MESON Chess Problem Database

Problem Display
PID: 182470 (Q2n1BB1/N7/2rPnp2/3kb2R/1K4R1/8/8/8 w - - 0 1)

Ilievski, Tode

1st HM., Brazil Ty., 1977

Q2n1BB1/N7/2rPnp2/3kb2R/1K4R1/8/8/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sf7
      • 2.Qxc6#
  • Tries
    • 1.Bxe6+?
      • 1...Sxe6
        • 2.Qxc6#
      • 1...Kxe6!
    • 1.Rf5?
      • 1...Sf7
        • 2.Qxc6#
      • 1...Sb7!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc3#
        • 2.Sc7#
        • 2.Rd4#
      • 1...Sb7
        • 2.Rd4#
      • 1...Sf7
        • 2.Sc3#
      • 1...f5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,N_SPINS(d)::QAB1(F),XR(c)
  • Tries
    • Try
      • B(H);CHECK,XS(d)
      • Vars
        • S(f);SBLOCK,XB(H)::QAB1(F),XR(c)
      • Refutation
        • K(a);N_SPINB(b),N_SPINR(c),S_FLIGHT,XB(H)
    • Try
      • R(C);
      • Vars
        • S(f);N_GUARD,N_SPINS(d)::QAB1(F),XR(c)
      • Refutation
        • S(f);N_SPINR(c)
  • Actual
    • S(E);
    • Threat
      • DUALS(3)
    • Vars
      • S(f);N_SPINR(c)::R1(B)
      • S(f);N_SPINS(d)::S(E)
      • P(e);N_SPINB(b)::S(E)
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