MESON Chess Problem Database

Problem Display
PID: 257835 (3k4/3P4/2nQ4/8/5K2/3R4/7B/8 w - - 0 1)

Labai, Zoltan

3rd Comm., Salai (Sr)-70 JT (Umenie 64), 2004

3k4/3P4/2nQ4/8/5K2/3R4/7B/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.Qb6#
  • Tries
    • 1.Rc3?
      • 1...Sd4
        • 2.Rc8#
      • 1...Sb4
        • 2.Rc8#
      • 1...Sa5
        • 2.Rc8#
      • 1...Se5
        • 2.Rc8#
      • 1...Se7
        • 2.Qc7#
      • 1...Sb8
        • 2.Rc8#
      • 1...Sa7!
    • 1.Qf6+?
      • 1...Se7
        • 2.Qb6#
      • 1...Kc7!
  • Keys
    • 1.Bg3!
      • 1...Sd4
        • 2.Bh4#
      • 1...Sb4
        • 2.Bh4#
      • 1...Sa5
        • 2.Bh4#
      • 1...Se5
        • 2.Bh4#
      • 1...Sa7
        • 2.Bh4#
      • 1...Se7
        • 2.Qb6#
      • 1...Sb8
        • 2.Bh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,SBLOCK::QAB(D)
  • Tries
    • Try
      • R(B);
      • Vars
        • S(a);OGATE::R1(B)
        • S(a);SBLOCK::QAB1(D)
      • Refutation
        • S(a);
    • Try
      • Q(D);CHECK
      • Vars
        • S(a);OGATE,P_SPINS(a),SBLOCK::QAB(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • S(a);N_GUARD::B(A)
      • S(a);OGATE,SBLOCK::QAB(D)
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