MESON Chess Problem Database

Problem Display
PID: 135632 (8/8/2B5/8/8/8/bPkP4/Q3K3 w - - 0 1)

Lincoln, Robert A

StrateGems, 2010

8/8/2B5/8/8/8/bPkP4/Q3K3

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3
      • 2.Be4#
  • Tries
    • 1.Qc1+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kd3
        • 2.Qc3#
      • 1...Kxc1!
  • Keys
    • 1.b3!
      • 1...Kxb3
        • 2.Qc3#
      • 1...Kd3
        • 2.Qc3#
      • 1...Bxb3
        • 2.Be4#
      • 1...Bb1
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::B(E)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • P(C);
    • Vars
      • K(b);S_FLIGHT,XP(C)::QAR1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • B(a);SBLOCK,XP(C)::B(E)
      • B(a);SBLOCK::QAR1(A)
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