MESON Chess Problem Database

Problem Display
PID: 23820 (8/5b2/5Q2/3k4/1K4B1/6N1/3n4/8 w - - 0 1)

Lincoln, Robert A

Australian Chess Problem Magazine, 1997

8/5b2/5Q2/3k4/1K4B1/6N1/3n4/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Bf3#
    • 1...Sf1
      • 2.Bf3#
    • 1...Sb3
      • 2.Bf3#
    • 1...Sf3
      • 2.Bxf3#
    • 1...Sc4
      • 2.Bf3#
  • Tries
    • 1.Bf3+?
      • 1...Se4
        • 2.Bxe4#
      • 1...Sxf3!
  • Keys
    • 1.Se2!
      • threat
        • 2.Sc3#
      • 1...Ke4
        • 2.Qd4#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sb1
        • 2.Bf3#
      • 1...Se4
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::B(C)
    • S(a);N_GUARD::B(C),XS(a)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(C),XS(a)
      • Refutation
        • S(a);XB(C)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • K(b);S_FLIGHT::QAR1(D)
      • B(c);N_GUARD::QAB1(D),XB(c)
      • S(a);N_GUARD::B(C)
      • S(a);SBLOCK::S(A)
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