MESON Chess Problem Database

Problem Display
PID: 138552 (4n3/2b1RPq1/1P4p1/N2kn3/1Pr1N1rP/KB1pB2Q/4P1R1/8 w - - 0 1)

Nikoletic, Vukota

Liga Problemista, 1981/5

4n3/2b1RPq1/1P4p1/N2kn3/1Pr1N1rP/KB1pB2Q/4P1R1/8

#2

13 + 9

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qf3#
    • 1...Rxe4
      • 2.Qe6#
    • 1...Bd6
      • 2.Sc3#
    • 1...Sf3
      • 2.Bxc4#
    • 1...Sc6
      • 2.Bxc4#
    • 1...Sd7
      • 2.Bxc4#
    • 1...Sxf7
      • 2.Bxc4#
    • 1...Sd6
      • 2.Sc3#
  • Tries
    • 1.Bxc4+?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Sxc4+!
    • 1.fxe8S?
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Qf3#
      • 1...Rxe4
        • 2.Qe6#
      • 1...Sf3
        • 2.Sxc7#
        • 2.Bxc4#
      • 1...Sc6
        • 2.Sxc7#
        • 2.Bxc4#
      • 1...Sd7
        • 2.Sxc7#
        • 2.Bxc4#
      • 1...Sf7
        • 2.Sxc7#
        • 2.Bxc4#
      • 1...Qxe7!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Qf3#
      • 1...Rxe4
        • 2.Qe6#
      • 1...Sxf7
        • 2.Bxc4#
      • 1...Sf3
        • 2.Bxc4#
      • 1...Sc6
        • 2.Bxc4#
      • 1...Sd7
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(d);N_SPINR(b),OGATEB,P_SPINS(e),S_FLIGHT,XS(H)::QAB1(F)
    • R(c);OGATE,SBLOCK,XS(H)::QAB1(F)
    • B(g);P_PINP(G),SBLOCK::S(H)
    • S(e);N_GUARD::B(D),XR(b)
    • S(e);N_GUARD,XP(M)::B(D),XR(b)
    • S(i);SBLOCK::S(H)
  • Tries
    • Try
      • B(D);CHECK,XR(b)
      • Vars
        • K(d);P_SPINS(e),S_FLIGHT,XS(H)::QAB1(F)
      • Refutation
        • S(e);CHECK,XB(D)
    • Try
      • P(M);XS(i)
      • Threat
        • S(H)
      • Vars
        • K(d);N_SPINR(b),OGATEB,P_SPINS(e),S_FLIGHT,XS(H)::QAB1(F)
        • R(c);OGATE,SBLOCK,XS(H)::QAB1(F)
      • Refutation
        • Q(h);P_PINP(G),XR(L)
  • Actual
    • B(E);
    • Threat
      • S(H)
    • Vars
      • K(d);N_SPINR(b),OGATEB,P_SPINS(e),S_FLIGHT,XS(H)::QAB1(F)
      • R(c);OGATE,SBLOCK,XS(H)::QAB1(F)
      • S(e);N_GUARD,XP(M)::B(D),XR(b)
      • S(e);N_GUARD::B(D),XR(b)
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Developed and maintained by Brian Stephenson.
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