MESON Chess Problem Database

Problem Display
PID: 242275 (K7/7P/8/2b5/1pNkPN2/p2B1p2/1P5r/2R1R3 w - - 0 1)

Kisis, Imants J

64 Shakhmatnoe obozrenie, 1989

K7/7P/8/2b5/1pNkPN2/p2B1p2/1P5r/2R1R3

#2

9 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.h8Q#
      • 2.h8B#
    • 1...Rc2
      • 2.h8Q#
      • 2.h8B#
    • 1...Rd2
      • 2.h8Q#
      • 2.h8B#
    • 1...Re2
      • 2.h8Q#
      • 2.h8B#
    • 1...Rf2
      • 2.h8Q#
      • 2.h8B#
  • Tries
    • 1.Bb1?
      • threat
        • 2.Se6#
      • 1...Rh6
        • 2.Red1#
      • 1...Rc2!
    • 1.Bf1?
      • threat
        • 2.Se6#
      • 1...Rh6
        • 2.Rcd1#
      • 1...Re2!
    • 1.Rcd1?
      • threat
        • 2.Se6#
      • 1...Rxb2
        • 2.h8Q#
        • 2.h8B#
      • 1...Rd2
        • 2.h8Q#
        • 2.h8B#
      • 1...Rh6
        • 2.Bf1#
      • 1...axb2!
  • Keys
    • 1.Red1!
      • threat
        • 2.Se6#
      • 1...Rd2
        • 2.h8Q#
        • 2.h8B#
      • 1...Rh6
        • 2.Bb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD,XP(C)::P=Q
    • R(a);N_GUARD::P=Q
  • Tries
    • Try
      • B(D);
      • Threat
        • S(G)
      • Vars
        • R(a);N_GUARD::R(B)
      • Refutation
        • R(a);
    • Try
      • B(D);
      • Threat
        • S(G)
      • Vars
        • R(a);N_GUARD::R(A)
      • Refutation
        • R(a);
    • Try
      • R(A);
      • Threat
        • S(G)
      • Vars
        • R(a);N_GUARD,XP(C)::P=Q
        • R(a);N_GUARD::P=Q
        • R(a);N_GUARD::R(A)+B(D)
      • Refutation
        • P(b);XP(C)
  • Actual
    • R(B);
    • Threat
      • S(G)
    • Vars
      • R(a);N_GUARD::P=Q
      • R(a);N_GUARD::R(B)+B(D)
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