MESON Chess Problem Database

Problem Display
PID: 103958 (8/5pBk/2Q4P/8/2B4K/8/8/8 w - - 0 1)

Alexan, Vladimir Alexandrov

Kudesnik, 1991

8/5pBk/2Q4P/8/2B4K/8/8/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bd3+?
      • 1...Kg8
        • 2.Qa8#
        • 2.Qe8#
        • 2.Qc8#
      • 1...f5!
    • 1.Qe4+?
      • 1...f5
        • 2.Qxf5#
      • 1...Kg8!
    • 1.Qc8?
      • 1...f5
        • 2.Qxf5#
      • 1...f6
        • 2.Qf5#
      • 1...Kg6!
  • Keys
    • 1.Qe8!
      • 1...Kg6
        • 2.Bd3#
      • 1...f5
        • 2.Bg8#
      • 1...f6
        • 2.Bg8#

FEATURES

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