MESON Chess Problem Database

Problem Display
PID: 157709 (8/3p3P/6N1/3k4/P1R2PK1/NRp5/B7/8 w - - 0 1)

Janevski, Zivko

Land og Folk, 1970

8/3p3P/6N1/3k4/P1R2PK1/NRp5/B7/8

#2

9 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Kf5?
      • 1...c2
        • 2.Rd3#
      • 1...d6
        • 2.Se7#
        • 2.Rb5#
      • 1...Kd6!
    • 1.Sf8?
      • 1...c2
        • 2.Rd3#
      • 1...d6
        • 2.Rb5#
      • 1...Kd6!
    • 1.Rb5+?
      • 1...Ke6
        • 2.Rc6#
      • 1...Kd6!
    • 1.Rcxc3?
      • 1...Ke4
        • 2.Rb4#
      • 1...Kd6
        • 2.Rb6#
      • 1...Ke6
        • 2.Rb6#
      • 1...d6
        • 2.Rb4#
      • 1...Kd4!
    • 1.f5?
      • 1...c2
        • 2.Rd3#
      • 1...d6
        • 2.Rb5#
      • 1...Kd6!
    • 1.h8Q?
      • threat
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...d6
        • 2.Qg8#
      • 1...Ke6!
  • Keys
    • 1.Rbxc3!
      • 1...Kd6
        • 2.Rd4#
      • 1...Ke6
        • 2.Rc6#
      • 1...d6
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(a);OGATE::R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(H);
      • Vars
        • P(a);OGATE::R(C)
        • P(c);SBLOCK::R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(A)+R(E),DCHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(E);XP(a)
      • Vars
        • K(b);S_FLIGHT::R(C)
        • K(b);P-FLIGHT::R(C)
        • K(b);S_FLIGHT::B(A)+R(C),DCHECK
        • P(c);SBLOCK::B(A)+R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(F);
      • Vars
        • P(a);OGATE::R(C)
        • P(c);SBLOCK::R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(I);
      • Threat
        • QAR1(I)
      • Vars
        • K(b);P-FLIGHT::QAB1(I)
        • P(c);SBLOCK::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);XP(a)
    • Vars
      • K(b);P-FLIGHT::R(E)
      • K(b);S_FLIGHT::B(A)+R(E),DCHECK
      • P(c);SBLOCK::B(A)+R(E)
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