MESON Chess Problem Database

Problem Display
PID: 242283 (8/Q6B/1p1N3p/1Nr5/1p4n1/4k3/5RPp/3n1Kb1 w - - 0 1)

Kisis, Imants J

Hlas l'udu, 1993

8/Q6B/1p1N3p/1Nr5/1p4n1/4k3/5RPp/3n1Kb1

#2

7 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxc4#
    • 1...Rd5
      • 2.Sc4#
    • 1...Re5
      • 2.Sc4#
    • 1...Rg5
      • 2.Sc4#
    • 1...Rh5
      • 2.Sc4#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Qd4#
      • 1...Rxb5
        • 2.Sc4#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Rd5
        • 2.Sc4#
      • 1...Sb2
        • 2.Qe1#
      • 1...Sc3
        • 2.Qc1#
      • 1...Rc3!
    • 1.Qe7+?
      • 1...Re5
        • 2.Sc4#
      • 1...Se5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qd4#
      • 1...Rxb5
        • 2.Sc4#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Rd5
        • 2.Sc4#
      • 1...Re5
        • 2.Sc4#
      • 1...Se5
        • 2.Qxh6#
      • 1...Sf6
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD,P_SPINP(h)::S(E),XR(g)
    • R(g);N_GUARD,P_SPINP(h)::S(E)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • R(g);N_GUARD,XS(D)::S(E)
        • R(g);N_GUARD::S(E),XR(g)
        • R(g);N_GUARD::S(E)
        • S(a);OGATE::QAR2(F)
        • S(a);S_CUTR(g)::QAB(F)
      • Refutation
        • R(g);
    • Try
      • Q(F);CHECK
      • Vars
        • R(g);P_SPINR(g)::S(E)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • R(g);N_GUARD,XS(D)::S(E)
      • R(g);N_GUARD::S(E),XR(g)
      • R(g);N_GUARD::S(E)
      • S(f);N_GUARD,S_CUTR(g)::QAB(F),XP(i)
      • S(f);OGATE::QAR2(F)
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