MESON Chess Problem Database

Problem Display
PID: 27653 (3K4/8/5B2/8/6p1/2R5/kp6/7Q w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

3K4/8/5B2/8/6p1/2R5/kp6/7Q

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rd3?
      • 1...b1Q
        • 2.Qa8#
      • 1...b1S
        • 2.Qd5#
      • 1...b1B
        • 2.Qd5#
        • 2.Qa8#
      • 1...b1R
        • 2.Qa8#
      • 1...g3!
    • 1.Re3?
      • 1...b1Q
        • 2.Qa8#
      • 1...b1S
        • 2.Qd5#
      • 1...b1B
        • 2.Qd5#
        • 2.Qa8#
      • 1...b1R
        • 2.Qa8#
      • 1...g3!
    • 1.Qd5+?
      • 1...Ka1
        • 2.Rc1#
      • 1...Kb1!
  • Keys
    • 1.Rg3!
      • 1...b1Q
        • 2.Qa8#
      • 1...b1S
        • 2.Qd5#
      • 1...b1B
        • 2.Qd5#
        • 2.Qa8#
      • 1...b1R
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK::QAR(A)
        • P(b);SBLOCK::QAB(A)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK::QAR(A)
        • P(b);SBLOCK::QAB(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • P(b);SBLOCK::QAR(A)
      • P(b);SBLOCK::QAB(A)
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