MESON Chess Problem Database

Problem Display
PID: 143604 (8/P1bp4/1pp2P2/Pp1kpP2/rP2N2K/4P3/N1R1P1Q1/3B4 w - - 0 1)

Janevski, Zivko

Probleemblad, 2011

8/P1bp4/1pp2P2/Pp1kpP2/rP2N2K/4P3/N1R1P1Q1/3B4

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Sxb4#
    • 1...bxa5
      • 2.Rc5#
    • 1...c5
      • 2.a8Q#
      • 2.a8B#
  • Tries
    • 1.Sf2+?
      • 1...Kd6
        • 2.Rd2#
      • 1...e4!
    • 1.Sec3+?
      • 1...Kd6
        • 2.Rd2#
      • 1...Kc4!
    • 1.Sg3+?
      • 1...Kd6
        • 2.Rd2#
      • 1...e4!
    • 1.Sc5+?
      • 1...Kd6
        • 2.Sb7#
        • 2.Rd2#
      • 1...e4!
    • 1.Sg5+?
      • 1...Kd6
        • 2.Sf7#
        • 2.Rd2#
      • 1...e4!
    • 1.Sd6+?
      • 1...Kxd6
        • 2.Rd2#
      • 1...e4!
    • 1.Rc1?
      • threat
        • 2.Bb3#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...c5
        • 2.a8Q#
        • 2.a8B#
      • 1...Ra3!
    • 1.Rc3?
      • threat
        • 2.Bb3#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...c5
        • 2.a8Q#
        • 2.a8B#
      • 1...Ra3!
    • 1.Rc4?
      • threat
        • 2.Qg8#
      • 1...Kxc4
        • 2.Sd2#
      • 1...bxc4
        • 2.Sac3#
      • 1...c5!
  • Keys
    • 1.Rxc6!
      • threat
        • 2.Sec3#
      • 1...Kxc6
        • 2.a8Q#
        • 2.a8B#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...dxc6
        • 2.Bb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);P_PINS(H),XP(G)::S(B),XR(a)
    • P(e);N_GUARD,XP(J)::R1(C)
    • P(f);::P=Q
  • Tries
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Vars
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • P(d);N_PINP(G),P_SPINP(d)
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Vars
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • K(c);N_PINP(G),S_FLIGHT
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Vars
        • K(c);P-FLIGHT::R(C)
      • Refutation
        • P(d);N_PINP(G),P_SPINP(d)
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Refutation
        • P(d);N_PINP(G),P_SPINP(d)
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Refutation
        • P(d);N_PINP(G),P_SPINP(d)
    • Try
      • S(H);CHECK,P_SPINP(G)
      • Vars
        • K(c);P-FLIGHT,XS(H)::R(C)
      • Refutation
        • P(d);N_PINP(G),P_SPINP(d)
    • Try
      • R(C);
      • Threat
        • B(A)
      • Vars
        • R(a);P_PINS(H),XP(G)::S(B),XR(a)
        • P(f);::P=Q
      • Refutation
        • R(a);
    • Try
      • R(C);
      • Threat
        • B(A)
      • Vars
        • R(a);P_PINS(H),XP(G)::S(B),XR(a)
        • P(f);::P=Q
      • Refutation
        • R(a);
    • Try
      • R(C);
      • Threat
        • QAB(E)
      • Vars
        • K(c);S_FLIGHT,XR(C)::S(H)
        • P(b);SBLOCK,XR(C)::S(B)
      • Refutation
        • P(f);
  • Actual
    • R(C);XP(f)
    • Threat
      • QAB(E)+S(H),DCHECK
    • Vars
      • K(c);S_FLIGHT,XR(C)::P=Q
      • R(a);P_PINS(H),XP(G)::S(B),XR(a)
      • P(h);SBLOCK,XR(C)::B(A)
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