MESON Chess Problem Database

Problem Display
PID: 232237 (6B1/6pp/5PPk/R5N1/4K3/7P/3R4/2B5 w - - 0 1)

Hoek, Willem

Schweizerische Schachzeitung, 1987

6B1/6pp/5PPk/R5N1/4K3/7P/3R4/2B5

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...hxg6
      • 2.Sf7#
  • Tries
    • 1.Sxh7?
      • threat
        • 2.Rg2#
      • 1...Kxg6
        • 2.Rg2#
      • 1...gxf6!
  • Keys
    • 1.Rg2!
      • threat
        • 2.Sf3#
        • 2.Se6#
        • 2.Sf7#
        • 2.Sxh7#
      • 1...Kh5
        • 2.Sf3#
      • 1...Kxg6
        • 2.Sxh7#
      • 1...gxf6
        • 2.Se6#
      • 1...hxg6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XP(H)::S(F)
  • Tries
    • Try
      • S(F);XP(c)
      • Threat
        • B(A)+R(B)
      • Vars
        • K(a);P-FLIGHT,XP(H)::R(B)
      • Refutation
        • P(b);XP(G)
  • Actual
    • R(B);
    • Threat
      • DUALS(4)
    • Vars
      • K(a);P-FLIGHT::R(E)+S(F)
      • K(a);P-FLIGHT,XP(H)::R(B)+S(F),XP(c)
      • P(b);XP(G)::B(A)+S(F)
      • P(c);XP(H)::B(A)+S(F),DCHECK
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