MESON Chess Problem Database

Problem Display
PID: 15414 (8/8/4pN2/8/8/2Q2N2/6k1/4K2R w K - 0 1)

Mikhailov, Anatoly Mikhailovich

Shakhmaty v SSSR, 1983

8/8/4pN2/8/8/2Q2N2/6k1/4K2R

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2+?
      • 1...Kxh1
        • 2.Qh2#
      • 1...Kxf3
        • 2.Qf2#
      • 1...Kg3!
    • 1.Qd2+?
      • 1...Kxh1
        • 2.Qh2#
      • 1...Kxf3
        • 2.Rh3#
        • 2.Qf2#
      • 1...Kg3!
    • 1.Qd4?
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kxf3
        • 2.Qf2#
      • 1...Kg3
        • 2.Qg4#
      • 1...e5!
    • 1.Qc2+?
      • 1...Kxh1
        • 2.Qh2#
      • 1...Kxf3
        • 2.Qf2#
      • 1...Kg3!
    • 1.Qe3?
      • 1...Kxh1
        • 2.Qg1#
      • 1...Kg3
        • 2.Sh4#
      • 1...e5!
  • Keys
    • 1.Qe5!
      • 1...Kxh1
        • 2.Qh2#
      • 1...Kxf3
        • 2.0-0#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(B)::QAR1(C)
        • K(a);S_FLIGHT,XS(D)::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(B)::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT,XR(B)::QAR1(C)
        • K(a);S_FLIGHT,XS(D)::QAR1(C)
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(B)::QAR1(C)
        • K(a);S_FLIGHT,XS(D)::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT,XR(B)::QAR1(C)
        • K(a);P-FLIGHT::QAR(C)+S(D)
      • Refutation
        • P(b);
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAR1(C)
      • K(a);S_FLIGHT,XS(D)::0-0
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