MESON Chess Problem Database

Problem Display
PID: 137847 (5K2/4p1R1/4kN2/2PR4/8/8/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

The Problemist, 2010

5K2/4p1R1/4kN2/2PR4/8/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rh5?
      • 1...exf6
        • 2.Re7#
      • 1...Kxf6!
    • 1.Rgg5?
      • 1...exf6
        • 2.Rd6#
      • 1...Kxf6!
    • 1.Rh7?
      • 1...Kxf6
        • 2.Rh6#
      • 1...exf6!
  • Keys
    • 1.Rdg5!
      • 1...Kxf6
        • 2.R7g6#
      • 1...exf6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK,XS(C)::R1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
    • Try
      • R(D);
      • Vars
        • P(b);N_GUARD,SBLOCK,XS(C)::R1(B)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
    • Try
      • R(D);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::R(D)
      • Refutation
        • P(b);XS(C)
  • Actual
    • R(B);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(C)::R1(D)
      • P(b);SBLOCK,XS(C)::R1(D)
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