MESON Chess Problem Database

Problem Display
PID: 152649 (5B2/8/2pn3R/3k4/2N5/1PP2P2/8/2K2B2 w - - 0 1)

Anonymous

Pen & Pencil, 1888

(First published on Sat Nov 10 1888)

5B2/8/2pn3R/3k4/2N5/1PP2P2/8/2K2B2

#2

8 + 3

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Rh5#
    • 1...c5
      • 2.Rxd6#
  • Tries
    • 1.Se3+?
      • 1...Ke5
        • 2.Bxd6#
      • 1...Kc5!
    • 1.Bd3?
      • 1...Kc5
        • 2.Rh5#
      • 1...Se4
        • 2.Bxe4#
        • 2.fxe4#
      • 1...Sb5
        • 2.Be4#
      • 1...Sf5
        • 2.Be4#
      • 1...Sb7
        • 2.Be4#
      • 1...Sf7
        • 2.Be4#
      • 1...Sc8
        • 2.Be4#
      • 1...Se8
        • 2.Be4#
      • 1...c5
        • 2.Rxd6#
      • 1...Sxc4!
  • Keys
    • 1.Bg2!
      • 1...Kc5
        • 2.Rh5#
      • 1...Sxc4
        • 2.f4#
      • 1...Se4
        • 2.fxe4#
      • 1...Sb5
        • 2.f4#
      • 1...Sf5
        • 2.f4#
      • 1...Sb7
        • 2.f4#
      • 1...Sf7
        • 2.f4#
      • 1...Sc8
        • 2.f4#
      • 1...Se8
        • 2.f4#
      • 1...c5
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINS(c)::R(G)
    • P(b);SBLOCK::R1(G),XS(c)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT::B(H),XS(c)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(c)
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINS(c)::R(G)
        • S(c);N_GUARD::B(B)
        • P(b);SBLOCK::R1(G),XS(c)
      • Refutation
        • S(c);XS(F)
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT,P_SPINS(c)::R(G)
      • S(c);N_GUARD,XS(F)::B(B)+P(E)
      • S(c);OGATE::P(E),XS(c)
      • S(c);N_GUARD::B(B)+P(E)
      • P(b);SBLOCK::R1(G),XS(c)
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