MESON Chess Problem Database

Problem Display
PID: 135913 (8/8/8/pk3BQ1/N7/8/K7/8 w - - 0 1)

Mironenko, Nikolai Ivanovich

Springaren, 2009

8/8/8/pk3BQ1/N7/8/K7/8

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Bd3+?
      • 1...Kxa4
        • 2.Qf4#
        • 2.Qh4#
        • 2.Qg4#
        • 2.Qb5#
      • 1...Kb4
        • 2.Qf4#
        • 2.Qh4#
        • 2.Qg4#
        • 2.Qb5#
      • 1...Kc6!
    • 1.Qe3?
      • 1...Kxa4
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kc6!
  • Keys
    • 1.Qe7!
      • 1...Kxa4
        • 2.Bd7#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka6
        • 2.Bd3#
      • 1...Kc6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAB1(D)
        • K(b);P-FLIGHT::QAR1(D)
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(b);S_FLIGHT,XS(B)::B(C)
      • K(b);S_FLIGHT::QAR1(D)
      • K(b);S_FLIGHT::B(C)
      • K(b);S_FLIGHT::QAB1(D)
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