MESON Chess Problem Database

Problem Display
PID: 134784 (8/1B2p1P1/7K/5k2/3Q4/6n1/8/8 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 2009

8/1B2p1P1/7K/5k2/3Q4/6n1/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.g8Q?
      • threat
        • 2.Qf7#
        • 2.Qgg4#
        • 2.Qg6#
      • 1...e5
        • 2.Qf2#
        • 2.Qf7#
        • 2.Qg6#
      • 1...Sh5
        • 2.Qgg4#
        • 2.Qg6#
      • 1...Se4!
  • Keys
    • 1.g8S!
      • 1...Ke6
        • 2.Qd5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Sh5
        • 2.Qe4#
      • 1...e5
        • 2.Bc8#
      • 1...e6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);
  • Actual
    • P(D);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);N_GUARD::QAB1(A)
      • P(c);N_GUARD::B(C)
      • P(c);SBLOCK::S(D)
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