MESON Chess Problem Database

Problem Display
PID: 269432 (4N1N1/1P1kPPBn/Q1p2p2/2n4B/4P3/8/8/1K6 w - - 0 1)

Hoek, Willem

Die Schwalbe, 1975

4N1N1/1P1kPPBn/Q1p2p2/2n4B/4P3/8/8/1K6

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.b8S#
    • 1...Sg5
      • 2.f8S#
  • Tries
    • 1.Bg4+?
      • 1...Se6
        • 2.Qd3#
        • 2.b8S#
      • 1...f5!
    • 1.Qd3+?
      • 1...Ke6
        • 2.Qd6#
      • 1...Sxd3!
  • Keys
    • 1.Bxf6!
      • 1...Ke6
        • 2.Qxc6#
      • 1...Sxe4
        • 2.Bg4#
      • 1...Sxa6
        • 2.Bg4#
      • 1...Sxb7
        • 2.Bg4#
      • 1...Sxf6
        • 2.f8S#
      • 1...Sb3
        • 2.Bg4#
      • 1...Sd3
        • 2.Bg4#
      • 1...Sa4
        • 2.Bg4#
      • 1...Se6
        • 2.b8S#
      • 1...Sg5
        • 2.f8S#
      • 1...Sf8
        • 2.exf8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::P=S
    • S(e);N_GUARD::P=S
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(D)
      • Refutation
        • S(a);XQ(D)
  • Actual
    • B(H);XP(c)
    • Vars
      • K(d);N_GUARD,P_SPINP(b),S_FLIGHT::QAR2(D),XP(b)
      • S(a);N_GUARD,XP(B)::B(C)
      • S(a);N_GUARD,XQ(D)::B(C)
      • S(a);N_GUARD,XP(E)::B(C)
      • S(e);N_GUARD,XB(H)::P=S
      • S(a);N_GUARD::B(C)
      • S(a);SBLOCK::P=S
      • S(e);N_GUARD::P=S
      • S(e);OGATE::PXS(e)=S
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