MESON Chess Problem Database

Problem Display
PID: 47966 (1K4n1/P6p/R3N1br/4k3/4P1rp/2n1P1Pq/1N3Q2/8 w - - 0 1)

Kovalenko, Vitaly Semenovich

Probleemblad, 2003

1K4n1/P6p/R3N1br/4k3/4P1rp/2n1P1Pq/1N3Q2/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Qf4#
    • 1...Rf4
      • 2.Qxf4#
    • 1...Rg5
      • 2.Qf4#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bh5
      • 2.Qf5#
    • 1...Bf7
      • 2.Qf5#
    • 1...Be8
      • 2.Qf5#
  • Tries
    • 1.a8Q?
      • threat
        • 2.Sd3#
        • 2.Sc4#
      • 1...Rxe4
        • 2.Sd3#
      • 1...Bxe4
        • 2.Sc4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Qf1!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Re6#
      • 1...Kxe4
        • 2.Re6#
      • 1...Rxg3
        • 2.Qf4#
      • 1...Rxe4
        • 2.Sd3#
      • 1...Bxe4
        • 2.Sc4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Rg5
        • 2.Qf4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bh5
        • 2.Qf5#
      • 1...Bf7
        • 2.Qf5#
      • 1...Be8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,XP(D)::QAB1(B)
    • R(c);N_GUARD::QAB1(B),XR(c)
    • R(c);N_GUARD::QAB1(B)
    • B(f);N_GUARD::QAR1(B),XB(f)
    • B(f);N_GUARD::QAR1(B)
  • Tries
    • Try
      • P(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XP(E)::S(A)
        • B(f);XP(E)::S(A)
        • R(c);N_GUARD::QAB1(B),XR(c)
        • B(f);N_GUARD::QAR1(B),XB(f)
        • S(a);N_GUARD::QAR1(H),XS(a)
      • Refutation
        • Q(b);
  • Actual
    • S(G);
    • Threat
      • R1(F)
    • Vars
      • K(e);P-FLIGHT,XP(E)::R(F)
      • R(c);N_GUARD,XP(D)::QAB1(B)
      • R(c);SBLOCK,XP(E)::S(A)
      • B(f);SBLOCK,XP(E)::S(A)
      • R(c);N_GUARD::QAB1(B),XR(c)
      • R(c);N_GUARD::QAB1(B)
      • B(f);N_GUARD::QAR1(B),XB(f)
      • B(f);N_GUARD::QAR1(B)
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