MESON Chess Problem Database

Problem Display
PID: 3043 (8/4Bnp1/4R2b/3K1kpB/3p4/8/4P1N1/8 w - - 0 1)

Harley, Brian

Morning Post, 1918

(First published on Mon May 6 1918)

8/4Bnp1/4R2b/3K1kpB/3p4/8/4P1N1/8

#2

6 + 6

2681 All Change Here! 1919
15290 Harley Scrapbook 2014
56 The Problemist 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Rxe5#
    • 1...Sd6
      • 2.Re5#
    • 1...Sd8
      • 2.Re5#
    • 1...Sh8
      • 2.Re5#
    • 1...d3
      • 2.e4#
    • 1...g4
      • 2.Bg6#
    • 1...g6
      • 2.Rf6#
  • Tries
    • 1.Bd8?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd6
        • 2.Re5#
      • 1...Sh8
        • 2.Re5#
      • 1...d3
        • 2.e4#
      • 1...g4
        • 2.Bg6#
      • 1...g6
        • 2.Rf6#
      • 1...Sxd8!
    • 1.e3?
      • threat
        • 2.e4#
      • 1...Sd6
        • 2.Re5#
      • 1...dxe3!
  • Keys
    • 1.Re4!
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd6
        • 2.Re5#
      • 1...Sd8
        • 2.Re5#
      • 1...Sh8
        • 2.Re5#
      • 1...d3
        • 2.Se3#
      • 1...g4
        • 2.Sh4#
      • 1...g6
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::R1(E),XS(e)
    • S(e);N_GUARD::R1(E)
    • P(a);N_GUARD::P(A)
    • P(c);SBLOCK::B(D)
    • P(f);N_GUARD::R1(E)
  • Tries
    • Try
      • B(F);
      • Vars
        • S(e);N_GUARD::R1(E),XS(e)
        • S(e);N_GUARD::R1(E)
        • P(a);N_GUARD::P(A)
        • P(c);SBLOCK::B(D)
        • P(f);N_GUARD::R1(E)
      • Refutation
        • S(e);XB(F)
    • Try
      • P(A);
      • Threat
        • P(A)
      • Vars
        • S(e);N_GUARD::R1(E)
      • Refutation
        • P(a);XP(A)
  • Actual
    • R(E);
    • Vars
      • S(e);N_GUARD::R1(E),XS(e)
      • S(e);N_GUARD::R1(E)
      • P(a);N_GUARD::S(B)
      • P(c);N_GUARD::S(B)
      • P(f);SBLOCK::B(D)
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