R1(D)
    • Vars
      • K(a);OGATE,S_FLIGHT,XR(D)::P=Q
      • B(b);SBLOCK,XR(D)::S(B)
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