MESON Chess Problem Database

Problem Display
PID: 231697 (8/3K4/B5NR/2pk1p2/6p1/2Pp2N1/3P1n2/6Bn w - - 0 1)

Anonymous

Pen & Pencil, 1888

(First published on Wed Oct 24 1888)

8/3K4/B5NR/2pk1p2/6p1/2Pp2N1/3P1n2/6Bn

#2

8 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.c4#
    • 1...Sh3
      • 2.c4#
    • 1...Se4
      • 2.c4#
    • 1...f4
      • 2.Rh5#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Sf6#
      • 1...Ke4
        • 2.Bb7#
      • 1...Se4
        • 2.Shf4#
        • 2.c4#
      • 1...c4!
    • 1.Rxh1?
      • 1...Sxh1
        • 2.c4#
      • 1...Sd1
        • 2.c4#
      • 1...Sh3
        • 2.c4#
      • 1...Se4
        • 2.c4#
      • 1...f4
        • 2.Rh5#
      • 1...c4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Bb7#
      • 1...Sxe4
        • 2.c4#
      • 1...fxe4
        • 2.Rh5#
      • 1...c4
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(b);::P(C)
    • P(g);OGATEB::R(G)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • K(f);S_FLIGHT::B(E)
      • Refutation
        • P(e);
    • Try
      • R(G);XS(a)
      • Vars
        • S(b);XR(G)::P(C)
        • S(b);::P(C)
        • P(g);OGATEB::R(G)
      • Refutation
        • P(e);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(f);S_FLIGHT,XS(D)::B(E)
      • S(b);SBLOCK,XS(D)::P(C)
      • P(g);OGATEB,SBLOCK,XS(D)::R(G)
      • P(e);SBLOCK::B(E)
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