MESON Chess Problem Database

Problem Display
PID: 245938 (3Nk3/K1R1P2r/4P3/8/8/8/8/8 w - - 0 1)

Kopyl, Valery Volodimirovich

Kudesnik, 2011

3Nk3/K1R1P2r/4P3/8/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.exf7#
  • Tries
    • 1.Rc8?
      • threat
        • 2.Sc6#
      • 1...Rxe7+
        • 2.Sb7#
      • 1...Kxe7!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Sd6#
      • 1...Rxe7
        • 2.Rc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE::P(A),XR(a)
  • Tries
    • Try
      • R(C);P_SPINP(D)
      • Threat
        • R(C)+S(E)
      • Vars
        • R(a);CHECK,SBLOCK,XP(D)::R(C)+S(E)
      • Refutation
        • K(b);P-FLIGHT,XP(D)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(a);SBLOCK,XP(D)::R(C)
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