MESON Chess Problem Database

Problem Display
PID: 264854 (2K5/1B1Q4/1p6/k7/1p6/1p6/8/8 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

The Problemist, 1993

2K5/1B1Q4/1p6/k7/1p6/1p6/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bh1?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Bg2?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Bf3?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Be4?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Bd5?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Ba8?
      • 1...Ka6
        • 2.Qa4#
      • 1...b5
        • 2.Qa7#
      • 1...b2!
    • 1.Qc6?
      • 1...b5
        • 2.Qa6#
      • 1...b2!
    • 1.Qd3?
      • threat
        • 2.Qa6#
      • 1...Ka4
        • 2.Qa6#
      • 1...b5!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Qb5#
      • 1...Kxa6
        • 2.Qa4#
      • 1...b5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAR2(B)
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • P(d);OGATE::QAR1(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);P-FLIGHT::QAR2(B)
      • Refutation
        • P(d);
  • Actual
    • B(A);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);N_GUARD,P-FLIGHT,XB(A)::QAR2(B)
      • P(d);::QAR1(B),XP(d)
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