MESON Chess Problem Database

Problem Display
PID: 258623 (2B5/7K/2P3R1/4p3/R1N1k3/4B3/3P4/8 w - - 0 1)

Williams, Albert H

English Mechanic and World of Science, 1901

(First published on Fri Mar 29 1901)

2B5/7K/2P3R1/4p3/R1N1k3/4B3/3P4/8

#2

8 + 2

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sb6#
  • Tries
    • 1.Bg4?
      • 1...Kd5
        • 2.Sb6#
      • 1...Kd3!
    • 1.Bf5+?
      • 1...Kd5
        • 2.Sb6#
        • 2.Rd6#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Kf3!
    • 1.Rf6?
      • 1...Kd5
        • 2.Sb6#
      • 1...Kd3!
  • Keys
    • 1.Ba6!
      • 1...Kd3
        • 2.Sa3#
      • 1...Kf3
        • 2.Sxe5#
      • 1...Kd5
        • 2.Sb6#
      • 1...Kf5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::S(D)
  • Tries
    • Try
      • B(H);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(H);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XB(H)::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(H);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(H)+S(D)
      • K(a);N_GUARD,S_FLIGHT::S(D),XP(b)
      • K(a);N_GUARD,S_FLIGHT::S(D)
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