MESON Chess Problem Database

Problem Display
PID: 69520 (Q1n3b1/4p1Pp/1P1pk2K/p2N4/B5P1/5N2/8/8 w - - 0 1)

Slater, George James

The Chess Player's Chronicle (Sampson), 1877

Q1n3b1/4p1Pp/1P1pk2K/p2N4/B5P1/5N2/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.Sg5#
    • 1...Sxb6
      • 2.Qxg8#
    • 1...Sa7
      • 2.Qxg8#
  • Tries
    • 1.Bc6?
      • 1...Kf7
        • 2.Sg5#
      • 1...Sxb6
        • 2.Qxg8#
      • 1...Bf7
        • 2.Qxc8#
      • 1...Sa7
        • 2.Qxg8#
      • 1...a4!
    • 1.Bd7+?
      • 1...Kf7
        • 2.Sg5#
      • 1...Kxd7!
    • 1.Qxc8+?
      • 1...Kf7
        • 2.Sg5#
        • 2.Be8#
        • 2.Qf5#
      • 1...Kxd5!
  • Keys
    • 1.b7!
      • 1...Kxd5
        • 2.bxc8Q#
      • 1...Kf7
        • 2.Sg5#
      • 1...Bf7
        • 2.bxc8Q#
        • 2.bxc8B#
      • 1...Sb6
        • 2.Qxg8#
      • 1...Sa7
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(A)
    • S(f);OGATE,XP(E)::QAB(H),XB(g)
    • S(f);OGATE::QAB(H),XB(g)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(c);S_FLIGHT::S(A)
        • S(f);OGATE,XP(E)::QAB(H),XB(g)
        • B(g);SBLOCK::QAB(H),XS(f)
        • S(f);OGATE::QAB(H),XB(g)
      • Refutation
        • P(a);
    • Try
      • B(B);CHECK
      • Vars
        • K(c);S_FLIGHT::S(A)
      • Refutation
        • K(c);S_FLIGHT,XB(B)
    • Try
      • Q(H);CHECK,XS(f)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
  • Actual
    • P(E);
    • Vars
      • K(c);S_FLIGHT,XS(D)::PXS(f)=Q
      • K(c);S_FLIGHT::S(A)
      • B(g);SBLOCK::PXS(f)=Q
      • S(f);OGATE::QAB(H),XB(g)
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Developed and maintained by Brian Stephenson.
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