MESON Chess Problem Database

Problem Display
PID: 287293 (6K1/4pQ2/6n1/3Np2p/R1bkpnRr/Bp1p4/N2P4/2r5 w - - 0 1)

Nikoletic, Vukota

Mat, 1987

6K1/4pQ2/6n1/3Np2p/R1bkpnRr/Bp1p4/N2P4/2r5

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.dxc3#
  • Tries
    • 1.Sdc3?
      • threat
        • 2.Sb5#
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Sd5
        • 2.Sb5#
        • 2.Qxd5#
      • 1...Se6
        • 2.Qf2#
      • 1...e3
        • 2.Rxc4#
        • 2.Qxc4#
        • 2.Qd5#
      • 1...e6
        • 2.Qa7#
      • 1...Rxc3!
    • 1.Se3?
      • threat
        • 2.Sf5#
      • 1...e6
        • 2.Qa7#
      • 1...Se6!
    • 1.Sc7?
      • threat
        • 2.Sb5#
      • 1...e3
        • 2.Qd5#
      • 1...Se6
        • 2.Qf2#
      • 1...e6!
    • 1.Sxe7?
      • threat
        • 2.Sf5#
        • 2.Sc6#
      • 1...e3
        • 2.Qd5#
      • 1...Se6
        • 2.Qf2#
      • 1...Sxe7+!
  • Keys
    • 1.Sac3!
      • threat
        • 2.Sb5#
      • 1...Rxc3
        • 2.dxc3#
      • 1...Se6
        • 2.Qf2#
      • 1...e3
        • 2.dxe3#
      • 1...e6
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::P(B),XR(a)
  • Tries
    • Try
      • S(F);P_SPINQ(G)
      • Threat
        • DUALS(3)
      • Vars
        • S(g);N_PINQ(G),P_SPINP(f)::QAB(G)
        • P(l);N_PINQ(G)::QAB(G)
      • Refutation
        • R(a);XS(F)
    • Try
      • S(F);P_SPINQ(G)
      • Threat
        • S(F)
      • Vars
        • P(l);N_PINQ(G)::QAB(G)
      • Refutation
        • S(g);N_PINQ(G),P_SPINP(f)
    • Try
      • S(F);P_SPINQ(G)
      • Threat
        • S(F)
      • Vars
        • P(f);P_SPINS(g)::QAR1(G)
        • S(g);N_PINQ(G),P_SPINP(f)::QAB(G)
      • Refutation
        • P(l);N_PINQ(G)
    • Try
      • S(F);P_SPINQ(G),XP(l)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);P_SPINS(g)::QAR1(G)
        • S(g);N_PINQ(G),P_SPINP(f)::QAB(G)
      • Refutation
        • S(k);CHECK,XS(F)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • R(a);OGATE,XS(A)::P(B),XR(a)
      • S(g);OGATE,P_SPINP(f)::QAB(G)
      • P(f);OGATE,P_SPINS(g)::P(B),XP(f)
      • P(l);OGATE::QAB(G)
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