MESON Chess Problem Database

Problem Display
PID: 27869 (2b5/1kp3K1/2N5/8/R1R2Q2/8/8/8 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

2b5/1kp3K1/2N5/8/R1R2Q2/8/8/8

#2

5 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • threat
        • 2.Rcb4#
        • 2.Qxc7#
      • 1...Kb6
        • 2.Qxc7#
      • 1...Kb8
        • 2.Qxc7#
      • 1...Bh3
        • 2.Qxc7#
      • 1...Bg4
        • 2.Qxc7#
      • 1...Bf5
        • 2.Qxc7#
      • 1...Be6
        • 2.Qxc7#
      • 1...Bd7
        • 2.Qxc7#
      • 1...c6
        • 2.Rcb4#
      • 1...c5!
    • 1.Sd8+?
      • 1...Kb8
        • 2.Qxc7#
      • 1...Kb6!
    • 1.Rab4+?
      • 1...Ka8
        • 2.Rb8#
      • 1...Ka6!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qb4#
      • 1...Kb6
        • 2.Qb4#
      • 1...Bh3
        • 2.Qb8#
      • 1...Bg4
        • 2.Qb8#
      • 1...Bf5
        • 2.Qb8#
      • 1...Be6
        • 2.Qb8#
      • 1...Bd7
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAB1(C),XP(b)
        • K(a);P-FLIGHT,P_SPINP(b)::QAB1(C),XP(b)
        • B(c);::QAR1(C),XP(b)
        • P(b);::R(B)
      • Refutation
        • P(b);
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAB1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • B(c);OGATE::QAR1(C)
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