MESON Chess Problem Database

Problem Display
PID: 251853 (3B4/3prpR1/1Q1n4/3Nk3/2B3p1/2p1N1P1/8/7K w - - 0 1)

Tilsley, WB

Manchester Weekly Times, 1889

(First published on Sat Jul 27 1889)

3B4/3prpR1/1Q1n4/3Nk3/2B3p1/2p1N1P1/8/7K

#2

8 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Rxe7#
    • 1...f6
      • 2.Rxe7#
  • Tries
    • 1.Qd4+?
      • 1...Ke6
        • 2.Sf4#
        • 2.Sc7#
        • 2.Qf6#
      • 1...Kxd4!
  • Keys
    • 1.Sf6!
      • 1...Kxf6
        • 2.Qd4#
      • 1...Sxc4
        • 2.Rg5#
      • 1...Re6
        • 2.Qc5#
      • 1...Re8
        • 2.Qc5#
      • 1...Se4
        • 2.Sfxg4#
      • 1...Sb5
        • 2.Rg5#
      • 1...Sf5
        • 2.Sexg4#
      • 1...Sb7
        • 2.Rg5#
      • 1...Sc8
        • 2.Rg5#
      • 1...Se8
        • 2.Rg5#
      • 1...c2
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 2
  • Sets
    • P(g);OGATE::R(G),XR(f)
  • Tries
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(F)
  • Actual
    • S(E);
    • Vars
      • K(c);N_GUARD,P_SPINR(f),P_SPINS(d),S_FLIGHT,XS(E)::QAB(F)
      • S(d);N_GUARD,XB(D)::R(G)
      • R(f);::QAR2(F)
      • S(d);SBLOCK::S(E),XP(b)
      • S(d);N_GUARD::R(G)
      • S(d);SBLOCK::S(B),XP(b)
      • P(a);OGATEB::QAB(F)
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