MESON Chess Problem Database

Problem Display
PID: 258675 (b7/rp3R1B/pPP5/K2k4/3P4/8/5P1B/3R4 w - - 0 1)

Pringle, TA

English Mechanic and World of Science, 1904

(First published on Fri Dec 23 1904)

b7/rp3R1B/pPP5/K2k4/3P4/8/5P1B/3R4

#2

9 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Be4#
  • Tries
    • 1.Re7?
      • 1...Kxc6
        • 2.Be4#
      • 1...bxc6
        • 2.Bg8#
      • 1...Kc4!
  • Keys
    • 1.Bg8!
      • 1...Kc4
        • 2.Rf3#
      • 1...Ke4
        • 2.Rf4#
      • 1...Kxc6
        • 2.Rc7#
      • 1...Ke6
        • 2.d5#
      • 1...bxc6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT,XP(G)::B(I)
  • Tries
    • Try
      • R(H);
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XP(G)::B(I)
        • P(d);SBLOCK,XP(G)::B(I)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(I);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(I)+R(H)
      • K(a);N_GUARD,S_FLIGHT::R1(H)
      • K(a);N_GUARD,S_FLIGHT,XP(G)::R1(H)
      • K(a);OGATE,S_FLIGHT::P(D)
      • P(d);SBLOCK,XP(G)::B(I)+R(H)
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