MESON Chess Problem Database

Problem Display
PID: 19030 (B7/1N1R4/7K/RQ3P2/4k3/5n2/7P/3N4 w - - 0 1)

Hoek, Willem

6th HM., Scacco!, 1911

B7/1N1R4/7K/RQ3P2/4k3/5n2/7P/3N4

#2

9 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Kd4
        • 2.Sc4#
        • 2.Se4#
        • 2.Sf7#
        • 2.Sc8#
        • 2.Se8#
        • 2.Ra4#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kf4!
    • 1.Rd4+?
      • 1...Kxd4
        • 2.Ra4#
        • 2.Qd5#
      • 1...Sxd4!
  • Keys
    • 1.Qf1!
      • 1...Kf4
        • 2.Rd4#
      • 1...Sxh2
        • 2.Sd8#
      • 1...Se1
        • 2.Sd8#
      • 1...Sg1
        • 2.Sd8#
      • 1...Sd2
        • 2.Sd8#
      • 1...Sd4
        • 2.Sd6#
      • 1...Sh4
        • 2.Sd8#
      • 1...Se5
        • 2.Sc5#
      • 1...Sg5
        • 2.Sd8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(H);CHECK
      • Refutation
        • S(a);XR(H)
  • Actual
    • Q(D);
    • Vars
      • K(b);P-FLIGHT,P_SPINS(a)::R(H)
      • S(a);XP(B)::B(I)+S(G)
      • S(a);::B(I)+S(G)
      • S(a);SBLOCK::B(I)+S(G),DCHECK
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