MESON Chess Problem Database

Problem Display
PID: 39787 (kbr5/3N4/K7/8/Q1n5/8/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

kbr5/3N4/K7/8/Q1n5/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6+
      • 2.Qxc6#
    • 1...Rd8
      • 2.Qc6#
    • 1...Re8
      • 2.Qc6#
    • 1...Rf8
      • 2.Qc6#
    • 1...Rg8
      • 2.Qc6#
    • 1...Rh8
      • 2.Qc6#
    • 1...Bc7
      • 2.Qc6#
    • 1...Sb2
      • 2.Sb6#
    • 1...Sd2
      • 2.Sb6#
    • 1...Sa3
      • 2.Sb6#
    • 1...Se3
      • 2.Sb6#
    • 1...Sa5
      • 2.Sb6#
    • 1...Se5
      • 2.Sb6#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sd6
      • 2.Sb6#
  • Tries
    • 1.Qb3?
      • threat
        • 2.Qb7#
      • 1...Rc7
        • 2.Qxb8#
      • 1...Sa5
        • 2.Sb6#
      • 1...Sb6
        • 2.Sxb6#
      • 1...Sd6
        • 2.Sb6#
      • 1...Rc6+!
    • 1.Qb4?
      • threat
        • 2.Qb7#
      • 1...Rc7
        • 2.Qxb8#
      • 1...Sa5
        • 2.Sb6#
      • 1...Sb6
        • 2.Sxb6#
      • 1...Sd6
        • 2.Sb6#
      • 1...Rc6+!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qb7#
      • 1...Rc6+
        • 2.Qxc6#
      • 1...Rc7
        • 2.Qxb8#
      • 1...Sa5
        • 2.Sb6#
      • 1...Sb6
        • 2.Sxb6#
      • 1...Sd6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(d);CHECK,N_GUARD::QAB(A),XR(d)
    • R(d);N_GUARD::QAB(A)
    • R(d);N_GUARD,SBLOCK::QAB(A)
    • B(c);S_CUTR(d)::QAB(A)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(d);N_GUARD::QAR1(A),XB(c)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • R(d);CHECK
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(d);N_GUARD::QAR1(A),XB(c)
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • R(d);CHECK
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • R(d);CHECK,N_GUARD::QAB(A),XR(d)
      • R(d);N_GUARD::QAR1(A),XB(c)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
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