MESON Chess Problem Database

Problem Display
PID: 46380 (1N6/1p6/6K1/1Nk5/8/8/6Q1/5B2 w - - 0 1)

Bantysh, Nikolai Ivanovich

Die Schwalbe, 1999

1N6/1p6/6K1/1Nk5/8/8/6Q1/5B2

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Sa6#
  • Tries
    • 1.Qf3?
      • 1...Kb4
        • 2.Qa3#
      • 1...b6
        • 2.Sa6#
      • 1...Kb6!
    • 1.Qc2+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kb6
        • 2.Qc7#
      • 1...Kb4!
    • 1.Qf2+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kb4!
    • 1.Qg3?
      • threat
        • 2.Qd6#
      • 1...Kb4
        • 2.Qa3#
      • 1...Kb6
        • 2.Qc7#
      • 1...Kd5!
    • 1.Qg4?
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qf5#
      • 1...Kb6!
  • Keys
    • 1.Qa2!
      • 1...Kb4
        • 2.Qa3#
      • 1...Kb6
        • 2.Qa7#
      • 1...b6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD,SBLOCK::S(E)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • P(b);N_GUARD,SBLOCK::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::QAR1(B)
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