MESON Chess Problem Database

Problem Display
PID: 27424 (8/8/8/n7/3p4/2k5/Q1P5/2NK4 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

8/8/8/n7/3p4/2k5/Q1P5/2NK4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Qxb3#
    • 1...Sc4
      • 2.Qb3#
    • 1...Sc6
      • 2.Qb3#
    • 1...Sb7
      • 2.Qb3#
  • Tries
    • 1.Qa3+?
      • 1...Sb3
        • 2.Qxb3#
      • 1...Kc4!
  • Keys
    • 1.Sd3!
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sc4
        • 2.Qb3#
      • 1...Sc6
        • 2.Qb3#
      • 1...Sb7
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAR1(C),XS(c)
    • S(c);N_GUARD::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR1(C),XS(c)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(A);
    • Vars
      • S(c);N_GUARD::QAR1(C),XS(c)
      • S(c);N_GUARD::QAR1(C)
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