MESON Chess Problem Database

Problem Display
PID: 15362 (8/8/3P2R1/K2k3B/4N3/4Q3/8/8 w - - 0 1)

Lebedinets, Nikolai Grigorevich

HM., Vecherni Kharkov, 1982

8/8/3P2R1/K2k3B/4N3/4Q3/8/8

#2

6 + 1

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...Kc6
        • 2.Bf3#
      • 1...Kc4!
    • 1.Sf6+?
      • 1...Kc4
        • 2.Be2#
        • 2.Rg4#
      • 1...Kc6
        • 2.Qb6#
      • 1...Kxd6!
    • 1.Bg4?
      • 1...Kc4
        • 2.Be6#
      • 1...Ke5
        • 2.Sc3#
        • 2.Rg5#
      • 1...Kc6!
    • 1.Rg5+?
      • 1...Kc4
        • 2.Sd2#
        • 2.Be2#
        • 2.Bf7#
        • 2.Rc5#
        • 2.Qc3#
      • 1...Ke6
        • 2.Qh3#
      • 1...Kc6!
    • 1.Qd3+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Sd2#
        • 2.Qc5#
      • 1...Kc4
        • 2.Sd2#
      • 1...Ke5
        • 2.Sg3#
      • 1...Kc6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XP(E)
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT::S(B)
      • K(a);P-FLIGHT::QAR(A)+S(B)
      • K(a);S_FLIGHT::B(D)+S(B)
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