MESON Chess Problem Database

Problem Display
PID: 15367 (8/8/3B4/Q7/8/2P1N3/3k4/5BK1 w - - 0 1)

Fedorin, V

Sp. HM., Vecherni Kharkov, 1982

8/8/3B4/Q7/8/2P1N3/3k4/5BK1

#2

6 + 1

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Ke1
      • 2.c4#
  • Tries
    • 1.Ba3?
      • 1...Ke1
        • 2.c4#
      • 1...Kxe3!
    • 1.Bf4?
      • 1...Ke1
        • 2.c4#
      • 1...Kc1!
    • 1.Bc5?
      • 1...Ke1
        • 2.c4#
      • 1...Kc1!
    • 1.Qb4?
      • 1...Ke1
        • 2.c4#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kc1!
    • 1.Qa2+?
      • 1...Kc1
        • 2.Ba3#
        • 2.Qc2#
      • 1...Ke1
        • 2.Bg3#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Kxe3
        • 2.Qe2#
      • 1...Kxc3!
    • 1.Qa3?
      • 1...Ke1
        • 2.Qc1#
      • 1...Kxe3!
    • 1.Qb5?
      • 1...Ke1
        • 2.Qe2#
      • 1...Kxc3
        • 2.Qb4#
      • 1...Kxe3
        • 2.Qe2#
        • 2.Qd3#
      • 1...Kc1!
    • 1.Qf5?
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1
        • 2.Qf2#
      • 1...Kxe3
        • 2.Qd3#
        • 2.Qf4#
      • 1...Kxc3!
  • Keys
    • 1.Qa4!
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1
        • 2.Qd1#
      • 1...Kxc3
        • 2.Qb4#
      • 1...Kxe3
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(E)+P(C)
  • Tries
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAB(E)+P(C)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAB(E)+P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAB(E)+P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)+P(C)
        • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XP(C)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);OGATEB,S_FLIGHT,XP(C)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XP(C)
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);OGATEB,S_FLIGHT,XP(C)::QAB1(E)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(E)
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