MESON Chess Problem Database

Problem Display
PID: 148961 (8/3K4/5N2/1p4B1/2kN4/8/1Q6/8 w - - 0 1)

Lincoln, Robert A

The Problemist, 2012

8/3K4/5N2/1p4B1/2kN4/8/1Q6/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • 1...Kd3
        • 2.Se5#
      • 1...Kc5
        • 2.Qd4#
      • 1...b4!
    • 1.Sc6?
      • threat
        • 2.Qc2#
      • 1...Kd3
        • 2.Se5#
      • 1...Kc5
        • 2.Qd4#
      • 1...b4!
  • Keys
    • 1.Be3!
      • 1...Kd3
        • 2.Qb3#
      • 1...Kc5
        • 2.Qxb5#
      • 1...b4
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::S(B)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::S(B)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAR2(A)
      • K(a);P-FLIGHT::QAR1(A),XP(b)
      • P(b);SBLOCK::QAR2(A)
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