MESON Chess Problem Database

Problem Display
PID: 136969 (4q3/b1R3B1/2pp4/P1kP1P2/P1pNn3/K1R2B2/2PN4/3Q3b w - - 0 1)

Janevski, Zivko

Liga Problemista, 1985/2

4q3/b1R3B1/2pp4/P1kP1P2/P1pNn3/K1R2B2/2PN4/3Q3b

#2

13 + 8

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.S2b3#
      • 2.S4b3#
      • 2.Rxc4#
    • 1...Sg3
      • 2.S2b3#
      • 2.S4b3#
      • 2.Rxc4#
    • 1...Sg5
      • 2.S2b3#
      • 2.S4b3#
      • 2.Rxc4#
    • 1...Sf6
      • 2.S2b3#
      • 2.S4b3#
      • 2.Rxc4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Sb3#
      • 1...Kxd5
        • 2.Se3#
      • 1...Qb8
        • 2.Se6#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sxc3!
    • 1.Sxe4+?
      • 1...Qxe4
        • 2.Sb3#
      • 1...Kxd5!
    • 1.Se2?
      • threat
        • 2.Sb3#
      • 1...Sxd2
        • 2.Bd4#
      • 1...Sxc3
        • 2.Bd4#
      • 1...Qb8
        • 2.Sxe4#
      • 1...Kxd5!
    • 1.Sb5?
      • threat
        • 2.Sb3#
      • 1...Sxd2
        • 2.Bd4#
      • 1...Sxc3
        • 2.Bd4#
      • 1...Kxd5!
    • 1.Se6+?
      • 1...Qxe6
        • 2.Sb3#
      • 1...Kxd5!
    • 1.Qe2?
      • threat
        • 2.Qxc4#
      • 1...Kxd5
        • 2.Qxc4#
      • 1...Sxd2!
    • 1.Qf1?
      • threat
        • 2.Qxc4#
      • 1...Kxd5
        • 2.Qxc4#
      • 1...Sxd2!
  • Keys
    • 1.Sxc6!
      • threat
        • 2.Sb3#
      • 1...Kxd5
        • 2.Sb4#
      • 1...Sxd2
        • 2.Bd4#
      • 1...Sxc3
        • 2.Bd4#
      • 1...Qb8
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);P_PINP(e),XP(b)
      • Threat
        • S(H)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,P_SPINS(c),XP(J)::S(C)
        • Q(h);N_GUARD::S(H)
        • S(c);N_GUARD::R(E)+S(C),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • S(C);CHECK,XS(c)
      • Vars
        • Q(h);XS(C)::S(H)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,XP(J)
    • Try
      • S(H);
      • Threat
        • S(C)
      • Vars
        • S(c);XS(C)::B(M)
        • S(c);N_SPINP(b),P_SPINP(e),XR(E)::B(M)
        • Q(h);N_GUARD::S(C),XS(c)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)
    • Try
      • S(H);
      • Threat
        • S(C)
      • Vars
        • S(c);XS(C)::B(M)
        • S(c);N_SPINP(b),P_SPINP(e),XR(E)::B(M)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)
    • Try
      • S(H);CHECK
      • Vars
        • Q(h);XS(H)::S(C)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)::QAB1(A),XP(b)
      • Refutation
        • S(c);XS(C)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)::QAB1(A),XP(b)
      • Refutation
        • S(c);XS(C)
  • Actual
    • S(H);XP(e)
    • Threat
      • S(C)
    • Vars
      • K(d);N_SPINP(b),P-FLIGHT,P_SPINS(c),XP(J)::S(H)
      • S(c);XS(C)::B(M)
      • S(c);N_SPINP(b),XR(E)::B(M)
      • Q(h);N_GUARD::S(C),XS(c)
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