MESON Chess Problem Database

Problem Display
PID: 162852 (8/3N3Q/1p1kB3/8/3NK3/8/8/8 w - - 0 1)

Smirnov, Valery Gennadevich

Sachmatija, 2003

8/3N3Q/1p1kB3/8/3NK3/8/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • 1...Kc5
        • 2.Qe7#
      • 1...b5!
    • 1.Sf6?
      • 1...Kc5
        • 2.Qe7#
      • 1...b5!
    • 1.Sb8?
      • 1...Kc5
        • 2.Qe7#
      • 1...b5!
    • 1.Sf8?
      • 1...Kc5
        • 2.Qe7#
      • 1...b5!
    • 1.Bd5?
      • threat
        • 2.Sb5#
      • 1...b5
        • 2.Sxb5#
      • 1...Kc7!
    • 1.Qf5?
      • 1...Ke7
        • 2.Qf8#
      • 1...b5
        • 2.Qc5#
      • 1...Kc7!
    • 1.Qg8?
      • 1...Kc7
        • 2.Qb8#
      • 1...Ke7
        • 2.Sf5#
        • 2.Qf8#
      • 1...b5!
    • 1.Qh8?
      • 1...Kc7
        • 2.Qb8#
      • 1...Ke7
        • 2.Qf8#
      • 1...b5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sb7#
      • 1...Kxc5
        • 2.Qe7#
      • 1...bxc5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • P(a);
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • P(a);
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • P(a);
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAB(E)
      • Refutation
        • P(a);
    • Try
      • B(C);
      • Threat
        • S(A)
      • Vars
        • P(a);::S(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • P(a);N_GUARD::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • P(a);
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • P(a);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(b);S_FLIGHT,XS(D)::QAB(E)
      • P(a);SBLOCK,XS(D)::QAR1(E)
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