MESON Chess Problem Database

Problem Display
PID: 47858 (B7/8/3P4/8/2k5/2p4Q/2N5/2K5 w - - 0 1)

Bantysh, Nikolai Ivanovich

Uralski Problemist, 2003

B7/8/3P4/8/2k5/2p4Q/2N5/2K5

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Bc6?
      • 1...Kb3
        • 2.Qe6#
      • 1...Kc5!
    • 1.Qg4+?
      • 1...Kb3
        • 2.Bd5#
      • 1...Kd3
        • 2.Qe4#
      • 1...Kc5
        • 2.Qb4#
      • 1...Kb5!
    • 1.Qh4+?
      • 1...Kb3
        • 2.Bd5#
      • 1...Kd3
        • 2.Qe4#
      • 1...Kc5
        • 2.Qb4#
      • 1...Kb5!
    • 1.Qh5?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qb5#
      • 1...Kb3!
  • Keys
    • 1.Qd7!
      • 1...Kb3
        • 2.Bd5#
      • 1...Kd3
        • 2.Qb5#
      • 1...Kc5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(E)
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(E)
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);S_FLIGHT::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::B(E)
      • K(b);S_FLIGHT::QAB(C)
      • K(b);P-FLIGHT::QAR1(C)
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