MESON Chess Problem Database

Problem Display
PID: 108657 (NR6/kn1r4/P7/R2N4/8/8/8/1K6 w - - 0 1)

Klepacek, Miroslav

Kotva, 1965

NR6/kn1r4/P7/R2N4/8/8/8/1K6

#2

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb7+?
      • 1...Kxa8
        • 2.Sb6#
      • 1...Rxb7+!
  • Keys
    • 1.Sab6!
      • threat
        • 2.Ra8#
      • 1...Kxb8
        • 2.a7#
      • 1...Rxd5
        • 2.Rxb7#
      • 1...Rd8
        • 2.Rxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,XS(b)
      • Vars
        • K(a);P-FLIGHT,XS(E)::S(C)
      • Refutation
        • R(c);CHECK,XR(F)
  • Actual
    • S(E);
    • Threat
      • R1(F)
    • Vars
      • K(a);OGATE,S_FLIGHT,XR(F)::P(D)
      • R(c);N_GUARD,XS(C)::R1(F),XS(b)
      • R(c);N_GUARD::R1(F),XS(b)
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