MESON Chess Problem Database

Problem Display
PID: 27868 (2b5/1kp3K1/2N5/8/R4Q2/8/8/8 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

2b5/1kp3K1/2N5/8/R4Q2/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd8+?
      • 1...Kb6
        • 2.Qb4#
      • 1...Kb8!
    • 1.Rb4+?
      • 1...Ka6
        • 2.Qf1#
        • 2.Qc4#
      • 1...Ka8
        • 2.Rb8#
      • 1...Kxc6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qb5#
        • 2.Qa6#
      • 1...Kb6
        • 2.Rb4#
      • 1...Bh3
        • 2.Qa6#
      • 1...Bg4
        • 2.Qa6#
      • 1...Bf5
        • 2.Qa6#
      • 1...Be6
        • 2.Qa6#
      • 1...Bd7
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • R(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::R(A)
      • B(c);::QAB1(B)
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