MESON Chess Problem Database

Problem Display
PID: 271958 (8/7B/8/N7/3pp3/P1k5/5PR1/2K2RQ1 w - - 0 1)

Mihajloski, Zlatko

Miloseski, Bosko

Shakhmatnaya kompozitsiya, 1998

8/7B/8/N7/3pp3/P1k5/5PR1/2K2RQ1

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rg8?
      • 1...d3
        • 2.Qg7#
      • 1...e3
        • 2.Rc8#
      • 1...Kd3!
    • 1.Qh2?
      • 1...d3
        • 2.Qe5#
      • 1...e3
        • 2.Qc7#
      • 1...Kd3!
    • 1.f3?
      • 1...exf3
        • 2.Rc2#
      • 1...d3
        • 2.Qc5#
      • 1...e3
        • 2.Rc2#
      • 1...Kd3!
  • Keys
    • 1.f4!
      • 1...Kd3
        • 2.Rf3#
      • 1...exf4 ep
        • 2.Rc2#
      • 1...d3
        • 2.Qc5#
      • 1...e3
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • P(b);OGATEB,SBLOCK::QAB(C)
        • P(c);::R(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(C);
      • Vars
        • P(b);OGATEB,SBLOCK::QAB(C)
        • P(c);::QAR(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • P(D);
      • Vars
        • P(c);XP(D)::R1(E)
        • P(b);OGATE,SBLOCK::QAR2(C)
        • P(c);::R1(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
  • Actual
    • P(D);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c),S_CUTP(b)::R(B)
      • P(c);EP,XP(D)::R1(E)
      • P(b);OGATE,SBLOCK::QAR2(C)
      • P(c);::R1(E)
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