MESON Chess Problem Database

Problem Display
PID: 38880 (5B2/8/1Kn5/8/k3b3/1p6/3Q4/8 w - - 0 1)

Lincoln, Robert A

Smena, 1996

5B2/8/1Kn5/8/k3b3/1p6/3Q4/8

#2

3 + 4

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Qxb4#
    • 1...Sd4
      • 2.Qb4#
      • 2.Qa5#
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qb4#
      • 2.Qxa5#
    • 1...Se5
      • 2.Qb4#
      • 2.Qa5#
    • 1...Sa7
      • 2.Qb4#
      • 2.Qa5#
      • 2.Qd4#
    • 1...Se7
      • 2.Qa5#
    • 1...Sb8
      • 2.Qb4#
      • 2.Qa5#
      • 2.Qd4#
    • 1...Sd8
      • 2.Qb4#
      • 2.Qa5#
      • 2.Qd4#
  • Tries
    • 1.Qd4+?
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sxd4!
    • 1.Qd6?
      • threat
        • 2.Qa3#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Se7!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qa1#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Se7
        • 2.Qa5#
      • 1...Bb1
        • 2.Qxc6#
      • 1...b2
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAR1(A),XS(d)
    • S(d);N_GUARD::QAR1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAR1(A),XS(d)
      • Refutation
        • S(d);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(d);N_GUARD::QAR1(A),XS(d)
      • Refutation
        • S(d);
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • S(d);N_GUARD::QAR1(A),XS(d)
      • S(d);N_GUARD::QAR1(A)
      • B(c);N_GUARD::QAB(A),XS(d)
      • P(a);OGATE::QAR1(A)
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