MESON Chess Problem Database

Problem Display
PID: 100879 (N4bb1/3n4/2pk4/4R1N1/2P5/5QK1/8/8 w - - 0 1)

Corrias, Antonio G

Good Companions (May Meredith Ty.), 1917

N4bb1/3n4/2pk4/4R1N1/2P5/5QK1/8/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf4#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Bh7
      • 2.Sf7#
  • Tries
    • 1.Qf6+?
      • 1...Be6
        • 2.Se4#
        • 2.Sf7#
        • 2.Qxe6#
      • 1...Sxf6!
    • 1.Qxf8+?
      • 1...Kxe5
        • 2.Qf4#
      • 1...Sxf8!
  • Keys
    • 1.Qf7!
      • 1...Kxe5
        • 2.Qf4#
      • 1...Bxf7
        • 2.Sxf7#
      • 1...Sxe5
        • 2.Se4#
      • 1...c5
        • 2.Re6#
      • 1...Bh6
        • 2.Qe7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bg7
        • 2.Qe7#
      • 1...Bh7
        • 2.Qe6#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sb6
        • 2.Qc7#
      • 1...Sf6
        • 2.Qc7#
      • 1...Sb8
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
    • B(e);N_GUARD::S(E),XB(e)
    • B(e);N_GUARD::S(E)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • S(c);XQ(A)
    • Try
      • Q(A);CHECK,XB(d)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • B(e);XQ(A)::S(E),XB(e)
      • S(c);SBLOCK,XR(D)::S(E)
      • P(a);SBLOCK::R1(D)
      • B(d);N_GUARD::QAB1(A)
      • B(d);N_GUARD::QAB1(A),XB(d)
      • B(e);N_GUARD::QAR1(A)
      • S(c);OGATE::QAB1(A)
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Developed and maintained by Brian Stephenson.
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