MESON Chess Problem Database

Problem Display
PID: 257528 (k1N5/Pp6/2PK4/5R2/8/8/8/8 w - - 0 1)

Labai, Zoltan

Astafyeva-30 JT (Kudesnik), 2021

k1N5/Pp6/2PK4/5R2/8/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Ra5?
      • threat
        • 2.Sb6#
      • 1...b6
        • 2.Sxb6#
      • 1...bxc6!
    • 1.Rb5?
      • threat
        • 2.cxb7#
      • 1...bxc6
        • 2.Rb8#
      • 1...b6!
  • Keys
    • 1.Rf7!
      • threat
        • 2.cxb7#
      • 1...bxc6
        • 2.Sb6#
      • 1...b5
        • 2.Sb6#
      • 1...b6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • S(E)
      • Vars
        • P(a);::S(E),XP(a)
      • Refutation
        • P(a);XP(B)
    • Try
      • R(A);
      • Threat
        • P(B),XP(a)
      • Vars
        • P(a);OGATE,XP(B)::R1(A)
      • Refutation
        • P(a);
  • Actual
    • R(A);
    • Threat
      • P(B),XP(a)
    • Vars
      • P(a);XP(B)::S(E)
      • P(a);::S(E)
      • P(a);::S(E),XP(a)
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