MESON Chess Problem Database

Problem Display
PID: 2741 (3N4/4B2K/4p3/4p3/4kn2/7P/BP3Q2/8 w - - 0 1)

Thursby, John Ormerod Scarlett

Preston Guardian, 1881

(First published on Wed Sep 28 1881)

3N4/4B2K/4p3/4p3/4kn2/7P/BP3Q2/8

#2

7 + 4

3357 75 Chess Problems 1883
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Bb1#
  • Tries
    • 1.Bb1+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Sd3!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf5
        • 2.Bxe6#
      • 1...Kxf3!
  • Keys
    • 1.Sb7!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf5
        • 2.Sd6#
      • 1...Sxh3
        • 2.Sc5#
      • 1...Se2
        • 2.Sc5#
      • 1...Sg2
        • 2.Sc5#
      • 1...Sd3
        • 2.Sd6#
      • 1...Sd5
        • 2.Sc5#
        • 2.Bb1#
      • 1...Sh5
        • 2.Sc5#
      • 1...Sg6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD,SBLOCK::B(A)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::S(G)
        • K(a);P_SPINS(b),S_FLIGHT::B(A),XP(d)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • S(G);
    • Vars
      • K(a);S_FLIGHT::S(G)
      • K(a);P_SPINS(b),S_FLIGHT::S(G)
      • S(b);XP(D)::S(G)
      • S(b);::S(G)
      • S(b);SBLOCK::S(G)
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