MESON Chess Problem Database

Problem Display
PID: 27561 (3B3K/8/8/1b6/1k6/6R1/1P1N4/3Q4 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

3B3K/8/8/1b6/1k6/6R1/1P1N4/3Q4

#2

6 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rb3+?
      • 1...Ka4
        • 2.Qa1#
      • 1...Kc5!
    • 1.Qg4+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...Kc5!
    • 1.Qh5?
      • 1...Bf1
        • 2.Qa5#
      • 1...Be2
        • 2.Qa5#
      • 1...Bd3
        • 2.Qa5#
      • 1...Ba4
        • 2.Ba5#
        • 2.Be7#
        • 2.Rg4#
        • 2.Qa5#
      • 1...Bc4
        • 2.Qa5#
      • 1...Ba6
        • 2.Qa5#
      • 1...Bc6
        • 2.Qa5#
      • 1...Bd7
        • 2.Qa5#
      • 1...Be8
        • 2.Rg4#
        • 2.Qa5#
      • 1...Ka4!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Qb3#
      • 1...Ba4
        • 2.Ba5#
        • 2.Be7#
        • 2.Qg4#
      • 1...Bc4
        • 2.Ba5#
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(A),XB(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • B(b);OGATE::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);
    • Threat
      • QAR1(A)
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Developed and maintained by Brian Stephenson.
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