MESON Chess Problem Database

Problem Display
PID: 147053 (nKR5/7B/3pp3/1n1kN2p/r2p2R1/BP1N2b1/8/7q w - - 0 1)

Lincoln, Robert A

Australian Chess Problem Magazine, 1995

nKR5/7B/3pp3/1n1kN2p/r2p2R1/BP1N2b1/8/7q

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Bxe4#
    • 1...Qa1
      • 2.Be4#
    • 1...Qb1
      • 2.Be4#
    • 1...Qc1
      • 2.Be4#
    • 1...Qd1
      • 2.Be4#
    • 1...Qf1
      • 2.Be4#
    • 1...Qg1
      • 2.Be4#
    • 1...Qh2
      • 2.Be4#
    • 1...Qh3
      • 2.Be4#
    • 1...Qh4
      • 2.Be4#
    • 1...Rc4
      • 2.bxc4#
  • Tries
    • 1.Sg6?
      • threat
        • 2.Se7#
      • 1...e5
        • 2.Bg8#
      • 1...Ra7
        • 2.Sb4#
      • 1...Bh4
        • 2.Sgf4#
      • 1...Qh4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...e5
        • 2.Bg8#
      • 1...Qh4
        • 2.Be4#
      • 1...Ra7
        • 2.Scb4#
      • 1...Bh4
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::B(F),XQ(a)
    • Q(a);N_GUARD::B(F)
    • R(c);OGATE::P(B),XR(c)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(i);OGATEB::B(F)
        • R(c);N_GUARD::S(C)
        • B(b);N_GUARD::S(E)
      • Refutation
        • Q(a);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • P(i);OGATEB::B(F)
      • Q(a);N_GUARD::B(F)
      • R(c);N_GUARD::S(E)
      • B(b);N_GUARD::S(C)
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