MESON Chess Problem Database

Problem Display
PID: 22920 (Q2K4/3N1k2/4N3/4p3/4B3/8/8/8 w - - 0 1)

Vulvfovich, I

1st HM., Hlas l'udu, 1969

Q2K4/3N1k2/4N3/4p3/4B3/8/8/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qd5#
    • 1...Kg8
      • 2.Ke7#
  • Tries
    • 1.Kc7?
      • 1...Kxe6
        • 2.Qe8#
      • 1...Ke7!
    • 1.Sdc5?
      • 1...Kg8
        • 2.Ke7#
      • 1...Kf6!
    • 1.Bf5?
      • 1...Kg8
        • 2.Ke7#
      • 1...e4!
    • 1.Bg6+?
      • 1...Kxe6
        • 2.Qc6#
      • 1...Kg8
        • 2.Kc7#
        • 2.Ke7#
      • 1...Kxg6!
    • 1.Qb7?
      • 1...Kxe6
        • 2.Qd5#
      • 1...Kg8!
    • 1.Qa5?
      • 1...Kxe6
        • 2.Qd5#
      • 1...Kg8!
    • 1.Qb8?
      • 1...Kg8
        • 2.Ke7#
      • 1...Kxe6!
    • 1.Qc8?
      • 1...Kg8
        • 2.Ke7#
      • 1...Kxe6!
  • Keys
    • 1.Qa3!
      • 1...Kxe6
        • 2.Qe7#
      • 1...Kg8
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(D)
    • K(b);S_FLIGHT::QAR(D)+K(E)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(D)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+K(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+K(E)
      • Refutation
        • P(a);
    • Try
      • B(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(D)
      • Refutation
        • K(b);S_FLIGHT,XB(A)
    • Try
      • Q(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+K(E)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(D);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+K(E)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • Q(D);
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAR1(D)
      • K(b);S_FLIGHT::QAR1(D)
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