MESON Chess Problem Database

Problem Display
PID: 227134 (8/5B2/2p3P1/4p1R1/1pK1k2n/2p1P1R1/6pB/1N6 w - - 0 1)

Willmott, Arthur

British Chess Magazine, 1990

8/5B2/2p3P1/4p1R1/1pK1k2n/2p1P1R1/6pB/1N6

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.R5g4#
    • 1...Sxg6
      • 2.Bxg6#
    • 1...c2
      • 2.Sd2#
    • 1...b3
      • 2.Sxc3#
    • 1...c5
      • 2.Bd5#
  • Tries
    • 1.Be6?
      • threat
        • 2.R5g4#
      • 1...Sxg6
        • 2.Bf5#
      • 1...Sf3!
    • 1.Be8?
      • threat
        • 2.Bxc6#
      • 1...c5
        • 2.Bc6#
      • 1...Sf3!
    • 1.Rh3?
      • threat
        • 2.Rxe5#
      • 1...Sxg6
        • 2.Bxg6#
      • 1...Sf5
        • 2.Rg4#
      • 1...Sf3!
  • Keys
    • 1.Bg1!
      • 1...Sxg6
        • 2.Bxg6#
      • 1...Sf3
        • 2.R3g4#
      • 1...Sf5
        • 2.R5g4#
      • 1...c2
        • 2.Sd2#
      • 1...b3
        • 2.Sxc3#
      • 1...c5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::R(F)
    • S(e);OGATE,XP(G)::B(H),XS(e)
    • P(b);N_GUARD::S(A)
    • P(c);N_GUARD::S(A),XP(b)
    • P(g);N_GUARD::B(H)
  • Tries
    • Try
      • B(H);
      • Threat
        • R(F)
      • Vars
        • S(e);N_GUARD,XP(G)::B(H)
      • Refutation
        • S(e);
    • Try
      • B(H);
      • Threat
        • B(H),XP(g)
      • Vars
        • P(g);::B(H)
      • Refutation
        • S(e);
    • Try
      • R(D);
      • Threat
        • R1(F),XP(f)
      • Vars
        • S(e);OGATE,XP(G)::B(H),XS(e)
        • S(e);SBLOCK::R(F)
      • Refutation
        • S(e);
  • Actual
    • B(B);
    • Vars
      • S(e);OGATE,XP(G)::B(H),XS(e)
      • S(e);SBLOCK::R(D)
      • S(e);SBLOCK::R(F)
      • P(b);N_GUARD::S(A)
      • P(c);N_GUARD::S(A),XP(b)
      • P(g);N_GUARD::B(H)
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